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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 |
| Ignition | CDI |
| Final Drive | Chain |
| Front Brake | Drum |
| Rear Brake | Drum |
| Front Tire | 2.50-10 |
| Rear Tire | 2.50-10 |
| Trail | 1.7 inches |
| Seat Height | 21.6 inches |
| Fuel Capacity | 0.7 gallons |
| Transmission | Three-speed |
| Rear Suspension | Single shock; 2.8 inches travel |
| Front Suspension | Inverted telescopic fork; 3.5 inches travel |
Covers safety precautions for engine operation, gasoline handling, and hot components.
Provides torque specifications for various fasteners used in engine and chassis components.
Covers the removal and installation of the muffler and exhaust pipe, including torque specs.
A schedule outlining periodic inspections and maintenance tasks for the motorcycle.
Details on spark plug removal, inspection, and re-gapping for optimal performance.
Steps for inspecting and adjusting valve clearance while the engine is cold.
Instructions for checking the engine oil level and performing an oil change.
Instructions for inspecting, adjusting, cleaning, and lubricating the drive chain.
Detailed steps for the removal, disassembly, inspection, and assembly of the oil pump.
Detailed procedure for taking apart the carburetor, including jet and screw removal.
Steps for reassembling the carburetor, including jet and screw installation.
Step-by-step guide for adjusting the air screw for optimal idle speed.
Steps for disconnecting components and removing the engine from the frame.
Procedures for installing the engine back into the frame and reconnecting components.
How to perform a compression test to diagnose engine performance issues.
Step-by-step guide for removing the camshaft, including chain tensioner adjustment.
Procedures for removing the cylinder head, including muffler and camshaft removal.
Steps for lubricating and installing the camshaft into the cylinder head.
Steps for removing the cylinder head, guide roller, and cylinder.
Procedures for removing the piston, including pin clips and rings.
How to measure cylinder bore for wear and check piston for warpage.
Steps for installing the piston, pin, and rings correctly into the cylinder.
Procedures for installing the cylinder, including gasket and cam chain routing.
Steps for removing the right crankcase cover and related clutch components.
Diagnoses rear wheel issues like wobbling or soft/hard suspension.
Diagnoses ignition system problems like no spark or low peak voltage.
A comprehensive wiring diagram showing all electrical connections and components.
Diagnostic flowcharts for engine starting problems.
Diagnostic flowcharts for issues related to reduced engine power.
Diagnostic flowcharts for poor low-speed and idle performance.
Diagnostic flowcharts for issues causing poor high-speed performance.
Diagnostic flowcharts for problems affecting the motorcycle's handling.
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