What to do if the clearance between the rotor side and body exceeds the limit in my Sym HD 125 Motorcycle?
If the clearance between the rotor side and body exceeds the limit, reduce the clearance to within the specified limits.
General| Fuel System | Carburetor |
|---|---|
| Rear Brake | Drum |
| Front Suspension | Telescopic Fork |
| Ignition | CDI |
| Engine | 124.6 cc, 4-Stroke, Air-Cooled |
| Cooling System | Air Cooled |
| Bore x Stroke | 52.4mm x 57.8mm |
| Starting System | Electric & Kick |
Explains symbols and marks used in the manual for service procedures.
Provides essential safety precautions for operating and servicing the vehicle.
Outlines crucial guidelines and best practices for performing service operations.
Lists detailed technical specifications for the motorcycle model.
Details standard and engine-specific torque values for fasteners.
Offers diagnostic flowcharts for common engine starting and running issues.
Outlines recommended maintenance intervals and tasks for optimal performance.
Steps for checking, gapping, and installing the spark plug.
Guide for inspecting and adjusting valve clearance with specific tolerances.
Steps for checking ignition timing and related components.
Method for measuring cylinder compression pressure and interpreting results.
Overview of brake system checks, including hoses and fluid.
Procedures for checking tire pressure and thread depth.
Lists specific tools required for maintenance procedures.
Identifies common problems like low oil level, low oil pressure, and dirty oil.
Procedures for checking and changing engine oil, including torque values.
Details on oil pump removal, disassembly, inspection, and re-assembly.
Procedures for checking and changing gear oil, including torque values.
Lists common issues for poor engine start, stalling, rough idle, and misfires.
Step-by-step guide for removing the carburetor assembly.
Instructions for disassembling, checking, and cleaning the float chamber.
Procedures for removing and installing the fuel unit and fuel tank.
Detailed steps for safely removing the engine from the motorcycle frame.
Guidance on safely installing the engine back onto the frame.
Step-by-step instructions for removing the cylinder head assembly.
Guidelines for inspecting cylinder head warp, valve springs, stems, and guides.
Procedure for measuring and adjusting valve clearance using feeler gauges.
Steps for removing the cylinder from the engine block.
Detailed procedure for removing the piston pin and piston.
Procedure for installing the cylinder onto the crankcase.
Steps for removing, inspecting, and installing the drive belt and driven pulley.
Instructions for removing, inspecting, and installing the drive face and weight rollers.
Procedures for disassembling, inspecting, and replacing clutch outer/driven pulley components.
Step-by-step guide for disassembling the final drive components.
Detailed instructions for removing and installing bearings using special tools.
Steps for reassembling the final drive mechanism and tightening bolts.
Instructions for removing the flywheel using a puller.
Inspection and removal procedures for the starting clutch components.
Steps for installing the flywheel and tightening its nut.
Detailed procedure for disassembling the crankcase and removing components.
Methods for inspecting crankshaft clearances, run-out, and bearings.
Step-by-step guide for assembling the crankcase using special tools.
Flowcharts for diagnosing cooling system problems like overheating.
Procedures for checking water pump seals, removal, and mechanical seal replacement.
Instructions for removing, testing, and installing the thermostat.
Steps for removing and installing the front body cover.
Procedure for removing and installing the handle front cover.
Steps for removing and installing the handle rear cover.
Procedure for removing and installing the front fender.
Steps for removing and installing the rear fender.
Detailed steps for replacing brake fluid and bleeding the hydraulic system.
Steps for removing, inspecting, and assembling the master cylinder.
Procedures for removing, inspecting, and installing brake linings and drums.
Steps for removing and installing the steering handle assembly.
Procedures for removing, inspecting, and installing the front wheel and bearings.
Detailed process for removing, installing, and adjusting the steering stem bearings.
Procedures for removing and installing the rear wheel and related components.
Instructions for removing and installing the rear suspension (shock absorbers).
Procedures for battery removal, voltage check, and charging.
Explanation of the charging circuit and current leakage inspection.
Steps for checking ignition coil, exciting coil, and pulse generator resistance.
Procedures for inspecting the starter relay and starter motor.
Procedures for inspecting and testing main, handle, start, and horn switches.
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