Engine Compression
Check compression with engine warm, all spark plugs removed and throttle wide open. Crank engine at least 6 strokes per cylinder.
NOTE:
Connect coil high tension wire to ground before cranking engine for compression test.
COMPRESSION SPECIFICATIONS
| Application | Specification | |
|---|---|---|
| Compression Ratio | 10:1 | |
| Compression Pressure | ||
| Normal (New Engine) | 145-189 psi (10-13 kg/cm2 ) | |
| Minimum | 109 psi (8 kg/cm2 ) | |
| Max. Variation Between Cylinders | 44 psi (3 kg/cm2 ) | |