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Kinroad 150 Service Manual

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KINROAD 150 SERVICE MANUAL
VERSION 1, DEC., 2005
KINROAD
1

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Summary of Contents for Kinroad 150

  • Page 1 KINROAD 150 SERVICE MANUAL VERSION 1, DEC., 2005 KINROAD...
  • Page 2 KINROAD 150. The KINROAD 150 fits the needs of a wide variety of KINROAD users above 16 years old. Those who will be servicing this KINROAD should carefully review this manual before performing any repair or service.
  • Page 3 KINROAD 150 SERVICE MANUAL VERSION 1, DEC., 2005 CONTENTS 1. GENERAL INFORMATION -------------------------------------------------------------------------------------------------4 2. PERIODIC MAINTENANCE AND TUNE-UP PROCEDURES -----------------------------------------------------7 3. ENGINE --------------------------------------------------------------------------------------------------------------------------13 4. ELECTRIC SYSTEM ---------------------------------------------------------------------------------------------------------64 5. CHASIS --------------------------------------------------------------------------------------------------------------------------74 6. WIRING DIAGRAM -----------------------------------------------------------------------------------------------------------81...
  • Page 4 KINROAD 150 SERVICE MANUAL VERSION 1, DEC., 2005 1. GENERAL INFORMATION MODEL IDENTIFICATION FRAME NUMBER The frame number or VIN is stamped under the seat on the frame cross member and stuck behind the seat. ENGINE NUMBER The engine number is located on the lower front left side of the engine cases.
  • Page 5 KINROAD 150 SERVICE MANUAL VERSION 1, DEC., 2005 FUEL AND OIL RECOMMENDATIONS Be sure to use the specified fuel and oil. FUEL Gasoline should SAE 90# or higher. Unleaded gasoline is recommended. ENGINE OIL SAE10W-30 engine oil of high quality should be used.
  • Page 6 KINROAD 150 SERVICE MANUAL VERSION 1, DEC., 2005 CAPACITIES Maximum Load 400lbs Fuel Tank 7.0L Engine Oil 850ml Starting <5s Climbing 25ｏ Battery 12V 8Ah Head Light 12V 21W Tail Light 12V 21W/5W Fuse Brake Track <7 m@20mph Top Speed...
  • Page 7 KINROAD 150 SERVICE MANUAL VERSION 1, DEC., 2005 Tire pressure/wear Brake performance Tightness of screws Air cleaner Carburetor Spark plug C, A Drive chain C, A, L Brake fluid Replacement of gearbox oil Chassis C, I Fuel switch/fuel tank Battery...
  • Page 8 KINROAD 150 SERVICE MANUAL VERSION 1, DEC., 2005 If the spark plug is too tight to remove, spray rust inhibiter on the spark plug washer and the thread part. Rotate the spark plug after soaking. Clear up the filth and carbon accumulation on the spark plug with a steel brush or a blade.
  • Page 9 KINROAD 150 SERVICE MANUAL VERSION 1, DEC., 2005 FOAM FILTER MAINTENANCE 1. Remove the foam filter from steel cage 2. Wash in non-flammable cleaning solvent 3. Submerge in oil and squeeze to remove excess oil 4. Install the element back into the air box.
  • Page 10 KINROAD 150 SERVICE MANUAL VERSION 1, DEC., 2005 “ON” position The normal operating position for the fuel valve lever is the “ON” position. In this position, fuel will flow to the carburetor. “RES” position If the fuel lever in the fuel tank becomes too low for the engine to operate with the fuel valve lever in the “ON”...
  • Page 11 KINROAD 150 SERVICE MANUAL VERSION 1, DEC., 2005 ENGINE OIL Inspect every time before riding. Replace monthly. Remove the drain plug from the left side bottom of the engine. Drain into oil pan for disposal. Remove the large cap on the left bottom of the engine and remove the screen.
  • Page 12 KINROAD 150 SERVICE MANUAL VERSION 1, DEC., 2005 3. ENIGNE CYLINDER CYLINDER REMOVAL The removal can be done on the vehicle body. Remove cylinder head. Remove cylinder. Remove cylinder gasket, bolts. Erase cylinder gasket. 1. Do not damage the bond area of the cylinder.
  • Page 13 KINROAD 150 SERVICE MANUAL VERSION 1, DEC., 2005 cylinder, and to enlarge its diameter by 0.50mm or 1.00mm, then fit the piston and piston ring whose sizes are also enlarged. If the wear is too severe and cannot be reworked, a new cylinder should be installed.
  • Page 14 KINROAD 150 SERVICE MANUAL VERSION 1, DEC., 2005 clearance. First ring 0.09 mm Second ring 0.09 mm CONNECTING ROD END INSPECTION Put the piston ring and bearing into the connecting rod end; inspect the degree of tightness of the piston pin in connecting rod end.
  • Page 15 KINROAD 150 SERVICE MANUAL VERSION 1, DEC., 2005 CRANK CONNECTING ROD SET The connecting rod is the component that link piston and crank. The picture shows the structure and assembly relations of the crank connecting rod component. CRANKCASE AND CRANKSHAFT REMOVAL Take the following procedures when removing the crankcase and crankshaft.
  • Page 16 KINROAD 150 SERVICE MANUAL VERSION 1, DEC., 2005 Use special tools to remove the starting driven gear. Remove the crankcase positioning bolts. Separate the right crankcase and the left crankcase. The joint face cannot be damaged. Remove the gasket and the dowel pins.
  • Page 17 KINROAD 150 SERVICE MANUAL VERSION 1, DEC., 2005 Remove the oil seal from the right crankcase. CRANKSHAFT AND CRANKCASE INSPECTION Replace the whole set of the crankshaft if serious wear is found while inspecting. Measure the axial clearance of the big end of the connecting rod.
  • Page 18 KINROAD 150 SERVICE MANUAL VERSION 1, DEC., 2005 CRANKSHAFT AND CRANKCASE INSTALLATION Mount the crankcase oil seal. Put the cam chain into the left crankcase. Put the crankshaft into the left crankcase. Pay attention to avoid the cam chain damaging the oil seal.
  • Page 19 KINROAD 150 SERVICE MANUAL VERSION 1, DEC., 2005 VALVE MECHANISM INSPECTION AND SERVICING The picture shows the common valve train of a four-stroke engine. This is a kind of overhead valve; its intake port, exhaust port, camshaft are all located in the cylinder head; the valve bottoms up over the combustion chamber.
  • Page 20 KINROAD 150 SERVICE MANUAL VERSION 1, DEC., 2005 Turn the cooling fan clockwise until the mark of the timing drive sprocket on the camshaft is at top dead center, and the "T" symbol (or other mark) of the magneto flywheel aligns with the crankcase mark.
  • Page 21 KINROAD 150 SERVICE MANUAL VERSION 1, DEC., 2005 Turn the flywheel counterclockwise to make the "T" mark on the flywheel align with the mark on the crankcase. When the hole on the cam chain (timing drive chain wheel) is up, it is the top dead center position.
  • Page 22 KINROAD 150 SERVICE MANUAL VERSION 1, DEC., 2005 Turn the cam chain tensioner adjusting bolt counter-clockwise and release the lock. Apply oil on the new O-ring. Mount and tighten the cam chain tensioner cover bolt. The o-ring must be mounted properly in the groove.
  • Page 23 KINROAD 150 SERVICE MANUAL VERSION 1, DEC., 2005 CAM CHAIN TENSIONER The chain tensioner must be in good working order for proper chain tension. Cam chain Cam chain tensioner Cam chain tensioner lifter Gasket Cam chain tensioner pivot Cam chain guide...
  • Page 24 KINROAD 150 SERVICE MANUAL VERSION 1, DEC., 2005 VALVE AND VALVE SPRING VALVE AND VALVE SPRING REMOVAL Remove the cylinder head. First remove the valve cotter with the valve compressor, and then remove in turn the upper spring race, valve spring, lower spring race, and valve stem oil seal.
  • Page 25 VALVE GUIDE REPLACEMENT Heat the cylinder head to 100 – 150 ｏC. The cylinder head must be wholly and quickly heated to the specific degree, and cannot be heated partly;...
  • Page 26 KINROAD 150 SERVICE MANUAL VERSION 1, DEC., 2005 After tapping the valve guide, you need to trim it with a reamer. The reamer can only be turned right; do not push in or out directly Clean the cylinder head and eliminate the scraps generated while reaming.
  • Page 27 KINROAD 150 SERVICE MANUAL VERSION 1, DEC., 2005 Ream the upper angles of the valve seat working surface with a 30ｏ grinding cutter. Ream the lower angles of the valve seat working surface with a 60ｏ grinding cutter. Finally, ream the valve seat to the specific seat width with a 45ｏ...
  • Page 28 KINROAD 150 SERVICE MANUAL VERSION 1, DEC., 2005 If the valve seat still cannot contact evenly with the valve after trimming, the valve should be revised or replaced. VALVE AND VALVE SEAT LAPPING After finishing, the valve and valve seat should be lapped in order...
  • Page 29 KINROAD 150 SERVICE MANUAL VERSION 1, DEC., 2005 LUBRICATION SYSTEM INSPECTION AND SERVICING GENERAL INTRODUCTION The picture shows the functional diagram of the lubrication system. After the lubrication oil crosses the filter screen, it is pumped by the rotator oil pump; some of it goes into the big end of the connecting rod, and splashes on the cylinder wall and the small end of the connecting rod;...
  • Page 30 KINROAD 150 SERVICE MANUAL VERSION 1, DEC., 2005 Step on the kick-starter for several times to drain all the remaining oil. Inspect if there is any damage of the screen and O-ring. If so, it should be replaced. Install the oil filter screen and the screen cover and tighten them.
  • Page 31 KINROAD 150 SERVICE MANUAL VERSION 1, DEC., 2005 Remove the oil pump driving gear nut, and remove the driving gear, chain. Remove the oil pump positioning bolts, and remove the oil pump assembly. Remove the screws, and disassemble the oil pump.
  • Page 32 KINROAD 150 SERVICE MANUAL VERSION 1, DEC., 2005 OIL PUMP ASSEMBLY Assemble the inner and outer rotors of the oil pump, and mount the oil pump shaft. When assembling, align the unfilled corner of the oil pump shaft with the corner of the inner rotor, and then assemble.
  • Page 33 KINROAD 150 SERVICE MANUAL VERSION 1, DEC., 2005 Install the partition board and tighten bolts. Install the starting reduction gear, starting clutch Assemble the gasket, dowel pins. Assemble the right crankcase cover-positioning bolt Assemble the trigger winding and the stator coil.
  • Page 34 KINROAD 150 SERVICE MANUAL VERSION 1, DEC., 2005 VACUUM CHAMBER The picture shows the structure of the vacuum chamber of the CV carburetor. VACUUM CHAMBER REMOVAL Remove the body cover. Remove the automatic choke lead wire. Loosen the fuel drain bolt, and drain the fuel in the float chamber. Remove the fuel line, and the vacuum pipe.
  • Page 35 KINROAD 150 SERVICE MANUAL VERSION 1, DEC., 2005 VACUUM CHAMBER INSTALLATION Assemble the plunger, vacuum membrane into the carburetor body. Push the plunger upwards in the direction of the vacuum chamber cover to make the carburetor jet tube in the condition of totally open.
  • Page 36 KINROAD 150 SERVICE MANUAL VERSION 1, DEC., 2005 FLOAT CHAMBER INSPECTION Inspect the float for any damage and fuel in the float. Inspect the float valve and float valve seat for wear. If there is wear, it should be replaced.
  • Page 37 KINROAD 150 SERVICE MANUAL VERSION 1, DEC., 2005 AIR CUT VALVE REMOVAL Remove the air inlet manifold of the air cut valve. Remove the bolt, and remove the vacuum membrane cover, the spring, and the vacuum membrane. AIR CUT VALVE INSTALLATION Assemble the vacuum membrane on the carburetor bolt.
  • Page 38 KINROAD 150 SERVICE MANUAL VERSION 1, DEC., 2005 Remove the return spring stopping plate, and remove the return spring. Remove the whole set of starting lever. Remove the starting idle shaft. Disassemble the starting spindle. Disassemble the starting idle shaft.
  • Page 39 KINROAD 150 SERVICE MANUAL VERSION 1, DEC., 2005 SPIRAL SPLINE TRANSFERRING STYLE STARTING MECHANISM INSTALLATION Assemble the starting idle shaft set. Before assembling, apply a little grease on the bore of the idle shaft. Assemble the starting spindle, the return spring, and the spring holder pin.
  • Page 40 KINROAD 150 SERVICE MANUAL VERSION 1, DEC., 2005 ELECTRICAL STARTING MECHANISM STARTER MOTOR REMOVAL Before removal, first shut off the main switch, and disconnect the battery connecting wire. Then press the starting button. At this time the starter motor should not run. This must be done for insuring safety.
  • Page 41 KINROAD 150 SERVICE MANUAL VERSION 1, DEC., 2005 CARBON BRUSH INSPECTION Inspect the insulating condition between the connecting wire terminal and the starter motor case, and it should be non-conductive. Inspect the conducting condition between the connecting wire terminal and the carbon brush, and it should be conductive.
  • Page 42 KINROAD 150 SERVICE MANUAL VERSION 1, DEC., 2005 Assemble the new O-ring on the carbon brush base. Install armature into starter motor case, making sure not to damage the carbon brushes. Tighten motor case bolts. Make sure the starter motor case is free of metal particles, because it is magnetic.
  • Page 43 KINROAD 150 SERVICE MANUAL VERSION 1, DEC., 2005 9. Starter motor lead wire 19. O-ring 10. Clamp 20. Screw 21. Bolt REDUCTION GEAR INSPECTION Remove the starting clutch. Remove the reduction gear to inspect its wearing degree. Measure the inner diameter of the reduction gear. It should be replaced when the diameter is more than 10.05 mm.
  • Page 44 KINROAD 150 SERVICE MANUAL VERSION 1, DEC., 2005 Inspect if there is any abrasion or damage on the contact surface between the driving gear and the needle bearing. It should be replaced if the surface is damaged. Measure the inner diameter of the driving gear. It should be replaced when the diameter is more than 32.06mm.
  • Page 45 KINROAD 150 SERVICE MANUAL VERSION 1, DEC., 2005 Install the right crankcase cover. Install the left crankcase cover. Take the reduction mechanism and the engaging mechanism as a whole unit, then this unit is called the starter. CONTROLING MECHANISM STARTER RELAY INSPECTION Turn the main switch to the “ON”...
  • Page 46 KINROAD 150 SERVICE MANUAL VERSION 1, DEC., 2005 BELT DRIVEN CVT MECHANISM INSPECTION AND SERVICING GENERAL INTRODUCTION The belt driven CVT mechanism is made up of two belt pulleys (the drive belt pulley and the driven belt pulley) whose diameter can be changed, and a notched driven belt. The driving belt pulley is mounted on the engine crankshaft, and the driven belt pulley connects with the rear driven mechanism.
  • Page 47 KINROAD 150 SERVICE MANUAL VERSION 1, DEC., 2005 The structure of the driving belt pulley is shown in the picture. The picture shows the working theory of the driving belt pulley. The picture shows the structure of the driven belt pulley. The clutch showed in the picture is the automatic...
  • Page 48 KINROAD 150 SERVICE MANUAL VERSION 1, DEC., 2005 DRIVE BELT PULLEY DRIVE BELT PULLEY REMOVAL Remove the left crankcase air pipe lock bolt. Remove the kick-starter, and remove the left crankcase fixing bolt. Remove the left crankcase cover. Hold the drive plate with a universal wrench, and then remove the nuts and gasket on the drive plate shaft.
  • Page 49 KINROAD 150 SERVICE MANUAL VERSION 1, DEC., 2005 DRIVE BELT PULLEY INSPECTION Inspect if there is any abrasion or damage of the centrifugal roller. Measure the outer diameter of the centrifugal roller. Service limit 17.0mm sure the inner diameter of the movable drive plate.
  • Page 50 KINROAD 150 SERVICE MANUAL VERSION 1, DEC., 2005 Install the movable drive plate on the crankshaft. Enlarge the driven plate belt groove, and mount on the driven belt. Mount the other end of the driven belt on the drive plate hub.
  • Page 51 KINROAD 150 SERVICE MANUAL VERSION 1, DEC., 2005 CLUTCH INSPECTION Inspect if there is any abrasion or damage on the clutch friction plate. Measure the inner diameter of the clutch friction plate. Service limit 125.5mm Inspect if there is any abrasion or damage of the clutch centrifugal weight friction piece.
  • Page 52 KINROAD 150 SERVICE MANUAL VERSION 1, DEC., 2005 CLUTCH INSTALLATION Mount the clutch damper rubber on the drive plate pin. Mount the new clutch weight set and spring on the drive plate. Install the connecting piece, the circlip, and the bottom plate.
  • Page 53 KINROAD 150 SERVICE MANUAL VERSION 1, DEC., 2005 DRIVEN BELT PULLEY INSPECTION Measure the free length of the driven belt pulley spring. Service limit 163.7mm Inspect if there is any abrasion or damage on the driven plate. Measure the outer diameter of the driven plate pulley hub.
  • Page 54 KINROAD 150 SERVICE MANUAL VERSION 1, DEC., 2005 Remove the circlip from the driven plate. Drive the ball bearing out. The removed bearing cannot be reused. Apply some grease on the new ball bearing. Drive the ball bearing into the driven plate with its front face upwards.
  • Page 55 KINROAD 150 SERVICE MANUAL VERSION 1, DEC., 2005 TRANSMISSION BELT TRANSMISSION BELT INSPECTION Remove the left crankcase cover. Inspect if the transmission belt is chapped or worn. Measure the width of the belt. Service limit 19.0mm Replace the belt if its width is less than the above limitation.
  • Page 56 KINROAD 150 SERVICE MANUAL VERSION 1, DEC., 2005 REAR TRANSMISSION MECHANISM INSPECTION AND SERVICING The structure of the rear transmission mechanism is shown in the following picture. 1. COVER, TRANSMISSION 2. GASKET, TRANSMISSION COVER 3. BEARING, RADIAL BALL 4. BEARING, RADIAL BALL 5.
  • Page 57 KINROAD 150 SERVICE MANUAL VERSION 1, DEC., 2005 Observe the oil level. It is correct when the oil level is parallel with the observing hole. When the oil level is too low, add until the oil flows from the level screw.
  • Page 58 KINROAD 150 SERVICE MANUAL VERSION 1, DEC., 2005 TRANSMISSION CASE GEAR INSPECTION Inspect if the sub-shaft/sub-shaft gear is damage or worn. Inspect if the final gear, the final gear shaft is damaged or worn. BEARING ON THE TRANSMISSION CASE COVER REPLACEMENT When removing or installing the bearing on the transmission case cover, you must use the special tool shown in the picture.
  • Page 59 KINROAD 150 SERVICE MANUAL VERSION 1, DEC., 2005 Remove the sub-shaft bearing. Drive in the new final gear shaft and bearing. When driving in the final gear shaft bearing, keep the bearing parallel. The same is required when installing the sub-shaft bearing and the driven pulley shaft bearing.
  • Page 60 KINROAD 150 SERVICE MANUAL VERSION 1, DEC., 2005 Remove the sub-shaft bearing. Remove the driven belt pulley shaft bearing. Drive in the new driven belt pulley shaft bearing. Drive in the new sub-shaft bearing. Drive in the new final gear shaft bearing.
  • Page 61 KINROAD 150 SERVICE MANUAL VERSION 1, DEC., 2005 Install the driven belt pulley shaft on the transmission case cover. Drive in the transmission case cover oil seal. Mount the sub-shaft/sub-shaft gear and the final gear shaft into the left crankcase.
  • Page 62 KINROAD 150 SERVICE MANUAL VERSION 1, DEC., 2005 Install the transmission case cover and bolt. Mount the driven pulley/the clutch set. Mount the drive pulley, the transmission belt, and the left crankcase cover. Fill the transmission case with oil.
  • Page 63 KINROAD 150 SERVICE MANUAL VERSION 1, DEC., 2005 4. ELECTRIC SYSTEM CHARGING SYSTEM INSPECTION ELECTRIC LEAKAGE TESTING Turn the main switch to the "OFF" position. Disconnect the negative ground wire from the battery. Connect the positive end of the ammeter with the negative end of the battery.
  • Page 64 KINROAD 150 SERVICE MANUAL VERSION 1, DEC., 2005 Connect the positive cable first, and then connect the negative cable. BATTERY OPEN-CIRCUIT VOLTAGE INSPECTION Disconnect the cable on the battery terminals. Disconnect the negative pole first, and then the positive pole.
  • Page 65 KINROAD 150 SERVICE MANUAL VERSION 1, DEC., 2005 The picture shows structure of a common generator. 1. Cooling fan 6. Bolt 2. Generator assembly 7. Nut 3. Flywheel comp. 8. Bolt 4. Stator comp. 9. Bolt 5. Washer PRIMARY COIL INSPECTION The inspection work can be done on the engine, and there is no need to remove the generator.
  • Page 66 KINROAD 150 SERVICE MANUAL VERSION 1, DEC., 2005 GENERATOR REMOVAL Remove the cooling fan cover bolt and screw. Remove the cooling fan cover. Remove the cooling fan bolt, and remove the cooling fan. Hold the flywheel with a universal holding wrench, at the same time remove the flywheel nut.
  • Page 67 KINROAD 150 SERVICE MANUAL VERSION 1, DEC., 2005 Reverse the removal procedure for installation. When installing the flywheel, make sure there are no metal pieces, such as bolts or nuts, attaching to the inner wall of the flywheel. After the installation is finished, start the engine to inspect and adjust the ignition timing.
  • Page 68 KINROAD 150 SERVICE MANUAL VERSION 1, DEC., 2005 ∞ ∞ W (White) 3 - 100 KΩ ∞ ∞ Y (Yellow) 5 - 100 KΩ ∞ ∞ ∞ R (Red) ∞ ∞ G (Green) 5 - 100 KΩ REGULAR RECTIFIER INSPECTION When the main wiring—sub electric circuit condition is normal;...
  • Page 69 +/-3ｏ, it should be adjusted. Slowly increase the engine rpm (when the 150 model increases to 5000 r/min). At this time, if the mark on the crankcase aligns with the rotor ignition advance angle mark, the advance angle device is good; if not, it should be adjusted or replaced.
  • Page 70 KINROAD 150 SERVICE MANUAL VERSION 1, DEC., 2005 Connect the positive end of the multimeter with the trigger winding (green/red wire terminal) on the 4-core connector, and the negative end with the green wire terminal on the 4-core connector. Press the starting button or kick starter and measure the highest voltage of the trigger winding.
  • Page 71 KINROAD 150 SERVICE MANUAL VERSION 1, DEC., 2005 Please carefully read the instrument specification so as to operate properly. Connect CDI component with the special wire of the testing instrument. Observe the spark condition on the instrument when the switch is turned on different positions.
  • Page 72 KINROAD 150 SERVICE MANUAL VERSION 1, DEC., 2005 Clean the carbon around the spark plug to prevent it from dropping into the cylinder when removing the spark plug. Remove the spark plug. When installing, connect the black/yellow wire of the primary ignition coil with the black/yellow connector of CDI, and the green wire with the green connector of CDI.
  • Page 73 KINROAD 150 SERVICE MANUAL VERSION 1, DEC., 2005 5. CHASSIS REAR AXLE REMOVAL Disassemble RR. Wheel Remove the Cotter Pins on Axle Nut, RR Wheel Remove the Axle Nut, RR. Wheel. Block up rear end of the machine. Remove rear wheel and hub assembly by sliding off splines of axle.
  • Page 74 KINROAD 150 SERVICE MANUAL VERSION 1, DEC., 2005 FRONT & REAR SHOCKS The Front and Rear Shocks are oil dampened units. They are non-re-buildable. If any oil seepage is noticed, the shock should be replaced. ADJUSTMENT OF FRONT SHOCK There are 5 positions for you to choose on front shock.
  • Page 75 KINROAD 150 SERVICE MANUAL VERSION 1, DEC., 2005 amount of grease to the lip of the seal. If the retention spring is in bad shape, replace the seal with a new one. SEAT Remove all the Nuts and Bolts underneath the seat rail.
  • Page 76 KINROAD 150 SERVICE MANUAL VERSION 1, DEC., 2005 A-ARMS Grease the nipples of Upper & Lower A-Arm, FR. Wheel periodically. Remove Bolt of Upper & Lower A-Arm, FR. Wheel. Check the Nylon Bushing of Upper & Lower A-Arm, FR. Wheel for wear. Replace them immediately if wear is present.
  • Page 77 KINROAD 150 SERVICE MANUAL VERSION 1, DEC., 2005 TIE ROD Tie rods should be checked for ease of movement in their full rotation. Remove protective boot and apply grease. Check tie rod ends periodically for tightness at their adjusting nuts.
  • Page 78 KINROAD 150 SERVICE MANUAL VERSION 1, DEC., 2005 SPARK PLUG a. Remove the spark plug and inspect it each time you change the oil. (Use a spark plug wrench) The electrodes should be kept clean and free of carbon. The presence of carbon or excess oil will greatly deter proper engine performance.
  • Page 79 KINROAD 150 SERVICE MANUAL VERSION 1, DEC., 2005 CHAIN ADJUSTMENT After the first two hours of operation, check the chain adjustment, and readjust if it has more than 1/2” flex. 1. Loosen Nut 1. 2. Adjust Nut 2 3. Tighten Nut 1. Verify if the chain is loose. Repeat the above-mentioned steps until it is good enough.
  • Page 80 KINROAD 150 SERVICE MANUAL VERSION 1, DEC., 2005...