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Engine Compression

Check engine compression with engine at normal operating temperature and specified cranking speed, all spark plugs removed (on dual plugs, remove exhaust side only) and throttle wide open.

COMPRESSION SPECIFICATIONS

Application Specification
Compression Ratio 11.3:1
Normal Compression Pressure 142-184 psi (10-13 kg/cm2 )
Minimum Compression Pressure 107 psi (7.5 kg/cm2 )
Maximum Variation Between Cylinders 22 psi (1.5 kg/cm2 )