KSR GRS 125 User Manual

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USER MANUAL

mod.#

U 14

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Troubleshooting

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Dexter Cook

August 13, 2025

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Summary of Contents for KSR GRS 125

Page 1 USER MANUAL mod.# U 14...
Page 2: Introduction
INTRODUCTION Thanks for your purchasing of this vehicle. This model is designed for safety, built for durability, and perfected for daily street use. The unique vehicle design, enrich of stylish and peronality, represents your outstanding taste and favor to pursue the state of the art living attitude. This manual describes the correct usage of this motorcycle including safety riding, simple inspection methods and so on.
Page 3: Important Manual Information
IMPORTANT MANUAL INFORMATION In this manual with some important information is distinguished by the following notations: WARNING It is WARNING instructions that need to follow, failure of follow coulnd be end in result severe injuiry or lead to death to the operator. CAUTION A CAUTION indicates with special precautions to avoid damage to the vehicle.
Page 4 IMPORTANT MANUAL INFORMATION Dealer label here...
Page 5: Table Of Contents
TABLE OF CONTENTS INTRODUCTION OPERATION AND IMPORTANT Throttle grip and cable Lubricating the brake lever and brake IMPORTANT MANUAL INFORMATION RIDING POINTS pedal Starting the engine TABLE OF CONTENTS Front fork Starting off SAFETY INFORMATION Steering Shifting and riding Other safe-riding points Wheel bearings Acceleration and deceleration Location of label...
Page 6: Safety Information
SAFETY INFORMATION THIS VEHICLE ARE TWO WHEEL Safe riding • Never lend your vehicle to oththers who not qualified for riding SINGLE TRACK VEHICLES. THE • Always pre-check your vehicle befo- USE OF SAVETY AND OPERATION re riding is key point to prevent an •...
Page 7 SAFETY INFORMATION • The wear of proper jacket, shoes, fluence on the steering & balance. It • Make sure that accessories and groves etc., can be better protection, may cause possibility of an accident, cargo are securely attached to ve- reducing the degree of injuiry from please extremely caution and follow hicle before riding...
Page 8: Other Safe-Riding Points
SAFETY INFORMATION • Accessories on the handle bar/front • Take care not to spill any gasoli- • Do not lay your vehicle to near suspension area will cause bad influ- ne on the engine (hot) or exhaust flammable place. ence on steering the vehicle. if you system when refueling.
Page 9: Location Of Label
SAFETY INFORMATION LOCATION OF LABEL 1. Label, anti-tampering Symbol image...
Page 10: Description Of The Vehicle
DESCRIPTION OF THE VEHICLE SIDE VIEW - LEFT 1. Front wheel 2. Front disc brake 3. Headlight 4. Front turn signal light 5. Fuel tank cap 6. Air filter 7. Side stand 8. Pedal 9. Seat 10. Rear wheel 11. Tail light / brake light 12.
Page 11: Side View - Right
DESCRIPTION OF THE VEHICLE SIDE VIEW - RIGHT 14. Rear disc brake 15. Muffler 16. Battery 17. Main stand 18. Engine oil cap 19. Spark plug...
Page 12: Controls And Instruments
DESCRIPTION OF THE VEHICLE CONTROLS AND INSTRUMENTS 20. Left handlebar switches 21. Clutch lever 22. Clutch pedal 23. Dashboard unit 24. Brake lever 25. Throttle grip 26. Brake pedal 27. Right handlebar switches...
Page 13: Main Switch
INSTRUMENT AND CONTROL FUNCTIONS MAIN SWITCH DASHBOARD UNIT Steering lock The steering is locked, and all electri- cal systems are off. The key can be removed. Lock the steering 1. Turn the handlebars all the way to the left. 2. Push the key in and turn it to the position while still pushing it.
Page 14: Handlebar Switches - Left
INSTRUMENT AND CONTROL FUNCTIONS Function button 1 Turn signal indicator lamp right When the needle reaches “E”, refuel as The relevant indicator lamp flashes When you press this button you can soon as possible. shift from total meter to trip meter. whenever you switch the turn signal CAUTION switch to the right.
Page 15: Handlebar Switches - Right
INSTRUMENT AND CONTROL FUNCTIONS 3. Choke lever Turn signal switch Starter switch 4. High/Low beam switch To signal a right-hand turn, push this Pull the clutch lever in and press the 5. Turn signal switch switch to . To signal a left-hand turn, electric starter switch to start the push this switch to...
Page 16: Brake Lever
INSTRUMENT AND CONTROL FUNCTIONS BRAKE PEDAL Warning light switch By changing the switch position you can switch on or off the warning light. BRAKE LEVER Before commissioning, familiarize The brake pedal (1) is located on the yourself with the handling of such a right-hand side of the vehicle and ope- transmission, otherwise serious dama- ge and or injuries could be provoked.
Page 17: Fuel Tank Cap
INSTRUMENT AND CONTROL FUNCTIONS Open the fuel tank cap (1) FUEL Fold up the lock cover (2). Insert the ig- nition key into the lock (3) and turn it a quarter turn clockwise. The closure cap can be unlocked and opened rearward. Close the fuel tank cap (1) In reverse order.
Page 18: Catalytic Converter
INSTRUMENT AND CONTROL FUNCTIONS • Use only unleaded gasoline. The use of leaded gasoline will cause Regular unleaded gasoline only. unrepairable damage to the catalytic Recommended fuel: 95 oct converter. 17 l +/- 0.5 l • Never park the vehicle near possible fire hazards such as grass or other !!CAUTION!! materials that easily burn.
Page 19: Owner's Tool Kit
INSTRUMENT AND CONTROL FUNCTIONS To close the seat (2) SIDE STAND MAIN STAND Fold down the seat and press it direct- ly over the lock with the palm of your hand into it. CAUTION • When you close the seat by force or strike, parts can be damaged.
Page 20: Pre-Operation Checks
PRE-OPERATION CHECKS The condition of a vehicle is the owner’s responsibility. The operator should check the vehicle by simple but thorough inspection,to make sure of vehicle condition, quick inspect some key and important parts, to prevent the vehicle from seri- ous consquence/accident.
Page 21: Pre-Operation Check List
PRE-OPERATION CHECKS PRE-OPERATION CHECK LIST CHECKPOINT TO VERIFY Fuel • Check fuel level in fuel tank. • Refuel if necessary. • Check fuel line for leakage. Engine oil • Check oil level in oil tank. If necessary, add recommended oil to specified level. •...
Page 22: Operation And Important Riding Points
OPERATION AND IMPORTANT RIDING POINTS STARTING THE ENGINE WARNING CAUTION The engine starts immediately upon • Before riding the vehicle, please CAUTION make sure that you are fully fimi- actuation of the starter, then wait a few Note the point „Engine break in“ before seconds before you try to start it again.
Page 23: Acceleration And Deceleration
OPERATION AND IMPORTANT RIDING POINTS b) Shifting gears downwards • Therefore slow down when approa- 1. Release the throttle ching such areas and cross them 2. Operate the brakes and reduce the with caution. speed to a appropriate speed. 3. Pull the clutch lever 4.
Page 24: Engine Break In
OPERATION AND IMPORTANT RIDING POINTS 5. After the vehicle is stopped turn off ENGINE BREAK IN • Gearbox oil must be changed once the first 1000 km are covered. Use the ignition. During the first 1000 km do not ride 6.
Page 25 OPERATION AND IMPORTANT RIDING POINTS The vehicle must have a suitable run-in period, during which the following pre- cautions must be considered: • After starting the engine, warm it up progressively, without maximum ac- celeration (we recommend not to ex- ceed 3/4 of the throttle grip opening for 1st gear) or overcharge.
Page 26: Periodic Maintenance And Minor Repair
PERIODIC MAINTENANCE AND MINOR REPAIR maintenance and minor repairs. How- plug should be removed and checked CAUTION ever, additional tools such as a torque in accordance with the periodic main- Most of the Safety and condition of ve- wrench may be necessary to perform tenance and lubrication chart.
Page 27 PERIODIC MAINTENANCE AND MINOR REPAIR tan (the ideal color when the vehicle 6. Install the spark plug with the spark is ridden normally). plug wrench, and then tighten it to the specified torque. Spark plug gap: 0,6 - 0,7 mm Specified spark plug: NGK - DR8EA CAUTION...
Page 28: Engine Oil
PERIODIC MAINTENANCE AND MINOR REPAIR ENGINE OIL PETROL FILTER The petrol filter (1) is located directly Use a high-quality engine oil and change it regularly to extend the life next to the petrol tap underneath the fuel tank. Handling the petrol filter is of your engine.
Page 29: Carburetor
PERIODIC MAINTENANCE AND MINOR REPAIR 7. Mount the air filter housing. The air cleaner is located on the right- • If necessary, have the air cleaner hand side of the vehicle behind the 8. Mount the side cover exchanged by the specialist dealer. side cover (1).
Page 30: Throttle Cable Free Play
PERIODIC MAINTENANCE AND MINOR REPAIR THROTTLE CABLE FREE PLAY CLUTCH ADJUSTMENT The throttle cable free play (1) should 1. Loosen the locknut (1) measure 1.5 ~ 3.5 mm at the thrott- 2. Turn the adjusting bolt (2) and the le grip. Periodically check the throttle adjusting nut (3) in or out to meet cable free play and, if necessary, have a dealer adjust it.
Page 31 PERIODIC MAINTENANCE AND MINOR REPAIR Tire air pressure and may could cause damge or even Tire inspection The tire air pressure should be che- lead to accident. cked and, if necessary, adjusted before Allocation of your cargo and weight of each ride.
Page 32: Rims
PERIODIC MAINTENANCE AND MINOR REPAIR • The wheel should be balanced whe- CAUTION never either the tire or wheel has The tread depth may vary depending DIMENSIONS TIRE / RIMS been changed or replaced. An un- on country. Observe local regulations. balanced wheel can result in poor The values listed here are technical va- Front: Rim: 17x2.5...
Page 33: Brake Pads
PERIODIC MAINTENANCE AND MINOR REPAIR motorcycle. Air in the hydraulic system Brake padel free play BRAKE PADS 1. Loosen the locknut (1) will diminish the braking performance, 2. Turn the adjusting bolt (2) until the le- which may result in loss of control and The brake pads must be checked for ver position is within specified positi- wear at the intervals specified in the...
Page 34: Brake Fluid
PERIODIC MAINTENANCE AND MINOR REPAIR Chaning the brake fluid BRAKE FLUID master cylinder is level by turning the handlebars. Use only the recommen- WARNING WARNING ded quality brake fluid, otherwise the Insufficient brake fluid may allow air to Have a dealer change the brake fluid rubber seals may deteriorate, causing at the intervals specified in the NOTE enter the brake system, possibly...
Page 35: Throttle Grip And Cable
PERIODIC MAINTENANCE AND MINOR REPAIR place damaged cables as soon as pos- FRONT FORK sible to prevent unsafe conditions. The condition and operation of the front fork must be checked as follows at the intervals specified in the periodic main- THROTTLE GRIP AND CABLE tenance and lubrication chart.
Page 36: Wheel Bearings
PERIODIC MAINTENANCE AND MINOR REPAIR follows at the intervals specified in the WHEEL BEARINGS If the chain tension is too great, parts periodic maintenance and lubrication within the secondary power trasmission (chain, chain sprockets transmission chart. The front and rear wheel bearings must be checked at the intervals specified in and rear wheel bearings) will be sub- jected to unnecessary stress resulting...
Page 37: Shock Absorber
PERIODIC MAINTENANCE AND MINOR REPAIR Adjust the shock absorber WARNING Use the nuts (1) and (2) to adjust the • Do not remove the battery vent seal, rear shock. Loosen the locknut (1) and this can be dangerous, the battery adjust with the help of the nut (2) to ad- permanently damaged.
Page 38: Fuse
PERIODIC MAINTENANCE AND MINOR REPAIR • KEEP THIS AND ALL BATTERIES WARNING WARNING OUT OF THE REACH OF CHILD- Please contact your dealer if you are Do not use a fuse of a higher am- REN. not familiar with handling the battery. perage rating than recommended to avoid causing extensive damage to To charge the battery...
Page 39 PERIODIC MAINTENANCE AND MINOR REPAIR Front turn signal light Rear turn signal light If the turn signal light bulb (1) does not If the turn signal light bulb (1) does not com on, please contact your dealer to com on, please contact your dealer to replace it.
Page 40 PERIODIC MAINTENANCE AND MINOR REPAIR Taillight / Brake light lamp License plate lamp If the tail/brake light (1) do not glow, If the license plate light (1) do not glow, please contact your dealer to replace it. disassemble the bolts for changing the bulb.
Page 41: Troubleshooting
TROUBLESHOOTING TROUBLESHOOTING Although the vehicles receive a thorough inspection before shipment from the factory, trouble may occur during operation. Any problem in the fuel, compression, or ignition systems, for example, can cause poor starting and loss of power. The following troubleshooting chart represents a quick and easy procedure for checking these vital systems yourself. However, should your vehicle require any repair, take it to a dealer, whose skilled technicians have the necessary tools, experience, and knowhow to service the vehicle properly.
Page 42: Troubleshooting Chart
TROUBLESHOOTING TROUBLESHOOTING CHART WARNUNG Keep away open flames and do not smoke while checking or working on the fuel system. 1. Fuel Operate the electric Check the compression. Check the fuel level in starter. The engine does not start. the fuel tank. Supply fuel.
Page 43: Clean And Storage
CLEAN AND STORAGE CLEAN THE VEHICLE of the vehicle to prevent damage. Cleaning after riding in the rain, Dry the plastic parts then wipe with a near the sea or on salt-sprayed Clean of the vehicle in proper and sui- soft, dry cloth or sponge.
Page 44: Storage
CLEAN AND STORAGE WARNING WARNING Recommended Castrol care pro- To prevent damage or injury from spar- Please store the vehicle in a well air ducts: flow room with dry air if possible. A king, make sure to ground the spark place with wet humidity will cause rust.
Page 45: Specifications
SPECIFICATIONS ENGINE CARBURETOR DIMENSIONS Engine type Manufacturer 4-stroke air cooled EXACT Cylinder arrangement SPARK PLUG Manufacturer / model Forward-inclined single cylinder NGK / DR8EA Displacement Spark plug gap 125 cm³ 0,6-0,7 mm Compression ratio CLUTCH 10.6:1 Clutch type Starting system Multiple plate clutch Electric starter Lubrication system...
Page 46 SPECIFICATIONS TIRE AIR PRESSURE (COLD TIRES) REAR SUSPENSION Tail / brake light Front: 2,1 bar - 2,5 bar Type 12 V, 0.6 W / 1.32 W LED Rear: 2,1 bar - 2,5 bar Unit swing Front turn signal light Spring/shock absorber type 12 V, 7 W LED The selected tire pressure depends on the Gas/oil damper...
Page 47: Consumer Information
CONSUMER INFORMATION The vehicle identification number of the VEHICLE IDENTIFIKATION NUMBER vehicle (1) is stamped on the steering (VIN) Please write down the VIN (vehicle iden- head. tification number) to order replacement parts from your dealer or the vehicle should be stolen. CAUTION The vehicle identification number is used to identify your motorcycle and may be...
Page 48: Warranty Information
WARRANTY INFORMATION Please carefully read the instruction manual of your vehicle before operating it in order to make yourself familiar with its handling. We explicitly point out that the instruction, maintenance, and care instructions given in the operating manual have to be complied with in order to sustain your claim towards warranty.
Page 49: Maintenance Schedule
MAINTENANCE SCHEDULE The guarantee can be granted only if the vehicle has been serviced in accordance with this maintenance schedule. The inspection intervals are required, otherwise, no guarantee can be granted. 1000 km or 4.000 km or 7.000 km or 10.000 km or 13.000 km or 1.
Page 50: Service Plan
SERVICE PLAN The warranty can be granted only if the vehicle has been serviced in accordance with this service plan. 1000 km or 1. month 4000 km or 6. month Stamp / Signature Stamp / Signature 7000 km or 12. month 10000 km or 18.
Page 51: Wiring Diagram
WIRING DIAGRAM tarter switch High ea Fuel eter Rgiht turn High Lower Gears displa indicator Rear rake tart rela Power off switch urn switch indicator ea switch atter switch Left turn peedo eter Electric clock Horn switch indicator rake switch Speedometer floodlight inker switc h...
Page 52: Space For Notes
SPACE FOR NOTES...