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General| Displacement | 49 cc |
|---|---|
| Bore x Stroke | 39.0 mm x 41.4 mm |
| Compression Ratio | 8.8:1 |
| Transmission | 3-speed manual |
| Fuel System | Carburetor |
| Ignition | CDI |
| Final Drive | Chain |
| Front Suspension | Telescopic fork |
| Front Brake | Drum |
| Rear Brake | Drum |
| Tires Front | 2.50-10 |
| Tires Rear | 2.50-10 |
| Starter | Kick |
| Front Tire | 2.50-10 |
| Rear Tire | 2.50-10 |
| Engine Type | Air-cooled, 4-stroke, single-cylinder |
| Rear Suspension | Twin shock |
Indicates a strong possibility of severe personal injury or death if instructions are not followed.
Indicates a possibility of personal injury or equipment damage if instructions are not followed.
Gives helpful information.
Provides essential safety precautions for operating and servicing the motorcycle.
Provides standard torque specifications for various bolts and nuts.
Detailed steps for removing and disassembling the oil pump from the engine.
Instructions for reassembling the oil pump components correctly.
Step-by-step guide for draining and refilling the engine oil, including torque specs.
Steps for installing the oil pump back into the engine crankcase.
Details maintenance tasks and intervals for models after '97.
Instructions for inspecting, measuring gap, and replacing the spark plug.
Procedure for inspecting and adjusting valve clearance while the engine is cold.
Steps for testing engine cylinder compression using a gauge.
Steps to safely remove the carburetor from the motorcycle.
Detailed steps for disassembling the float chamber, main jet, and air screw.
Instructions for cleaning parts and reassembling the carburetor.
How to measure and adjust the carburetor float level using a special tool.
Steps for installing the carburetor and performing post-installation adjustments.
Procedures for disassembling the carburetor, starting with the throttle valve.
Procedure for adjusting the carburetor's air screw for optimal idle speed.
Detailed steps for removing the engine, including draining oil and disconnecting components.
Procedures for installing the engine, including torquing fasteners and filling oil.
Further steps for camshaft removal, including valve adjuster covers.
Procedures for disassembling the cylinder head, including valve components.
Step-by-step process for replacing valve guides, including heating and reaming.
Inspecting valve seats for width and refacing them using cutters.
Using 32, 60, and 45-degree cutters to achieve proper valve seat width.
Instructions for installing valve stem seals, valves, springs, and retainers.
Steps for installing the cylinder head onto the engine block, including gaskets.
Procedures for installing the camshaft on '88-'91 models, aligning timing marks.
Steps for installing the camshaft on models after '91, aligning timing marks.
Installing the camshaft, dowel pin, cam chain, and securing the cam sprocket bolts.
Steps for removing the cylinder head, including related components.
Specifies torque values for rear axle nut, sprocket nut, and shock absorber mounting nuts.
Common ignition system problems like no spark, engine not starting, or rough running.
Comprehensive guide to diagnosing engine starting problems based on checks.
Troubleshooting steps for diagnosing loss of engine power.
Diagnosing issues related to poor performance at low engine speeds.
Troubleshooting steps for poor performance at high engine speeds.
Troubleshooting steps for diagnosing weak or no spark issues.
Diagnosing issues causing poor motorcycle handling.
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