KEEWAY F-ACT EVO Instruction & Maintenance Manual
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KEEWAY F-ACT EVO Instruction & Maintenance Manual

Two-wheeled motorcycle f-act evo
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Two-wheeled Motorcycle F-ACT EVO
User's Instruction and Maintenance Manual
KEEWAY Motorcycle Co., Ltd

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Summary of Contents for KEEWAY F-ACT EVO

  • Page 1 Two-wheeled Motorcycle F-ACT EVO User’s Instruction and Maintenance Manual KEEWAY Motorcycle Co., Ltd...

  • Page 2: Table Of Contents

    Content ..............错误！未定义书签。 Preface ................- 3 - Preparation Data ..............- 4 - Inspection/Adjustment ............- 36 - Inspection and maintenance of electrical system ........- 50 - 1. Battery/charging system ............- 52 - 1.1 Preparing documents ............- 52 - 1.2 Failure diagnosis ............
  • Page 3 7.3 Front wheel ..............- 93 - 7.4 Direction handle..............- 96 - 7.5 Front fork ..............- 96 - 8. Rear wheel/rear suspension ............- 100 - 8.1 Preparation data ............... - 100 - 8.2 Fault diagnosis ..............- 100 - The rear wheel .............

  • Page 4: Preface

    Notice: Actual product may differ from the photo or illustration on the manual. The style or structure of the vehicle shall be subject to other changes without further notices. KEEWAY Motorcycle Co., Ltd - 3 -...

  • Page 5: Preparation Data

    Preparation Data General Safety Maintenance Regulations Specification Sheet Failure Diagonosis General Safety Carbon Monoxide (CO) If the motor has to been started, make sure the working space is well ventilated, the motor can not be run in closed space. Caution The exhaust gas contains toxic gas carbon monoxide (CO), which may render people unconscious or even cause death.
  • Page 6 Maintenance Regulations During the maintence of the motorcycle, please use the metric instruments whenever possible, improper instruments may cause damage to the motorcycle. Before the maintainence operation of disconnecting or opening the protecting plate, please eliminate the pollution outside the parts or assembly parts to prevent the pollution fall into the motor, bottom plate or brake system. After disconnecting and before measuring the wear value, please purge the components and blow through with the air compressor.
  • Page 7 The length of bolt or screw is different in terms of assembly parts and protective plate. It should be installed in the right position, if confused, place the bolt into the hole to check whether it fits or not. When installing the oil seal, please fill the grease lubricant into the oil seal groove, and check the oil seal is smooth or not, otherwise it may damage the oil seal.
  • Page 8 The loose cable is the potential electric safety hazard. After clamping the cable, please check the following one to ensure the electric safety; The wire clip is not allowed to bend towards the welding spot direction; Please bind the cables at the specified position； The cable can not be routed on the end or closed angle of the frame;...

  • Page 9: Motorcycle Identification

    Motorcycle Identification 1．The motorcycle indentification number is printed on the frame ① , please see Figure 1-1. Indentification number: LBB11B05?????????. The ninth number of the vehicle indentification number is the chek code, the tenth one year code and the eleventh one assembly factory code. The frame nameplate is riveted on the left side ②...

  • Page 10: Special Tools

    Special Tools Special tools are the specially designed tools used for special positions in order to assemble or disassemble certain parts of the motorcycle. Proper special tools are essential in terms of the complete and proper adjustment and assembling. The special tools can assemble and disassemble parts safely, dependably and quickly, which can improve working efficiency by saving labor and energy.
  • Page 11 Figure Figure Figure Figure 1-10 Figure Figure ① Handle Figure 1-11 Figure 1-12 - 10 -...
  • Page 12 ① ②Piston Opening pliers 1-13 1-14 Figure Figure 1-15 1-16 Figure Figure 2．Tools used for the overhaul of chassis The special tools list to assemble and disassemble the chassis parts and the corresponding physical figure, please see Table 1-11 and 1-18. Table 1-17 Name Note...
  • Page 13 1-19 1-20 Figure Figure 1-21 1-22 Figure Figure 1-23 1-24 Figure Figure 1-25 1-26 Figure Figure 1-27 1-28 Figure Figure （2）Special tool for the overhaul of chassis: front fork seal driver. - 12 -...
  • Page 14 1-29 Figure （3）steering nut wrench. 1-30 Figure 3．Tools used for electrical parts electrical parts The special tools list to test the and the corresponding physical figure, please see Table 1-31 and 1-32. Table 1-31 Name Note avometer Figure 1-33 ignition tester Figure 1-34 Continuation Table 1-32...
  • Page 15 Specification Table (QJ50T-21T) Model QJ50T-21T Type of engine QJ1E40QMB-4 lead-free gasoline Full length mm 1860 Type of fuel （93/95） Number of Full width mm cylinders Inside Full height mm 1198 49.2× 39.2 diameter*stroke Total Wheelbase mm 1290 49.3cc displacement front axle Initiate mode Electric/foot initiate Weight of vehicle...
  • Page 16 QJ50T-21T - 15 -...
  • Page 17 Failure Diagnosis Failure diagnosis procedure when the engine fails to start or start difficultly Engine fails to start or start difficultly Check the ignition system Remove the spark plug, check the electrodes of spark plug are carbon connected Do the spark plug spark over test To clean out carbon Faint or no spark between electrodes Strong blue or bluish violet spark from the electrodes...
  • Page 18 1. Check if there is gas leaking 1. Check if the venthole of in external connections of the fuel tank cover blocks engine 2. Check if the fuel filter and 2. Check if the piston ring sticks fuel cock block in ring groove or insufficient 3.
  • Page 19 The engine overheat failure diagonosis procedure Engine overheat Check if the operation method is proper 1. Check if the fuel No. is too low Check the cooling system or the fuel is out of date 2. Check if the engine runs at high Air cooled engine speed or overload for a long time Check if the cooling fins are stained with silt or too much oil...
  • Page 20 Remove the spark plug, watch the color of spark plug insulator cluster and determine the mixture ratio of the combustible gas mixture in accordance with the different abnormal appearances Spark plug insulator cluster is white, the spark plug insulator cluster is brown Spark plug insulator cluster is exhaust muffler smokes or blast when the white, the engine is intermittent...
  • Page 21 Underpowered engine failure diagnosis procedure Engine underpowered Prop up the main jiffy stand to make the wheels lift-off, revolve wheel by hand Wheel spins smoothly Wheel spins stiffly Check the tyre pressure 1. Check if the brake drags 2. Check if the wheel bearing is overused or damaged 3.
  • Page 22 Failure diagonosis procedure of unstable engine idle speed Bad idle speed of engine Engine’s idle speed too high Engine’s idle speed unstable Engine has no idle speed Pull the air throttle of carburetor by Check the cylinder compression pressure Use ignition timing light to test hand and check if it is closed whether engine ignition is timing completely...
  • Page 23 Failure diagnosis procedure of engine’s excessive fuel consumption Excessive fuel consumption of engine Check if the operation method is right 1. Check if the motorcycle is run Prop up the main jiffy stand and revolve wheel by hand overloaded, economical speed or run at low gear 2.
  • Page 24 Failure diagnosis procedure when the exhaust muffler of two-stroke engine gives off strong blue and white smoke The exhaust muffler of two-stroke engine gives off strong blue and white smoke Check if the engine oil level in the crankcase exceeds the upper label If the engine oil in the crankcase is Start the engine and make it run at high overfilled, please drain out the excess...
  • Page 25 Failure diagnosis procedure when there is trip dog of the gear shift Trip dog of the gear shift Check if the positioned wheel spring breaks or the spring force is insufficient Disassemble the crankcase, check if the gear wheel engaging depths of Replace various gears are up to requirement Engaging depth of gear wheel is enough...
  • Page 26 Failure diagnosis procedure when the hydraulic disc brake fails hydraulic disc brake fails Check the brake fluid level in the brake primary pump liquid reserve tank The brake fluid level below the lower limit of liquid The brake fluid level above the lower limit of reserve tank liquid reserve tank Check if there is ―sponge‖...
  • Page 27 Failure diagnosis procedure when the storage battery can not be charged The storage battery can not be charged Disconnect the insert connector of magnetor wire bundle and the complete vehicle cable, use the ohmmeter to measure the resistance between the output wire ends of charge oil, and check if it meets the standard value The resistance value is smaller than...
  • Page 28 Failure diagnosis procedure when the storage battery is undercharged Storage battery is undercharged Check if the brake lamp is on Put the ignition switch in ―OFF‖ position, remove the negative pole wire from the Adjust or replace the brake storage battery, connect the ammeter negative pen to the negative ternminal of storage lamp switch battery and positive pen to the negative pole wire to check the leakage current Leakage current is greater than the...
  • Page 29 Failure diagnosis procedure when the start motor is unable to rotate Start motor is unable to rotate Turn on the ignition switch, press the horn button or toggle the turn signal switch The electric horn does not sound The sound of the electric horn is or the sound is weak, and the loud and the light of turn signal is light of turn signal is pale...
  • Page 30 Failure diagnosis procedure when the start motor is weak in rotating Start motor is weak in rotating Turn on the ignition switch, press the horn button or toggle the turn signal switch The electric horn does not sound The sound of the electric horn is or the sound is weak, and the loud and the light of turn signal light of turn signal is pale...
  • Page 31 Failure diagnosis procedure when all the lamps don’t work All the lamps don’t work AC power supply illuminating system DC power supply illuminating system Press the horn button or Disconnect the insert connector between the magnetor toggle the steering lamp wire bundle and the complete vehicle cable, use the switch lamp-testing method to check if there is electrical energy...
  • Page 32 Failure diagnosis procedure when the bulb of lamp is easily burnt out The bulb of lamp is easily burnt out Turn on the ignition switch, press the horn button or toggle the turn signal switch The sound of the electric horn is The electric horn does not sound or loud and the light of turn signal sound raucously, and the light of...
  • Page 33 Failure diagnosis procedure when the light of lamp is weak The light of lamp is weak AC power supply illuminating system DC power supply illuminating system Disconnect the insert connector between Turn on the ignition switch, press the horn button or toggle the the magnetor wire bundle and the turn signal complete vehicle cable, use the ohmmeter...
  • Page 34 Failure diagnosis procedure when the steering lamp does not work The steering lamp does not work Some steering lamps on one All the steering lamps do not work side do not work Steering lamps on one side do not work Remove the steering lamp Remove the steering lamp Press the horn button to check the...
  • Page 35 Failure diagnosis procedure when the electric horn does not work The electric horn does not work Turn on the ignition switch, and toggle the steering lamp to check the work of steering lamp The light of the steering lamp is bright The steering lamp does not work or the light is pale The electricity supply of...
  • Page 36 Failure diagnosis procedure when the brake lamp does not work The brake lamp does not work The brake lamp does not work Remove the brake lamp cover and check if the circuit board of brake lamp is burnt out Use a lead to short circuit the two terminals or two leading Replace the circuit board of wires of the brake lamp switch brake lamp...

  • Page 37: Inspection/Adjustment

    Inspection/Adjustment Preparing information Cylinder pressure Periodic Maintenance & Inspection List Gear oil Engine oil/ Oil filter Replacement of gear oil Fixing steering stem bearing & handlebar Driving belt Inspection & adjustment of throttle cable Free stroke of front/rear brake Air filter Inspection of brake fluid Spark plug Headlight...
  • Page 38 Specification Engine Idle speed 1800± 100rpm/min Clearance of spark plug 0.6-0.7mm Spec. of spark plug BR7ES Frame Free stroke of front brake lever 10-20mm Free stroke of rear brake lever 10-20mm Specification Tyre pressure Front outer 120/70-12 tyre 145-170kpa Tyre pressure unit: Kpa Front rim 3.50×...
  • Page 39 Periodic Maintenance & Inspection List Mileage between services and time 300K 1000K 3000K 6000K 12000KM 14500KM Applicable tools Inspection item 12 M 15 M Air filter Ordinary tools Petrol filter Ordinary tools Oil filter Ordinary tools Replacement of engine Replacement every 1000KM Ordinary tools Tyre pressure...

  • Page 40: Oil Level

    Piston & cylinder—excessive abrasion; replace cylinder if it is blocked. Please have your motorcycle inspected and adjusted periodically at KEEWAY distributors for being in best condition. The above table is established under the presupposition of 1000 km/month.

  • Page 41: Air Filter

    When the oil leaks completely, you can install the bolt and packing washer after they are cleaned. Add oil to proper level. Check the oil leakage when the engine operates at its idling speed. Check the oil capacity again. Cable accelerator inspection/adjustment Check whether the cable accelerator is smooth or not.

  • Page 42: Spark Plug

    Replacement time Replace at an early time if the motorcycle is always running on rainy days. *Note •Make sure the air filter cap is well installed before installing the filter Spark plug Remove the spark plug Check the burning, pollution and carbon deposition situation of the spark plug.
  • Page 43 Battery Battery remova Remove the rubber pad (1) of pedal. Remove the clamp bolt and clamp of battery. irst remove the negative wire and then remove the positive wire. Take the battery (5) from the battery container. Warning！ The tools for removing the positive electrode should not contact the flame, otherwise it will be very dangerous that the damaged battery will cause fire.

  • Page 44: Idle Speed Adjustment

    Warning！ • Battery should be far away from fire source •Turn off the charger switches when starting or completing charging in order to prevent spark of the connections resulting in explosion. • You must follow the required current time when charging. *Note •...

  • Page 45: Gear Oil

    When the igniton is incorrect, please check the ignition system. Remove the bolt Remove the guarding board Use the ignition timing light to check and ensure the ignition timing. Cylinder pressure Operate when the engine warm up. Remove the cushion and body shield. Remove the spark plug.

  • Page 46: Drive Belt

    Install the oil level gauge. * Note Confirm whether the bolts wear or not. Gear oil replacement Remove the gear oil to check bolt Remove the oil bolt, make the gear oil flow out Fix the oil bolt. Note: Confirm whether the bolts wear or not. Supplement gear oil, Check if there is leaking oil Install gear oil to check bolt...
  • Page 47 Free path of rear brake Measure the free path of rear brake at the point of the brake pedal. Free path：10-20mm Inspection of brake fluid level Use the front brake to the upper limit, and check the oil level thought the oil indicator. In case the brake fluid level is at or below the arrow in the picture, certain brake fluid shall be added until it reach upper limit.
  • Page 48 Clutch Start the engine and increase its speed gradually to check the working condition of the clutch. If the motorcycle fails to go and the engine stops, you should Check the clutch block. If necessary, change a new one. Front/rear suspension system Front Pull the front brake tight and check the absorber.
  • Page 49 Nuts/bolts/fixed parts Check whether nuts, bolts, fixed parts are loose or not. If any, tightening them according to their torque force. Rim/Tyre Check whether the tyre or rim has crack, screw or any other damage. Check the tyre pressure. * Note Check the tyre air pressure when it is cold.
  • Page 50 In case there is any loosening, tightening them according to the required torque force value. Torque force value: Front wheel axle 55-62 N· m Rear wheel nut 100-113 N· m Steering column bearings and handle fix Swing the handle in order to confirm there is no interference with wire. Confirm the handle turn freely when the front wheel turns.

  • Page 51: Inspection And Maintenance Of Electrical System

    Inspection and maintenance of electrical system Torque force list of fixing parts in electrical system Position and name of fixing componen Torque of fixing（N· m） Clutch cover bolt of starting motors Set screw nut of clutch cover of starting motors Rectifier bolt High tension coil fixing bolt Flywheel Fixing bolt...
  • Page 52 Charging System Battery Horn Power locking components 4 rectifier 5 Release resistance Frequency conversion flash apparatus Meters Starting relay igniter Ignition coil assembly - 51 -...

  • Page 53: Battery/Charging System

    1. Battery/charging system Preparing documents --------1.1 Failure diagnosis -------------1.2 Battery---------------1.3 Charging system -------------1.4 Voltage current adjustor -------1.5 Magnetor charging coil -------1.6 Removal of magnetor ---------1.7 1.1 Preparing documents Note of work: *Note 1. Battery charge and discharge can be repeated use, its life span can be shortened and performance decreases after discharging.

  • Page 54: Failure Diagnosis

    Preparing standards Item Specifications Capacity/Type 12V-4AH/dry cell Voltage Full charge 13.1V （20℃） Obligatory 12.3V(not working for 1h) Battery charge Charging current standard：0.4A，rapid：4A Charging time standard：10-15h，rapid：30min capacity 90W/8000rpm Lighting coil impedance （ 20℃） Magnetor Green/Red - Black 2.0-2.5Ω White – Black 1.5-2Ω Charging coil impedance(20℃) Type Single-phase semi-wave charge under short circuit...

  • Page 55: Battery

    1.3 Battery 1.3.1 Battery Removing Remove the set screws of battery box cover. Remove the cover of battery box. First remove the negative wire and then remove the positive wire. Take off the battery. Warning！ When removing the positive terminal, the tools should not be contacted with the bracket.

  • Page 56: Charging System

    •Measure the voltage for every other 30 minutes. Charging Current：Standard：0.4A Emergency：4.0A Charging Time： Standard：10-15h. Emergency：30min. Charging Completion： Open-circuit voltage： above 12.8V 1.4 Charging System 1.4.1Short Circuit Test Remove the batter ground wire, and connect the voltmeter between the negative terminal and ground wire. Turn off the switch and check whether it is short circuit.

  • Page 57: Rectifier

    1.5 Rectifier 1.5.1Main Wiring Inspection Remove the 4p plug of the rectifier. Check the conducting state of the terminals of the main wiring. Item（wiring color） Judgments Between Battery （red） and With battery voltage GND of the body Between GND wire （black）and GND of the With wiring body...

  • Page 58: Magnetor Lighting Coil

    Measure resistance value between the white coils of magnetor with multimeter. Standard Value：1.5-2Ω（20℃） Replace the magnetor coil when the measured value exceeds the standard value. Bolt 1.7 Magnetor Lighting Coil *Note Check the magnetor lighting coil on the engine. Cooling 1.7.1 Inspection Remove the 3p connector of the magnetor.
  • Page 59 1.7.3 Installation Flywheel Cooling Fan Fan Cover Install the stator on the body of the engine. Connect the magnetor terminator. Clean up the taper part of the bent axle and flywheel. Install the solid key of the flywheel into the bent axle. Aim the flywheel groove at the solid key on the axle.

  • Page 60: Ignition System

    Ignition System Ignition System 1 Battery 2 Horn 3 Power Locking Components 4 Rectifier 5 Release Resistance 6 Frequency Conversion Flash Apparatus 7 Meter 8 Starting Relay 9 Igniter 10 Ignition Coil Assembly - 59 -...

  • Page 61: Material Preparation

    2. Ignition System Material Preparation--------------2.1 CDI Group----------------2.4 Failure Diagnosis-----------------2.2 Ignition Coil--------------2.5 Ignition System Inspection----------2.3 Trigger------------------2.6 2.1 Material Preparation Note of Work: 1. Checking the ignition system following the sequence listed in the table of failure diagnosis. 2. The ignition system is solidified in the CDI group and you don’t have to adjust the ignition time. 3.

  • Page 62: Failure Diagnosis

    Multimeter 2.2 Failure Diagnosis Spark plug fails to jump. Error Reason（in compliance with the following order） ① The inner resistance is too small and it should be tested by required tester. ② Low rotation speed of the bent axle. Ignition ③...

  • Page 63: Ignition System Inspection

    2.3 Ignition System Inspection 万用表 Multimeter *Note • When there is no spark on the spark plug, check whether there is loose wiring or poor contact of all components, and make sure all voltage values are normal. • There are various kinds of multimeters with different internal impedances and different test values.
  • Page 64 coil (black/red) and the 4P joint (black end). Start the motor or step on the actuating lever to determine the maximum voltage of charging coil. Connection Method：black/red end to the positive pole and black end to the negative pole. Minimum Voltage：above 95V. * Note Never touch the metal of test prod when measuring the voltage in case of electric shock.

  • Page 65: Cdi Group

    • If the obtained voltage of the end of CDI group is abnormal while the one of the nd of the alternator is normal, the problem should be poor contact or wire break. • If both ends are abnormal, the trigger may be broken, please refer to the checking method in the failure diagnosis table.

  • Page 66: Trigger

    2.5.2 Primary Coil Inspection Impedance measuring between the ends of the primary coil. Standard Value：0.6Ω±10％（20℃） Impedance value within the range is good. If the impedance value is "∞", there is wire break in the coil. Replace it with a new one. 2.5.3 Secondary Coil With a spark plug attached.
  • Page 67 Activation System BRAKE SWITCH BRAKE SWITCH BATTERY RELAY STARTOR MOTOR STARTER SWITCH Starting Drawing 启动示意图 1Battery 2Horn 3Power Locking Components 4 Rectifier Release Resistance 6 Frequency Conversion Flash Apparatus 7 Meter 8 Starting Relay 9 Igniter 10 Ignition Coil Assembly - 66 -...

  • Page 68: Activation System

    3. Activation System Material Preparation---------------3.1 Failure Diagnosis---------------3.2 Starting Motor---------------3.3 Starting Relay-------------3.4 3.1 Material Preparation Notes of working The unloading of the starting engine could be carried out on the engine. Refer to the method of unloading when unloading the engine. Preparation Standards Item Standard Value...

  • Page 69: Failure Diagnosis

    3.2 Failure Diagnosis Activation failure Weak rotating force Starting motor is rotating of the starting motor well while the engine is not •Burnt out fuse ·Low storage battery •Broken starting clutch •Low storage battery •Poor contact of connecting line •anticlockwise revolution of the starting motor •Broken main switch •The gear of the starting motor is •Low storage battery...
  • Page 70 burning loss in the surface. Clean the metal powder on the surface of the commutators. Conduction check between all interfaces of other components Make sure armature shafts of all interfaces could not turn on. Conduction check of the outer cover of the starting motor. Make sure the conduction terminator and the outer cover of the starting motor could not turn on.

  • Page 71: Starting Relay

    3.3.5 Installation Install wires of the starting motor; make sure the soldering cup is properly installed. Check whether the O-ring is damage, and replaced it with a new one when necessary. Cover the O-ring with engine oil, and install it onto the starting motor.
  • Page 72 3.4.4 Actuation Inspection Remove the storage battery out of the starting relay, Ω and connect the end of the starting relay with a multimeter. Connect the fully charged storage battery between the black wire and the green/yellow wire of the relay. The relay will utter a ―click‖...

  • Page 73: Bulbs/Switches/Meters

    Bulbs/Switches/Meters Certificate No. of front lamp: E4 0014908 Certificate No. of front position lamp: E4 50R-001765 Certificate No. of rear lamp: E4 50R-0014909 Certificate No. of front turn light: E4 50R-001765 Certificate No. of rear turn light: E9 50R-001493 Certificate No. of rear license lamp: E3 001002 1 Front signal lamp 2 Meter...

  • Page 74: Material Preparation

    4. Bulbs/Switches/Meters Material Preparation--------------4.1 Meters----------------------4.6 Failure Diagnosis--------------4.2 Main Switches------------4.7 Headlight Bulb Replacement--------4.3 Speaker--------------------4.8 Front Turn Signal Lamp Bulb Replacement------4.4 Combined Switch--------4.9 Taillight Bulb Replacement -------4.5 4.1 Material Preparation Notice of Work Conduct examination of the switch (The switch could be removed from the motorcar before being examined). 4.2 Failure Diagnosis The main switch is not "ON".

  • Page 75: Taillight Bulb Replacement

    4.3.2 Installation Install the bulb in the opposite order of removal. 4.4 Front Turn Signal Lamp Bulb Replacement 4.4.1 Unloading Remove the pedal components. Remove the front shield and disconnect the wire of headlight bulb. Loosen set screws of turn signal lamp (3). Take off the bulb socket.

  • Page 76: Meters

    4.5.3.2 Installation Install the bulb in the opposite order of removal. 4.6 Meters Remove the rearview mirrors. Remove set screws on the deckboards. Take off the upper deckboard. Take off milometer components. Take off the meters. Install the meters in the opposite order of removal. 4.7 Power Lock 4.7.1 Inspection Take off the front shield.

  • Page 77: Speaker

    4.8 Speaker Check Remove the speaker wires. The speaker is good, if it can sound after The speaker wires connect to a storage battery. 4.9 Handle switch Remove the left and right rear-mirror Remove the left and right combination switch fixing screw. Loosen the left and right combination switch.

  • Page 78: The Check And Maintenance Of The Chassis

    The check and maintenance of the chassis The table of chassis fastener torque Fastened parts and fastener names Fastening torque（N· m） Oil pump body assembly mounting bolt Front brake cylinder assembly 22-29 mounting bolt Fluid brake fixing bolt Muffler decoration cover screw Tap welding assembly mounting bolt 40-60 Front wheel locking nut...

  • Page 79: Brake

    Front hydraulic brake Front brake disc diameter:190mm Front disc thickness:4 m Use limit:3mm Friction plate thickness: 5.0mm Use limt:4.0mm Installation torque valu e of bolt 8 in figure 8: 5-9N·m Installation torque of value of nut 27 in fi gure : 37-44N·m Free stroke brake...

  • Page 80: Rear Hub Brake

    assembly 25 Bolt M8 x 36 26 Front brake disc mounting bolt 27 Nut M10 x 1.25 Rear hub brake Torque value of nut 5 in figure: 100-113N·m Inside diameter of hub bra ke: 110mm wear limit:111mm Brake shoe block thicknes s: 4.5mm Use limt:3.5mm Rear brake handle stroke:...
  • Page 81 5. Brake Maintenance instructions ----------------------5.1 Fault diagnosis ------------------------5.2 Front hydraulic brake--------------------------5.3 Rear hub brake-------------------------5.4 Maintenance instructions Operation precautions *Note: • When installing and removing, the brake components can not be stained with grease. • The brake should be cleaned with specified cleaning agent in order to avoid the degradation of the brake performance.
  • Page 82 1. Improper brake adjustment 2. Wear of the brake shoe block and friction plate component 3. Improper installations of the brake shoe block and friction plate component 4. The brake shoe block and friction being polluted Slow response of the brake or the tightness of the handle 1.
  • Page 83 The abnormal sound of the brake 1. Wear of the brake shoe block and friction plate component 2. The brake shoe block and friction being polluted 5.3 Front hydraulic brake 5.3.1 Removing *Note •The change of the friction plate component. •If a friction plate will be used again, it should be marked at its side in order to be installed back to the original position.

  • Page 84: Rear Hub Brake

    •Must be measured with a micrometer. Measure the thickness of the friction plate component. Change the front brake disc and friction plate component, if their thickness are less than the standard value or they have been polluted. Available limit: friction plate 5.0mm Front brake disc 2.6mm...
  • Page 85 • Change the brake shoe block. • The brake should be marked at its side before removing, if it will be used again. Remove the following components from the rear wheel. Rear brake: 1. Rear rocker arm installation bolt（13） 7.Brake shoe block component（6） 2.
  • Page 86 Screw the bolt and nut to the specified torque value. Torque value: Rear wheel fixing nut: 100-113N·m Do not make the brake shoe block and front brake disc stained with grease. If the brake shoe block and front brake disc are stained with grease, they must be cleaned with brake cleaning fluid.
  • Page 87 *Note: The body cover should not be damaged when being assembled and disassembled. The hoop-claw part of the body should not be damaged when being assembled and disassem bled. Align the panel and cov er on the body with the ir respective groove.

  • Page 88: Body Cover

    1 rear low fender 2 rear fender wing lapel 3 rear low fender 4 rear fender 5 rear reflector component 6 tap rear over 7 tap front cover 8 speedometer visor 9 pad component 10 helmet bucket 11 decoration plate of the front big cover panel 12 front big cover panel 13 front base plate 14 left connection plate 15 right connection plate 16 low connection plate 17 foot protecting plate 18 storage battery box cover 19 frame number plate 20 rear pedal component 21 pedal left protection cover 22 pedal 23 pad lock 24 spark plug cover plate 25 connection plate of left and right protection...
  • Page 89 Align the panel and cover on the body with their respective groove. Correctly assemble the hoop-claw part of each part. The accessory should not be damaged when installing the cover - 88 -...
  • Page 90 Front wheel Tire specification:tire120/70-12 Certification number of front wheel tire: E11 75R -0002 Rim specification:3.50× 12 Limit value of rim swing difference:vertical:2.0mm Horizontal:2.0mm Limit value of front axle bending degree: 0.2mm 1 self-locking nut M12 x 1.25 2 gear seat component 3 rolling bearing 6201-2RS 4 intermediate shaft sleeve component 5 vacuum tire 120 / 70-12 / K-413 6 front rim 7 front wheel oil sealing component/ 22 x 35 x 7 8 front brake disc 9 front wheel left shaft sleeve 10 bolt M8 x 20 11 front axle 12 valve - 89 -...

  • Page 91: Front Suspension

    Front suspension Installation torque value of bolt12 in figure: N· m 37-44 Installation torque value of bolt13 in N· m figure:5-9 Rear ball amount:22 Low ball amount:22 1 bolt M6× 16 2 front fender bracket2 3 odometer clip 4 front right muffler component 5 front left muffler component 6=hydraulic brake wire clip 7 front fender bracket1 8 boltM10×...

  • Page 92: Direction Handle

    Direction handle Installation torque value of bolt2(direction handle fixing bolt) in figure:40-60 N· m Front brake handle free stro 10-20mm Rear brake handle free stro 10-20mm Accelerator manipulation ha ndle(figure6) free stroke:2-5 1 right grip component 2 right combination switch 3 tap melding component 4 right rear view mirror component 5 left rear view mirror component 6 left combination switch 7 left grip...

  • Page 93: Front Wheel/Front Suspension

    7. Front wheel/front suspension Preparation data-------------------------7.1 Fault diagnosis-------------------------7.2 Front wheel-------------------------7.3 Manipulation-------------------------7.4 Front fork assembly-------------------------7.5 Preparation data Operation precaution Before removing the front wheel, support the bottom body with jack etc to make the front wheel float on the ground (Note: do not make the front wheel reverse). When operating ,do not make the brake shoe block，...

  • Page 94: Front Wheel

    The direction handle bearing has failed. The direction handle bearing has been damaged. The tire pressure is too low. The tire leaks. 7.2.2 Direction unstable The direction handle bearing has been damaged. The tire pressure is not sufficient. The front fork bends and the front axle bends. The front wire deforms or skews.
  • Page 95 7.3.2.1 Axle bending check Put the axle on the V-shape seat and measure its eccentricity with a dial gauge. Available limit: change above 0.2mm. 7.3.2.2 Swing check of the rim Put the rim on a precise support and check its swing degree.
  • Page 96 车轴 Axle 游隙 Clearance 轴向 Axial 径向 Radial 7.3.3 Bearing change Remove the front axle, front wheel and the left sleeve of the front wheel, intermediate sleeve component of the front wheel. Remove the oil sealing and bearing with the oil sealing puller and bearing puller. Note: the removed bearing should be replaced with a new bearing.

  • Page 97: Direction Handle

    Front axle locking nut 55-62 N·m 7.4 Direction handle 7.4.1 Removing Remove the rear view mirror component. Remove the fixing screw of the handle high and low cover decoration. Remove the handle high cover decoration cap and remove the meter. Remove the front big cover component.

  • Page 98: Rear Wheel/Rear Suspension

    Remove the front left/right muffler component (4, 5). Tools: Direction handle welding component fixing bolt wrench. Fixing nuts wrench. Special tools of the Bearing steel bowl removing. * Note: Wipe the openings of the body protection plate with rage. Remove the high and low bearing steel bowl with special tools of bearing bowl removing. 7.5.3 Installation Smear the bottom bearing steel bowl with lubricating oil and confirm the amount of the steel ball（22）.
  • Page 99 Torque value of the rear wheel fixing nut5 in figure: 100-113N· m Installation torque value of bolt4 figure: 22-29N· m Installation torque value of bolt14 figure: 37-44N· m Brake inside diameter( wear limit): 111mm Brake shoe block lining(wear limit): 3.5mm 1 tire 130/70-12 2 rim 3.50×...

  • Page 100: Rear Wheel

    Rear wheel Tire specification:130/70-12 specification: 3.50× 12 swing difference limit: Vertical:2.0mm Horizontal:2.0mm Torque value of the rear wheel fixing figure:100-113N· m Rear tire certification number:E11 75R -000216 1 self-locking nut M14× 1.5 2 dustproof cover 3 vacuum tire 130/70-12/K-413 4 valve 5 rear rim component 6 brake shoe block component...

  • Page 101: Preparation Data

    8. Rear wheel/rear suspension Preparation data-----------------8.1 Fault diagnosis-----------------8.2 Rear wheel-----------------8.3 Rear muffler-----------------8.4 Preparation data Operation precautions Do not make the brake hub and brake shoe block stained with grease. Preparation standard Item Standard value（mm） Available limit（mm） Longitudinal Rear wheel swing degree Horizontal Locking torque Rear wheel fixing nut...

  • Page 102: The Rear Wheel

    8.3 The rear wheel 8.3.1 Removing Remove the muffler component. Remove the rear inside fender. Remove the rear axle fixing nut. Remove the rear wheel. 8.3.2 Check 8.3.2.1 Rim swing check Turn the wheel with hands and measure the eccentricity of it with dial gauge.

  • Page 103: Rear Muffler

    QJ50T-21T rear wheel 8.4 Rear muffler 8.4.1 Removing Remove the seat pad and the left and right protection plate. Remove the rear container, rear shelf assembly, rear fender. Remove the rear muffler fixing bolt. Remove the muffler. 8.4.2 Installation Install the rear muffler. Torque value: High fixing bolt:37-44 N·m Low fixing bolt:22-29 N·m...

  • Page 104: Tank/Seat Cushion

    Tank/seat cushion Note: when removing the tank, the switch of it must be turned at “OFF”. The torque value of bolt10 figure:5-9 N·m The torque value of bolt11 figure:5-9 N·m 1 frame component 2 rear handrail 3 seat cushion component 4 tank component 5 seat cushion lock installation plate 6 seat cushion lock seat component 7 cable component 8 inside hexagonal screw M8×...
  • Page 105 installation bolt 13 rear rocker arm installation shaft 14 power hanger welding component 15 self-locking nut M12× 1.25 Tank Gasoline tank capacity: 5.6±0.2L The torque value of bolt16 figure:5-9 N·m Note: when removing tank, switch of it must be turned at “OFF”. 1 tank body 2 fuel sensor component 3 combination screw M5×...
  • Page 106 4× 2× 340 11 bolt M6× 12 12 tank cock component(14*1 clip spring type) 13 steel wire clampφ 8 tubing Φ 4.5× 2× 70 15 filter component 16 tubing Φ 4.5× 2× 190 17 clip component Seat cushion The torque value of bolt4 figure:5-9 N·m The torque value of...

  • Page 107: Preparation Data

    7 self-tapping screw ST4.2× 13 8 clip sheet ST4.2 9. Tank/seat cushion Preparation data-----------9.1 Fault diagnosis-----------9.2 Tank/seat cushion----------9.3 9.1 Preparation data Operation precaution Removing site should be away from the fire source. When removing the tank, the switch of it must be turned at ―OFF‖. When assembling, fasten the bolt and nut to the specified torque value.
  • Page 108 Gas leaks 9.3 Tank/seat cushion 9.3.1 Removing Open the seat cushion（1） 。 Remove the seat cushion fixing bolt（4） 。 Remove machine oiler protection cover. Remove the machine oiler. Remove the cushion and helmet bucket. Remove the rear container assembly. Remove left/right rear protection...

  • Page 109: Check And Maintenance Of The Engine

    Check and maintenance of the engine - 108 -...
  • Page 110 Table of the engine fastener torque value Fastened parts and fastener names Fastening torque（N· m） Fan wind guiding cover locking bolt 10-12 Cylinder cover locking nut 15-18 Spark plug 22-25 Inlet pipe locking bolt 10-12 Cooling fan impeller locking screw 10-12 Flywheel locking bolt 45-50...

  • Page 111: Lubrication System

    Lubrication system Note: rod worm should rotate flexible, without stagnation and unilateral tightness while worm gear should have little axial movement and the machine oil pump o-shaped ring shall not have cutting edge. Each plug of the machine oil pump should not leak and the sealing ring should be complete.

  • Page 112: Lubricating System

    10. Lubricating system Preparation data-----------10.1 Fault diagnosis-----------10.2 Machined oil pump-------------10.3 10.1 Preparation data Operation precautions Rod worm should rotate flexible, without stagnation and unilateral tightness while worm gear should have a little axial movement and the machine oil pump o-shaped ring shall not have cutting edge. Each plug of the machine oil pump should not leak and the sealing ring should be complete.

  • Page 113: Machine Oil Pump

    10.3 Machine oil pump 10.3.1 Removing Loosen the bolt and remove the wind guiding cover component. Wind guiding cover Loosen the screw on the fan and remove the fan. Screw Remove the magnetic motor, rotor and bracket. Magnetic motor stator, rotator, bracket Machine oil pump component Remove the worm gear and machine oil component from the crane...
  • Page 114 Installing the oil machine Shown as the following figure Machine oil pump Machine oil pump body Plunger spring Plunger Machine Gear oil pump cover 10.3.2 Installation Conduct in a sequence contrary to the ―removing‖. 10.3.3 Check Check whether the worm gear surface has been damaged. Check whether the keyway has been damaged.
  • Page 115 Note: Since the gasoline is very dangerous, smoke and fire is strictly prohibited in the operation site. After carburetor being removed, use rag to block the inlet pipe in order to prevent foreign body in. 1 screw 2 float chamber 3 needle valve component 4 float 5 float pin...

  • Page 116: Preparation Data

    11. Carburetor Preparation data-------------11.1 Fault diagnosis-------------11.2 Removing of the carburetor---------11.3 Installation of the carburetor---------11.4 Adjustment of the carburetor ---------11.5 11.1 Preparation data Operation precautions ·Gasoline is very dangerous, smoke and fire is prohibited in the operation site. ·Take special care to spark. ·The wire should not be pulled and bended with force, since deformation and damage will affect the its performance.

  • Page 117: Disassembly Of Carburetor

    Carburetor has on fuel Carburetor has been obstructed Gas filter is obstructed mixed air is too concentrated or too thin Gas tube is obstructed Expiratory system has second air suction Needle valve is in sticking Idle adjustment is not good Oil surface adjustment is not good oil amount adjustment is not good Idle system or electric concentration valve has been...
  • Page 118 Turn the fuel switch to―OFF‖ position. Pull out the inlet oil hose and to loosen the guy wire of oil Electrical valve. enrichment valve Pull out stopper at the end of outlet oil hose. Put the fuel oil interface in the floating bowl into another box. Pull out the electrical enrichment valve interface.

  • Page 119: Assembly And Adjustment

    Loosen the screw and to take out the float bowl. Dismantle the floating module, floating pin and needle valve module. 11.3.3 Checking To check the wear of needle valve module, needle valve seat and floating module. Screw Floating bowl If the needle valve core is worn, it should Needle valve be replaced.

  • Page 120: Cylinder Head

    not need any adjustment. The turnover number should be recorded preparing for the assembly. The engine should be started and operated for 3 minutes to make sure it is operated in normal operation temperature. The idle adjustment screw should be adjusted to make the engine speed in 1800rpm; The mixture control screw should be rotated to the end gently.
  • Page 121 Note: In order to guarantee the seal between cylinder cover and cylinder block, the cylinder cover would withstand very big pre-tightening force of bolt. Pre-tightening force value: 50Nm 1. Spark plug 2. Mounting bolts of cylinder cover 3. Cylinder cover 4.Cylinder gasket 5.

  • Page 122: Cylinder Cover

    ylinder cover 12. C Preparation materials---------------12.1 Failure diagnosis ---------------12.2 Cylinder cover -----------------12.3 Checking of cylinder cover -------------12.4 Assembly of cylinder cover -------------12.5 12.1 Preparation materials Attentions In order to guarantee the seal between cylinder cover and cylinder block, the cylinder cover would withstand very big pre-tightening force of bolt.

  • Page 123: Cylinder Cover

    Loosen fixing nut and spark plug. Dismantle the cylinder Cylinder Fixing nut cover. cover Spark plug 12.4 Checking of cylinder cover Ruler Check whether the cylinder cover is broken through. To check the flatness of the bottom plan of cylinder cover Acceptable limit: 0.04mm...
  • Page 124 Cylinder block and piston Note: All components should be washed and blew with compressed before checking. 1. Piston 2. Piston pin 3. Cylinder block 4. Cylinder gasket 5. Cylinder cover 6. Nut 7.Spark plug - 123 -...

  • Page 125: Thirteenth, Cylinder Block And Piston

    Thirteenth, Cylinder block and piston Preparation of materials-----------------13.1 Piston-------------------13.4 Failure diagnosis----------------13.2 Assembly of piston -------------13.5 Cylinder block-------------------13.3 13.1 Preparation materials Points for Attentions: All components should be washed and blew with compressed air before checking. Functions of cylinder block: it provides space for gas compression, combustion and expansion, and guide for the movement of piston.

  • Page 126: Failure Diagnosis

    inside diameter of piston pin hole 12.002-12.008 12.04 external diameter of piston pin 11.994-12 11.96 Clearance between piston pin hole and piston pin 0.002-0.014 0.02 Inside diameter of wrist-pin end of connecting rod 14.016-14.034 14.06 13.2 Failure diagnosis Low compression pressure Smoking on the exhaust pipe Piston is worn;...

  • Page 127: Piston

    13.4 Piston 13.4.1 Disassembly piston pin retainer. Remove the the crankcase. Attentions: Do not drop the retainer to Remove the piston pin and to remove the piston. Piston pin, retainer Check piston, piston pin and piston ring Remove piston ring Attentions: do not break or damage piston ring To remove the carbon deposits in the piston ring groove Remove piston rings and put them in the bottom of the...
  • Page 128 Measure the external diameter of piston pin Allowable limit: 11.96mm Clearance between piston pin hole and piston pin Allowable limit: 0.02mm Check external diameter of piston Attentions: Measuring position should be 90 degree with the piston pin, 11.5mm lower than the piston skirt Allowable limit: 39.9mm 11.5mm Check the scratch and wear of inside wall of cylinder...
  • Page 129 Measure the wrist-pin end of connecting rod Wrist-pin Allowable limit: 14.06mm。 connecting rod 13.4.2 Assembly of piston Assemble the pin Top ring Apply machine oil to all piston rings and pistons. To assemble the piston ring with upward slope Second ring Attentions：...
  • Page 130 Driving plate / clutch / driven wheel Note: During the operation, oil is not allowed to be left on the surface of v-shaped belt. It should be removed if there is any oil left so as to reduce the slippage between v-shaped belt and pulley.
  • Page 131 Feet startup mechanism Note: During the operation, oil is not allowed to be left on the surface of v-shaped belt. It should be removed if there is any oil left so as to reduce the slippage between v-shaped belt and pulley. 1.

  • Page 132: Preparation Of Materials

    14. Driving plate / clutch / driven wheel/ feet startup mechanism Preparation materials--------------------14.1 Clutch /driven wheel---------14.5 Failure diagnosis---------------------14.2 Disassembly of clutch and driven wheel ----14.6 Left crankcase cover -------------------14.3 Assembly------------------14.7 Driving plate-----------------------14.4 Feet startup mechanism------------14.8 14.1 Preparation of materials Points for attentions During the operation, oil is not allowed to be left on the surface of v-shaped belt.

  • Page 133: Left Crankcase Cover

    Broken or damaged clutch friction lining wear of ball Broken clutch-pressing spring polluted driving pulley surface 14.3 Left crankcase cover Disassembly Remove the fixing bolt of cover, and to remove the gasket and fixed pin. Left cover Attentions: Fixing bolt Cross disassemble the fixed bolts.
  • Page 134 Allowable limit: 16mm。 Please use the original parts when replacing. Remove right half components of driving wheel. Right half components of driving wheel 14.4.2 Disassembly right half components of driving wheel Check the wear of ball Measure the outside diameter of ball Allowable limit: 14.4mm。...

  • Page 135: Clutch/Driven Wheel

    Measure the outside diameter of right half driving wheel Allowable limit: 26.06mm。 Right half Measure the outside diameter of sliding sleeve driving wheel Allowable limit: 25.94mm。 Sliding sleeve 14.5 Clutch/Driven wheel 14.5.1 Disassembly Fix clutch sleeve using fixer and remove fixing nut. Remove clutch sleeve, clutch/driven wheel.
  • Page 136 - 135 -...

  • Page 137: Disassembly Of Clutch And Driven Wheel

    Check the wear of clutch sleeve. Measure the outside diameter of clutch sleeve. Allowable limit: 118.5mm。 Check the wear of clutch friction lining. Measure the thickness of friction lining. Friction Allowable limit: 1.5mm。 lining 14.6 Disassembly of clutch and driven wheel Clutch spring compressor should be used for disassembling clutch-pressing spring Attentions:...
  • Page 138 Remove pilot pin. Remove the left half weldment of driven wheel Left half weldment of driven wheel Disassemble the oil seal on the left half driven wheel Pilot pin Oil seal Check the free length of clutch spring Allowable limit: 68mm。 自由长度：free length Left Check the wear of driven wheel\...
  • Page 139 Put the outside rolling bearing coated with oil in the bushing. Attentions: Bearing When pressing the outside rolling bearing into the bushing, screwdriver the side with mark should be placed outward. And then fill the bearing chamber with 8-9g oil. Mount cir-clip Designated oil Ball bearing...

  • Page 140: Assembly

    Install spring sheath. Wipe clean the spilled oil. 弹簧护套：Spring sleeve Install the clutch-pressing spring and clutch on the driven wheel. clutch spring pressing combination. After compression, the lock nut should be installed. Attentions: The spring should be compressed appropriately, otherwise it would be damaged.
  • Page 141 Check the wear of idler gear Measure the clamping force of retainer General standard value: 8-12N Note: 1.retainer 2. Starting claw 3. Idler gear 4. Idler shaft 5. Start shaft assembly 6. Feet start shaft spring Reduction gear - 140 -...
  • Page 142 Function: it is a transmission torque and could determine the final output torque and speed. - 141 -...
  • Page 143 15. Speed Reducer Preparation Data----------------- 15.1 Fault Diagnosis ----------------- 15.2 Gearbox ------------------- 15.3 Installation --------------------- 15.4 15.1 Preparation Data Effect: Transfer the torque and determine the final output torque and rotational speed. 15.2 Fault Diagnosis Vehicle can not move in spite of the starting engine; Drive gear was damaged;...
  • Page 144 Remove the gasket and dowel. Remove the principal axis of clutch and output shaft gear. Output Shaft Gasket Remove the central jack shaft and central gear. Gear Jack Shaft Principal Axis Central Gear of Clutch 15.3.2 Examination of Output Gear Box Cover Examination of the tear and damage on the principal axis of Principal Axis of...
  • Page 145 Crankcase Note: The crankcase is thin-wall casting and should prevented from impact to produce distortion or rupture. components should cleaned before examination and test and blew clean with pressure air. Before operation, please release lubricant oil from the crankcase. - 144 -...
  • Page 146 16. Crankcase Preparation Data-----------------16.1 Fault Analysis-----------------16.2 Crankcase -------------------16.3 Assembly---------------------16.4 16.1 Preparation Data Attentions to operation: The crankcase is thin-wall casting and should be prevented from impact to produce distortion or rupture. All components should be cleaned before examination and test and blew clean with pressure air. Before operation, please release lubricant oil from the crankcase.
  • Page 147 16.3 Crankcase 16.3.1 The Disassembly of Crankcase Bolt Driving Unscrew the bolt and remove the driving motion gear. Motion Remove the gear. Gear Dismantle the fixed bolt of crankcase Gear Dismantle the crankcase on both sides. Note: The gasket should be avoided from damage. Bolt Remove the gasket and dowel.
  • Page 148 Remove the grease seal from the left crank case. Grease Seal Remove the grease seal from the right crank case. Grease Seal 16.3.2 Examination The measurement of clearance between the connecting rod. Allowed Limit: 0.6mm 连杆大端测量位置 Measurement Location of the Connecting Rod The measurement of clearance in X-Y direction between the connecting rod.
  • Page 149 Check if there is odd voice or loose in the rotation of crank axle bearing. If there is odd voice or loose, please change the crank axle component. Note: Crank Axle Bearing The dismantled grease seal cannot be reused. The disassembly of grease seal should adopt professional tools. 16.4 Assembly The assembly of the crank case should be in reversible order of the disassembly.
  • Page 150 Examination and Maintenance of the Exhaust Gas Emission System Silencer The torque force value of set bolt 13 in the joint of silencer in the picture is 5-9 N· m The torque force value of set bolt 6 in the joint of silencer in the picture is 22-29 N·...
  • Page 151 17. Exhaust Gas Emission Control System Guaranty of Exhaust Gas Emission Control System---------------17.1 Regular Maintenance Notice/Guarantee of the Emission Standard ------------17.2 Exhaust Gas Control System Machinery Function-----------------17.3 Accelerant Transformation System -------------------------17.4 Solutions for Idling Emission Amount Surpassing the Rated Value ---------17.5 17.1 Guaranty of Exhaust Gas Emission Control System 1.
  • Page 152 For other problems, please inquire KEEWAY Sales Agency or KEEWAY Service Center. Related emission regulations are listed below: Emission Regulation HC+ NOX ≤1.0g/km ≤1.2g/km Emission Standard ※ If the emission standard has any changes, please refer to the latest national standard.
  • Page 153 efficiency seek the improvement on fuel efficiency. Air Guide Equipment Guide the air into exhaust gas pipe. The incomplete burned CO and HC will become harmless gas again. Distinction Equipment Component Purpose and Function Canned oxidated accelerant equipped in Exhaust Gas Accelerant Accelerant Device the center of exhaust gas pipe makes CO,...
  • Page 154 触媒加放点 Accelerant Adding Point 17.4.2 Introduction: 1. The effect of transformed accelerant is to change the exhaust gas HC, CO and NOx into harmless gas H and N and discharge them. 2. The transformed accelerant contains Platinum and Rhodium and other rare metal. Unleaded gasoline is the only alternative.
  • Page 155 8. When repairing the motor ignition system, to dismantle the ignition plug is not allowed. If necessary, time should be limited. 17.5 Solutions for Idling Emission Amount Surpassing the Rated Value (Two Strokes) Implement Regular Inspection (Maintenance Plan) Qualified Measure Idling Emission (Note 1) Qualified Adjust the Carbureter (Note 2) Qualified...

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