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General| Displacement | 124.6 cc |
|---|---|
| Front Suspension | Telescopic Fork |
| Front Brake | Disc |
| Rear Brake | Disc |
| Engine Type | Single Cylinder, 4-Stroke |
| Transmission | CVT |
| Fuel System | EFI |
| Cooling | Air Cooled |
| Rear Suspension | Dual shock absorbers |
Essential guidelines and precautions before performing maintenance or disassembly.
Identifies key labels and their locations on the vehicle body.
Detailed technical specifications for the D350 model.
Specifications and details for the battery and charging system.
Description of lamps, speedometer, and switches.
Table of standard tightening torques for various bolts and nuts.
Diagrams showing the routing of cables, pipes, and electrical devices.
Diagram and description of the throttle cable routing.
Diagram showing brake pump and hose routing.
Diagrams illustrating brake calipers, hoses, and speed sensors for D350 and D125.
Diagram showing the layout of brake system components for D350.
Details on the fuel evaporation system for D350 and D125.
Diagrams showing cooling system components for D350 and D125.
Diagram showing the electrical device layout for D350.
Diagrams of the intake and exhaust systems for D350.
Illustrations of various tools used for maintenance and repair.
Step-by-step guide for swelling nail disassembly and assembly.
Essential guidelines and precautions before performing maintenance or disassembly.
Maintenance schedule with intervals and actions for D350.
Maintenance schedule with intervals and actions for D125.
Procedure for replacing the air filter element and air inlet filter for D350.
Procedure for replacing the air filter element and air inlet filter for D125.
Instructions for checking muffler bolts and nuts for leaks.
Steps for disassembling and removing the spark plug for the D350 model.
Steps for checking and verifying the spark plug for the D125 model.
Procedures for draining, replacing filter, and adding engine oil for D350.
Procedures for draining, replacing filter, and adding engine oil for D125.
Instructions for cleaning carbon deposits on the D350 throttle body.
Instructions for cleaning carbon deposits on the D125 throttle body.
Inspection and adjustment procedures for the throttle cable.
Procedures for checking engine idle speed for D350 and D125.
Details on the fuel evaporative pollutant control system for D350.
Procedures for checking and adding coolant to the radiator and expansion tank.
Instructions for checking coolant water pipes for leaks and aging for D350.
Procedures for checking fuel pipes for leaks and replacing high-pressure oil pipes.
Steps for measuring fuel pressure using an oil pressure gauge for D350 and D125.
Troubleshooting steps for abnormal fuel pressure issues.
General information and cautions regarding the braking system.
Procedures for checking brake components, discs, and pads.
How to check and replace front and rear brake switches.
Steps for lubricating movable parts of the brake handle.
Procedure for replacing the brake handle and adjusting it.
Safety precautions and steps for replacing front brake pads for D350.
Steps for replacing front brake pads for D125.
Procedure for replacing rear brake pads.
Common reasons for abnormal noise from brake pads.
Safety precautions and recommendations before replacing brake discs.
Reference to front fork assembly for front brake disc replacement.
Steps for replacing the rear brake disc for D350 and D125.
Inspection and replacement recommendations for brake hoses.
Cautions and procedures for adding and replacing brake fluid.
Detailed steps for replacing front brake fluid.
Steps for replacing rear brake fluid.
Procedure for bleeding air from the brake system.
Precautions and checks for tire condition and pressure before driving.
Instructions for checking tire wear, damage, and pressure.
Procedures for replacing front and rear tires.
Maintenance checks and precautions for the steering mechanism.
Steps for adjusting steering mechanism clearance for D350.
Steps for adjusting steering mechanism clearance for D125.
Procedures for maintaining steering bearings if clearance adjustment fails.
Troubleshooting common steering mechanism malfunctions.
Cautions and checks for front fork condition and performance.
How to check front shock absorber performance and identify issues.
Reference to front fork assembly for removing front shock absorbers.
Steps for correcting front fork tube deformation.
Troubleshooting steps for shock absorber issues.
Cautions and checks for rear shock absorbers.
Procedures for checking the condition and function of rear shock absorbers.
Instructions for adjusting rear shock absorber preload.
Steps for disassembling and replacing shock absorbers for D125 and D350.
Checks for critical fasteners on the body and engine.
Specific torque values for engine cradle nuts for D350 and D125.
Cautions and checks for the side bracket and its spring.
Steps for lubricating the side bracket.
Cautions and checks for the main bracket, its spring, and components.
Procedures for lubricating and installing the main bracket.
Checks for normal operation of lights, horn, and electrical switches.
Procedures for adjusting headlight height for safe driving.
Identification and function of fuses in the fuse box.
Flowcharts for diagnosing issues with right-hand switches.
Procedures for checking and troubleshooting the horn.
Troubleshooting flow chart for left-hand switch functions.
General troubleshooting process for vehicle lights.
Troubleshooting abnormal windshield lifting and falling.
Essential knowledge and precautions for working with the EFI system.
Methods for reading fault codes through the meter or diagnostic tool.
Diagrams showing the layout of EFI system components for D350 and D125.
Troubleshooting procedures for EFI components, starting with the dump switch.
Information on the OBD port for diagnostic tool connection.
Cautions and checks for abnormal fuel pump performance.
Procedure for checking the carbon canister solenoid valve.
Identification and testing of EFI relays.
Procedures for checking and testing the fuel injector.
Diagnosis and checks for ignition coil faults.
Common failure phenomena and troubleshooting process for the throttle valve body.
Procedures for checking throttle position and air temperature sensors.
Checks and replacement for the water and oil shared sensor.
Procedures for checking and replacing the oxygen sensor.
Method for checking ECU normality by replacement.
Checks for the crankshaft position sensor and magneto stator.
Diagnostic flow chart for engine start issues without fault indicators.
Diagnostic flow chart for engine start issues with symptoms.
Diagnostic flow chart for poor acceleration issues.
Diagnostic flow chart for high idling speed on a hot engine.
Diagnostic flow chart for unsteady idle speed on a cold engine.
Diagnostic flow chart for unstable idling and stalling.
Flow chart for troubleshooting when the EFI failure light is always on.
Wiring diagram for the EFI system.
Essential knowledge and precautions for working with the ignition system.
Steps for diagnosing ignition system issues, focusing on spark plug problems.
Diagrams showing the layout of ignition system components.
Wiring diagram for the ignition system.
Procedures for inspecting the ignition system, including spark plugs and coils.
Information on ignition timing, noting it's preset and requires factory adjustment.
Essential knowledge and precautions for working with the starting system.
Troubleshooting flow chart for starter motor issues.
Troubleshooting steps for starter motor operation.
Diagram showing the layout of ignition system components.
Wiring diagram for the starting system.
Cautions and procedures for removing and disassembling the starter motor.
Detailed steps for disassembling the starter motor assembly.
Inspection of starter motor components like front cover and back cover.
Procedures for checking the operation, coil, and ground wire of the starting relay.
Steps for disassembling and assembling the starting relay.
Essential knowledge and precautions for working with the fuel supply system.
Cautions and steps for removing the fuel tank assembly.
Procedures for disassembling the fuel tank assembly.
Steps for removing and disassembling the fuel pump.
Procedure for removing and inspecting the oil level sensor.
Steps for removing external parts of the fuel tank assembly.
Methods for inspecting the fuel pump and its relay.
Procedure for checking the oil level sensor resistance and float.
Essential knowledge and precautions for working with the cooling system.
Common issues related to engine temperature and coolant leakage.
Diagrams illustrating coolant system layouts for D350 and D125.
Diagrams showing the coolant flow paths for D350.
Cautions and procedures for disassembling the cooling system.
Steps for removing the radiator assembly for the D125 model.
Steps for removing the radiator assembly for the D350 model.
Diagram showing the routing of coolant pipes and clamps for D350.
Diagram and steps for removing the thermostat assembly and small loop for D350.
Testing and inspection procedures for cooling system accessories.
Checks and procedures related to the D350 main water tank.
Specific precautions for inspecting the water tank filling port for D350.
Checks for the auxiliary water tank's air tightness and appearance.
Reference to EFI system diagnosis for the water and oil shared sensor.
Procedures for inspecting the thermostat's appearance, damage, and operation.
Common failure phenomena related to the thermostat and engine temperature.
Method for checking the thermostat assembly's seal and components.
Detailed inspection of the thermostat core's opening temperature and movement.
Inspection procedures for water pipes, checking for damage and leaks.
Inspection for leaks at the water pump cover assembly.
Essential knowledge and precautions for working with the braking system.
Common issues related to brake lever feel and troubleshooting steps.
Cautions and recommendations before disassembling brake pumps and calipers.
Steps for disassembling the front disc brake main pump.
Procedure for disassembling the rear disc brake main pump.
Steps for disassembling the front disc brake caliper for D350.
Steps for disassembling the front disc brake caliper for D125.
Procedure for disassembling the rear disc brake caliper.
Checking the gap between the wheel speed sensor and ABS ring gear.
Cautions and steps for removing brake hoses and speed sensors.
Procedures for releasing brake fluid from the system.
Procedures for removing and inspecting FC-HU hose and front wheel speed sensor.
Procedures for removing and inspecting RC-HU hose and rear wheel speed sensor.
Diagram showing the ABS system components and layout.
Cautions and steps for disassembling the ABS hydraulic control unit.
Diagnostic flow charts for troubleshooting ABS system faults.
Essential knowledge and precautions for working with the battery and charging system.
Troubleshooting process for battery damage or attenuation issues.
Diagram illustrating the charging system components.
Wiring diagram for the charging system.
Steps for disassembling and checking the battery.
Procedures for testing leakage and charging voltage.
Steps for inspecting the magneto stator charging coil.
Essential knowledge and precautions for front fork assembly and disassembly.
Exploded view of front fork components for D350.
Exploded view of front fork components for D125.
Exploded view of D350 front fork components with torque values.
Exploded view of D125 front fork components with torque values.
Exploded view of the lower link board assembly for D350.
Exploded view of the lower link board assembly for D125.
Handle removal precautions regarding brake fluid and wiring.
Steps for removing the handle and associated components.
Procedures for removing handle switches and brake system components.
Steps for installing the direction component and handle switches.
Procedures for installing the direction handle cover.
Steps for removing the front wheel assembly.
Steps for installing the front wheel assembly.
Exploded view of the front wheel assembly for D350 and D125.
Inspection and maintenance of disc brakes, oil seals, bearings, rims, and tires.
Steps for disassembling the front wheel and fender assembly for D350.
Procedures for removing the front shock absorbers.
Steps for reinstalling shock absorbers, fender, and front wheel.
Steps for disassembling the front wheel and fender for D125.
Procedures for removing front shock absorbers for D125.
Preliminary steps for disassembling parts related to the lower link board.
Steps for removing the faucet lock.
Procedures for removing the direction pad for D350.
Steps for removing the lower link board assembly.
Procedures for installing the lower link board assembly for D350.
Procedures for installing the lower link board assembly for D125.
Instructions for installing other disassembled components.
General cautions for engine disassembly and related parts.
Steps for disassembling the storage box.
Procedures for removing vehicle covers, including tail skirt and rear armrest.
Steps for draining coolant and removing connection plugs.
Procedures for unplugging various electrical connectors on the engine.
Steps for removing stepper motor and sensor plugs on the throttle valve body.
Procedures for unplugging fuel pipe and injector connectors.
Steps for unplugging crankshaft position and oxygen sensor connectors.
Procedure for unplugging the magneto stator charging cable.
Removing the starter motor and its negative wire.
Reference to muffler removal steps.
Procedures for disassembling the engine for D350.
Procedures for disassembling the engine for D125.
Steps for installing the engine for the D350 model.
Steps for installing the engine for the D125 model.
General cautions for panel disassembly and assembly.
Steps for removing the windshield and its decorative covers.
Steps for removing the front sun visor.
Procedures for removing the front cover and front panel.
Steps for disassembling left and right side covers.
Steps for disassembling the seat cushion.
Steps for disassembling the storage box.
Procedures for disassembling fuel tank covers.
Steps for removing front left and right panels.
Steps for disassembling the speedometer panel.
Steps for removing the bottom lining of front panels.
Steps for disassembling headlights.
Steps for removing the windshield base assembly.
Procedures for disassembling the middle fuel tank cover.
Steps for removing pedals and surrounding parts.
Steps for disassembling the surrounding bottom panel.
Steps for removing the surrounding middle part.
Steps for removing the radiator deflector.
Steps for disassembling the rear hand rest.
Steps for removing the tail skirt and tail lamp.
Steps for removing the rear mud flap.
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