FixVault

Engine Compression

Check compression pressure with engine at normal operating temperature, throttle valve wide open, all spark plugs removed and coil wire disconnected. Minimum cranking speed is 300 RPM.

COMPRESSION SPECIFICATIONS

Application Specification
Compression Ratio 9.6:1
Compression Pressure 160-170
Maximum Variation Between Cylinders 10 psi (.70 kg/cm2 )