Engine Compression
Check compression pressure with engine at normal operating temperature, all spark plugs removed, and throttle and choke valves wide open.
COMPRESSION SPECIFICATIONS
| Application | Specification | |
|---|---|---|
| Compression Ratio | ||
| 95" & 98" | 8.5:1 | |
| 140" | 8.0:1 | |
| 151" | 8.3:1 | |
| Recommended Fuel | Unleaded (87 AKI Minimum) | |
| Compression Pressure | ||
| 95" & 98" | 145 psi | |
| 140" & 151" | 140 psi | |
| Max. Variation Between Cylinders | 20 psi | |