| Engine Detail | |
| Kohler M20S | |
| gasoline | |
| 2-cylinder | |
| air-cooled horizontal-shaft opposed-twin | |
| Displacement | 770 cc 46.98 ci |
| Bore/Stroke | 3.125x3.06 inches 79 x 78 mm |
| Power (gross) | 20 hp 14.9 kW |
| Idle RPM | 1200-3600 |
| Starter | electric |
| Starter volts | 12 |
| Sparkplug gap | 0.025 inches 0.635 mm |
| Intake valve clearance | 0.004 inches*Cold 0.102 mm |
| Exhaust valve clearance | 0.012 inches*Cold 0.305 mm |
| Engine Oil | |
| |
| Oil capacity | 2.75 qts 2.6 L |
| Page information | |
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| Peter Easterlund - owner/author | |
| Email: Peter@TractorData.com | |
| Updated on September 15, 2025 |