HYOSUNG RT125D Owner's Manual
  1. Manuals
  2. Brands
  3. HYOSUNG Manuals
  4. Motorcycle
  5. RT125D - PARTS CATALOGUE
  6. Owner's manual

HYOSUNG RT125D Owner's Manual

Motorcycle
Hide thumbs Also See for RT125D:
Table of Contents

Advertisement

Quick Links

See also: Service Manual , Manual
WARNING
This owner's manual contains important safety information.
Please read it carefully.

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the RT125D and is the answer not in the manual?

Questions and answers

Subscribe to Our Youtube Channel

Related Manuals for HYOSUNG RT125D

Summary of Contents for HYOSUNG RT125D

  • Page 1 WARNING This owner’s manual contains important safety information. Please read it carefully.
  • Page 2 This manual should be considered a permanent part of the motorcycle and should remain with the motorcycle when resold or otherwise transferred to a new owner or operator. The manual contains important safety information and instructions which should be read carefully before operating the motorcycle.
  • Page 3 Hyosung reserves the right to make Motorcycling is one of the most exhilarating changes at any time. sports and insure your riding enjoyment,...
  • Page 4 Proper break-in operation during this time should be carefully reviewed. will help ensure maximum life and performance from your new motorcycle. Hyosung parts are manufactured of high WARNING quality materials, and manufactured parts are finished to close tolerances. Proper The personal safety of the rider may be break-in operation allows the machined involved.
  • Page 5 WARNING Noise Control System (muffler assembly) TAMPERING WITH NOISE CONTROL SYSTEM PROHIBITED Owners are warned that the law may prohibit : (a) The removal or rendering inoperative by any person other than for the purpose of maintenance, repair or replacement, of any device or element of design incorporated into any new vehicle for the purpose of noise control prior to its any sale or delivery to the ultimate purchaser or while it is in use ;...

  • Page 6: Consumer Information

    ● ● Observe periodic maintenance the owner’s manual storage com- requirements by your authorized partment located under the seat. HYOSUNG dealer is trained and ● ● Before the rider’s first use of the equipped to perform this service. , make sure that he/she is ●...
  • Page 7 WARNING WARNING Keep both hands on the handgrips at all comes equipped with a times when riding. Removing your side stand safe device. hands from the handgrips reduces your This safe device is returned by itself. ability to control the motorcycle, and Push the side stand until it is in contact could result in an accident.
  • Page 8 ▣ ▣ WEAR A HELMET ▣ ▣ FAMILIARIZE YOURSELF WITH THE MOTORCYCLE WARNING WARNING Motorcycle safety equipment starts with a quality safety helmet. One of the most Your riding skill and mechanical serious injuries that can happen is a knowledge form the foundation for safe head injury.
  • Page 9 Accessories added to the can lead to unsafe operating conditions. It is not possible for Hyosung to test each machine should be as light as possible accessory on the market or combinations and kept to a minimum.
  • Page 10 mounted load can create a high center of gravity which is very dangerous and makes the motorcycle difficult to handle. The size of the “ load” can also affect the aerodynamics and handling of the motorcycle. Balance the load between the left and right side of the motorcycle and fasten it securely.

  • Page 11: Table Of Contents

    TABLE OF CONTENTS 1. SERIAL NUMBER LOCATION ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ 2. FUEL AND OIL RECOMMENDATION ∙...

  • Page 12: Fuel Hose

    7. BREAK-IN ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ 8.

  • Page 13: Serial Number Location

    Frame number : SERIAL NUMBER LOCATION Engine number : The frame and/or engine serial numbers are used to register the motorcycle. They are also to assist your dealer in terms of ordering parts or referring to special service information. � �...

  • Page 14: Fuel And Oil Recommendation

    FUEL AND OIL ENGINE OIL RECOMMENDATION ■ ■ ENGINE OIL SPECIFICATION F U E L Classification Grade Remarks system Use unleaded gasoline with an octane Over SL rating 91 or higher. Unleaded gasoline can extend spark plug 10W/40 life and exhaust components life. ※...

  • Page 15: Names Of Each Parts

    NAMES OF EACH PARTS � � � � � � � � � � ① ⑥ Clutch lever Front brake fluid reservoir ② ⑦ Left handle switches Right handle switches ③ ⑧ Choke lever Front brake lever ④ ⑨ Instrument panel Throttle grip ⑤...
  • Page 16 � � � � � � � � � ⑪ � Spark plug Passenger footrests ⑫ � Fuel cock Side stand ⑬ � Seat Footrests ⑭ � Rear carrier Gearshift lever ⑮ Muffler N O T E “ “ ” ” : : means the invisable parts.
  • Page 17 � � � � � � � � � � � � Throttle stop screw Footrests � � Engine oil filter cap Rear brake pedal � � Engine oil filler cap Passenger footrests � � Engine oil drain plug Air cleaner �...

  • Page 18: Controls

    To lock the steering, turn the handlebar CONTROLS all the way to the left. Push down the key to the “OFF” position and turn it to the “LOCK” position after come up again and IGNITION SWITCH remove the key. All electrical circuits are disconnected. WARNING Do not operate the ignition switch to be in the “OFF”...

  • Page 19: Instrument Panel

    ④ ④ ODOMETER / TRIP METER / CLOCK INSTRUMENT PANEL The display in it has three functions, odometer, trip meter and clock. � � The display changes clock, trip meter or � odometer, as indicated before turning the ignition switch off. �...
  • Page 20 To change the display, push the switch ⑤ for 0.6 ~ 1 seconds while the display indicates the clock, trip meter or odometer you want to change. Follow the procedure below to adjust the clock. 1. Push the switch ⑥ (in the clock mode) for 0.6 ~ 1 seconds until the hour display blink.
  • Page 21 CLOCK ADJUSTMENT Mode Switch Push it for Adjustment Clock Select ( ⑥ ) 0.6 ~ 1 seconds Clock mode → Hour reset mode Hour Mode ( ⑤ ) 0.6 ~ 1 seconds Increase the hour of clock reset mode Select ( ⑥ ) 0.6 ~ 1 seconds Hour reset mode →...

  • Page 22: Left Handle Switches

    ⑦ ⑦ SPEEDOMETER LEFT HANDLE SWITCHES � � � � � ① ① CLUTCH LEVER The clutch lever is used for disengaging the drive to the rear wheel when starting the engine or shifting the transmission gear. Squeezing the lever disengages the clutch.

  • Page 23: Right Handle Switches

    ④ ④ TURN SIGNAL SWITCH RIGHT HANDLE SWITCHES Using when left, right turn or change direction. � � ■ “ “ � � ” ” Position : Flash the left turn signal lamp and turn signal indicator lamp. ■ “ “ � � ”...

  • Page 24: Carburetor Choke Lever

    ③ ③ THROTTLE GRIP CARBURETOR CHOKE LEVER Engine speed is controlled by position of the throttle grip. Turn it toward you to increase engine speed. Turn it away from you to decrease the engine speed. WARNING Avoid turning the throttle grip during brakes.

  • Page 25: Fuel Cock

    ◉ ◉ “ “ RES” ” (RESERVE) Position FUEL COCK If the fuel level in the tank is too low, turn the lever to the “RES”position to use the 1.5ℓ of reserve fuel supply. is equipped with a manually operated fuel cock. There are three position：...

  • Page 26: Rear Brake Pedal

    REAR BRAKE PEDAL GEARSHIFT LEVER Depressing the rear brake pedal will apply the rear brake. The brake lamp will be illuminated when the rear brake is operated. WARNING Apply the brake lightly and with great care on slippery surfaces to avoid skidding.

  • Page 27: Stand

    Reduce the motorcycle speed before STAND down-shifting. When down-shifting, the engine speed should be increased before the clutch is engaged. This will prevent unnecessary wear on the drive train components and the rear tire. CAUTION � When the transmission is in neutral the green indicator lamp on the instrument panel will be lit.

  • Page 28: Seat Lock

    SEAT LOCK REAR SUSPENSION To separate the seat, loosen two bolts To adjust the spring pre-load, turn the that are united the rear fender and the adjuster clockwise or counter-clockwise to frame below the seat. the desired position with the clamp wrench. When assemble the seat, put up the seat Position 1 provides the softest spring pre- at the frame and unite two bolts.

  • Page 29: Supply Of Gasoline And Engine Oil

    WARNING SUPPLY OF GASOLINE AND ENGINE OIL Gasoline is extremely flammable and toxic. Always observe the following precautions when refueling your GASOLINE 『 『 ● ● Never permit motorcycle refueling by anyone other than an adult. ● ● Refuel in a well ventilated area. ●...
  • Page 30 CAUTION ENGINE OIL Never operate the motorcycle if the Long engine life depends much on the engine oil level is below the “ “ Lower line selection of quality oil and the periodic mark (L)” ” in the engine oil level lens. changing of the oil.
  • Page 31 CAUTION Ａ More frequent servicing may be performed on motorcycles that are used ① ① under severe conditions, inspect ② ② Amount of Engine oil, Pollution degree of Engine oil before riding the motorcycle and then supplement and replace at any time to prevent damage of the engine.
  • Page 32 Use new “O-ring” each time the engine oil filter element is When install the oil filter, necessarily, replaced. “ “ HYOSUNG ” ” character and 8. Replace the oil filter cap ⑥ and tighten “ “ 16510H05240” ” part’s NO. install toward...

  • Page 33: Riding Tips

    CAUTION RIDING TIPS In case of the engine oil pouring excessively, the engine output being STARTING THE ENGINE made insufficient. Be careful not to pour engine oil Before attempting to excessively. start the engine make sure : 10. Install the engine oil filler cap. 1.

  • Page 34: Starting Off

    WARNING STARTING OFF Running the engine indoors or in a garage can be hazardous. WARNING Exhaust gas contains carbon monoxide, a gas that is colorless and odorless can Riding this motorcycle at excessive cause death or severe injury. speed increases your chances of losing Only run the engine outdoors where control of the motorcycle.

  • Page 35: Using The Transmission

    After moving the side stand to the fully USING THE TRANSMISSION upper position, pull the clutch lever in and pause momentarily. Engage first gear by depressing the gearshift lever downward. The transmission is provided to keep the Turn the throttle grip toward you and at engine operating smoothly in its normal the same time release the clutch lever operating speed range.

  • Page 36: Riding On Hills

    RIDING ON HILLS STOPPING AND PARKING When climbing steep hills, the motorcycle 1. Turn the throttle grip away from you to may begin to slow down and show lack of close the throttle completely. power. At this point you should shift to a 2.
  • Page 37 This safe device is returned by itself. and performance from your new Hyosung. Push the side stand until it in contact The following guidelines explain proper with the ground.
  • Page 38 ★ ★ BREAKING IN THE NEW TIRES Timely performance of the 1,000km (600miles) service will ensure optimum New tires need proper break-in to assure service life and performance from the maximum performance, just as the engine engine. does. Wear in the tread surface by gradually increasing your cornering lean angles over CAUTION the first 160km (100miles) before...
  • Page 39 ● No damage lever INSPECTION BEFORE Gearshift lever ● Smooth operation RIDING ● Proper tension Drive ● Adequate lubrication chain Before riding the motorcycle, be sure to ● No excessive wear or damage check the follwing item. Smooth movement Suspension Inspect every day once them before riding Engine stop Correct function...

  • Page 40: Periodic Maintenance

    Your Hyosung dealer can provide you with further guidelines. Steering components, suspensions and require very special and careful servicing. For maximum safety we suggest that you...
  • Page 41 ① ⑤ Clutch lever holder Speedometer gear box ② ⑥ Passenger footrests pivot Front brake lever holder ③ ⑦ Drive chain Throttle cable ④ ⑧ Side stand pivot and spring hook Rear brake pedal pivot - Motor oil - Grease...
  • Page 42 Front forks ★ ★ ─ ─ Rear shock absorber ★ ★ Inspect ─ Tighten Tighten Chassis nuts and bolts ★ ★ N O T E ★ ★ = Ask your Hyosung dealer or qualified mechanic to do the maintenance items marked.
  • Page 43 If you are not sure how to intervals, consult your Hyosung do any of the jobs, ask your Hyosung dealer or a qualified mechanic. dealer or a qualified mechanic to do the maintenance.

  • Page 44: Inspection And Repair

    INSPECTION AND REPAIR ENGINE OIL Check if there is leakage from crankcase, TOOL oil hose. To assist you in the performance of periodic maintenance, a tool kit is supplied and is located under the seat. GASOLINE The tool kit consists of the following items. Check if there is leakage from fuel tank, NAME fule cock, hose, carburetor.
  • Page 45 FRONT FORK BATTERY ◉ ◉ INSPECTION OF BATTERY SOLUTION ● Check if there is any noise by bend of front fork while moving the handle LEVEL upward and downward. MF(Maintenance Free) battery of airtight ● Inspect whether the steering stem is type is used for this motorcycle.
  • Page 46 ◉ ◉ CLEAN OF BATTERY TERMINAL CAUTION Clean the battery terminal when it is dusty or rusted. ● ● Hydrogen gas produced by 1. Set the ignition switch “OFF” position. batteries can be hazardous. 2. Remove the right side cover, disconnect Batteries produce flammable the negative (-) battery wire first, then hydrogen gas which can explode if...
  • Page 47 : do not twist or wring the element or it will develop tears. 6. Immerse the element in HYOSUNG genuine oil � and squeeze the oil out of the element leaving it slightly wet with oil.
  • Page 48 CAUTION SPARK PLUG Before and during the cleaning operation, inspect the element for tears. A torn element must be replaced. Be sure position the element snugly and correctly, so that no incoming air will bypass it. Remember, rapid wear of piston rings and cylinder bore is often caused by a defective or poorly fitted element.
  • Page 49 If the spark plug color indicates that other than a ◉ ◉ IDLING SPEED standard spark plug be used, it is best to consult your Hyosung dealer � before selecting an alternate plug or heat range. The selection of an improper spark plug can lead to severe engine damage.
  • Page 50 ◉ ◉ THROTTLE CABLE ADJUSTMENT CLUTCH ADJUSTMENT At each maintenance interval, adjust the clutch cable play by means of clutch cable adjuster. The cable play should be 4 mm (0.16 in) as measured at the clutch lever holder before the clutch begins to disengage. �...
  • Page 51 If you find something wrong with the drive chain condition or adjustment, correct the problem if you know how. If necessary, consult your authorized Hyosung dealer. Damage to the drive chain means that the sprockets may also be damaged. Inspect the sprockets for the following : ●...
  • Page 52 After aligning and adjusting the slack in If you find any of these problems with your the drive chain to 20 ~ 30 mm (0.79 ~ sprocket, consult your Hyosung dealer. 1.18 in), retighten the axle nut securely and perform a final inspection.
  • Page 53 ◉ ◉ DRIVE CHAIN CLEANING AND 2. After thoroughly washing the chain and allowing it to dry, then lubricate the links OILING with Hyosung chain lube or an Clean and oil the chain periodically, as equivalent. follows : 1. Wash the chain with kerosene.
  • Page 54 Hyosung’s requirements. severely. Never use any brake fluid that has been stored in a used or unsealed container.
  • Page 55 Hyosung dealer for Hyosung dealer or qualified service safety operating at high pressure. mechanic.
  • Page 56 ● ● FRONT BRAKE FLUID SUPPLY ◉ ◉ REAR BRAKE 1. Place the motorcycle on a level surface ● ● REAR BRAKE ADJUSTMENT and keep the handlebars straight. 2. Clean the brake fluid reservior around not WARNING to allow dust to get inside of it. 3.
  • Page 57 ③ If the extension line is beyond the range, have the brake shoe assembly replaced by your Hyosung dealer to ensure safe operation. WARNING Riding with worn brake shoe will reduce braking performance and will increase your chance of having an accident.
  • Page 58 ◉ ◉ TIRE PRESSURE TIRE Insufficient air pressure in the tires not only hasten tire wear but also seriously affects the stability of the motorcycle. Inspect the tire pressure and the tire Under-inflated tires make smooth thread depth periodically. cornering difficult and over-inflated tires Inspect frequently the tire pressure for the decrease the amount of tire in contact with safety and the tire life.
  • Page 59 The use of a tire other than standard may cause trouble. It is highly recommended to use the standard tire supplied by Hyosung. ◉ ◉ CRACKS AND CUTS Operating the motorcycle with excessively worn tire will decrease riding stability and Check if can lead to loss of control.
  • Page 60 ◉ ◉ SPOKE NIPPLE REPLACEMENT OF THE LAMP Inspect the spoke nipple for loosening and retighten the spoke nipple in case of loosening. Requirement electric power of the lamp shown in the following chart. WARNING When replace the damaged lamp, always use the equal capacity.
  • Page 61 ◉ ◉ HEAD LAMP ◉ ◉ TURN SIGNAL LAMP � 1. Remove the lens by removing the screw. 1. Remove the two screw ① (right and left) 2. Push the bulb, turn it to the counter- and the head lamp assembly. clockwise, and pull it out.
  • Page 62 Never use other than specified 15A fuse. Installing a fuse of incorrect rating may seriously damage the electrical system. You should consult your Hyosung dealer or a qualified service mechanic immediately. 3. Push in the bulb, turn it to the counter- clock wise and pull it out.
  • Page 63 ④ If it has been determined that fuel is ④ If there is still no spark, consult your reaching the carburetor, the ignition Hyosung dealer for repairs. system should be checked next. WARNING CAUTION Performing the spark test improperly Do not allow the fuel to spill.
  • Page 64 ● ● Engine Stalling ① Check the fuel supply in the fuel tank. ② Check the ignition system for intermittent spark. ③ Check the engine idle speed. CAUTION When occur any trouble, the best way is to consult your Hyosung dealer for repairs.
  • Page 65 ★ ★ WASHING YOUR motorcycle CLEANING PROCEDURE With some care, your motorcycle can be washed in a similar manner to washing an A thorough cleaning of your motorcycle is automobile. a necessary part of maintenance and will help keep your motorcycle looking and N O T E performing its best.
  • Page 66 ★ ★ INSPECTION AFTER CLEANING Remove the rags or wrapping from the exhaust pipe. For extended life of your motorcycle, lubricate according to “GENERAL LUBRICATION” section. WARNING Operating motorcycle with wet brakes can be hazardous. Wet brakes may not provide as much stopping power as dry brakes.
  • Page 67 L A B E L � � �...
  • Page 68 � � �...

  • Page 69: Specifications

    SPECIFICATIONS DIMENSIONS AND DRY MASS 2,085 mm ( 82.1 in ) Overall length 840 mm ( 33.1 in ) Overall width 1,125 mm ( 44.3 in ) Overall height 1,350 mm ( 53.2 in ) Wheelbase 230 mm ( 9.1 in ) Ground clearance 135 kg ( 298 lbs ) Mass...
  • Page 70 CHASSIS Front suspension Telescopic type Rear suspension swing arm type Caster 25。 Trail 84 mm ( 3.31 in ) Steering angle 47。 ( right & left ) Front tire size 130/80-18M/C 66P Rear tire size 180/80-14M/C 78P Front brake Disk Rear brake Drum ELECTRICAL...
  • Page 71 MEMO...
  • Page 72 MEMO...
  • Page 73 Prepared by 1st Ed. APR. 2007. Printed in KOREA...

Table of Contents

Save PDF