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General| Engine Type | 49cc air-cooled single-cylinder four-stroke |
|---|---|
| Bore and Stroke | 39.0mm x 41.4mm |
| Compression Ratio | 10.0:1 |
| Valve Train | SOHC; two-valve |
| Carburetion | 13mm piston-valve |
| Ignition | CDI |
| Final Drive | Chain |
| Front Brake | Drum |
| Rear Brake | Drum |
| Front Tire | 2.50-10 |
| Rear Tire | 2.50-10 |
| Seat Height | 21.6 inches |
| Fuel Capacity | 0.7 gallons |
| Transmission | 3-speed |
Safety precautions for operating the motorcycle.
Rules to follow during service procedures.
Recommended maintenance intervals and tasks.
Inspecting and adjusting valve clearance.
Checking and changing engine oil.
Inspecting, adjusting, and lubricating the drive chain.
Inspecting and maintaining the brake system.
Adjusting the air screw for optimal engine performance.
Step-by-step procedure for removing the engine.
Step-by-step procedure for installing the engine.
How to measure cylinder compression pressure.
Procedures for removing the camshaft.
Step-by-step removal of the cylinder head.
Procedures for disassembling cylinder head components.
Procedures for replacing valve guides.
Inspecting and refacing valve seats.
Using valve seat cutters for refacing.
Procedures for installing the camshaft.
Step-by-step procedure for removing the cylinder.
Procedures for removing the piston.
Inspecting cylinder bore and piston for wear.
Procedures for installing piston rings.
Step-by-step procedure for installing the piston.
Procedures for installing the cylinder.
Step-by-step procedure for removing the clutch.
Disassembling clutch components.
Inspecting clutch lifter bearing and components.
Assembling clutch components.
Procedures for removing the gearshift linkage.
Procedures for installing the gearshift linkage.
Procedures for removing flywheel and stator.
Step-by-step removal of the cam chain tensioner.
Installing cam chain tensioner components.
Procedures for installing stator and flywheel.
Procedures for separating the crankcase halves.
Step-by-step procedure for removing the crankshaft.
Inspecting crankshaft bearings and runout.
Procedures for installing the crankshaft.
General information and precautions for ignition system service.
Diagnosing ignition system problems.
Diagnosing and resolving starting issues.
Troubleshooting symptoms of low engine power.
Diagnosing poor performance at low speeds.
Troubleshooting high-speed performance issues.
Diagnosing and resolving handling problems.
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