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Engine Compression

  1. Ensure battery is fully charged and engine is at normal operating temperature. Allow engine to cool for 10 minutes. Remove spark plugs and ground ignition coil secondary wire.
  2. Hold throttle valve fully open. Attach compression gauge and crank engine until maximum pressure is reached at each cylinder (4-5 revolutions). Lowest cylinder pressure should be within 20% of the highest cylinder pressure.
COMPRESSION SPECIFICATIONS

Application Specification
Compression Ratio 9.7:1
Compression Pressure (1)
(1) Lowest cylinder pressure should be within 20% of the highest cylinder pressure.