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Safety guidelines and general precautions for engine servicing.
An index of engine components with corresponding numbers.
Specifications for engine types 120, 154, and 177.
Routine maintenance intervals and checks for the engine.
Troubleshooting guide for common engine problems and their solutions.
Specific torque values for fasteners during assembly and disassembly.
Procedure for removing the starter motor from the engine.
Method for locking the crankshaft at the top dead center position.
Instructions for removing the engine's cylinder head assembly.
Step-by-step guide for removing the piston from the cylinder.
Procedures for cleaning and inspecting the engine crankcase.
Checks and measurements for the engine crankshaft wear.
Procedures for checking and servicing the engine's transmission components.
Inspection and servicing of the engine cylinder and piston.
Procedures for servicing the engine cylinder head, valves, and guides.
Instructions for refitting the flywheel side half crankcase.
Procedure for refitting the engine crankshaft into the crankcase.
How to adjust the valve clearance for optimal engine performance.
Procedure for testing the engine after reassembly and checks.
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