Cylinder/Piston/Crankshaft Troubleshooting; Abnormal Noise - Honda GL1800 Service Manual

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TROUBLESHOOTING

Compression too low, hard starting or poor performance at low speed

• Leaking cylinder head gasket

• Worn, stuck or broken piston ring

• Worn or damaged cylinder and piston

Compression too high, overheating or knocking

• Excessive carbon build-up on piston head or combustion chamber

Excessive smoke

• Worn cylinder, piston or piston rings

• Improper installation of piston rings

• Scored or scratched piston or cylinder wall

• Worn piston pin or piston pin hole

• Worn cylinder, piston or piston rings

• Worn main journal bearings

• Worn crankpin bearings

CYLINDER/PISTON/CRANKSHAFT

Troubleshooting