Fault Diagnosis; Compression Pressure Is Low; Compression Pressure Is High; Exhaust Pipe Is Emitting White Smoke - Benelli TNT125 Maintenance Manual

Fault Diagnosis

Compression pressure is low

●Wear, burning loss or damage of piston
●Wear or damage of cylinder and piston
●Damage of gasket and leakage between crankcase and gas

Compression pressure is high

●Too many carbon deposition in the combustion chamber

Exhaust pipe is emitting white smoke

●Wear and damage of piston ring
●Wear or damage of piston and cylinder

The sound of piston is abnormal

●Damage of cylinder, piston and piston ring
●Wear of piston pin hole and piston pin
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