| Engine Detail | |
| Kohler CH12.5 | |
| gasoline | |
| 1-cylinder | |
| air-cooled horizontal-shaft | |
| Displacement | 398 cc 24.29 ci |
| Bore/Stroke | 3.4375x2.625 inches 87 x 67 mm |
| Power (gross) | 12.5 hp 9.3 kW |
| Idle RPM | 1400-3600 |
| Starter | electric |
| Starter volts | 12 |
| Sparkplug | 759-3336 |
| Sparkplug gap | 0.040 inches 1.016 mm |
| Engine Oil | |
| |
| Oil capacity | 2 qts 1.9 L |
| Oil change | 100 h |
| Page information | |
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| Peter Easterlund - owner/author | |
| Email: Peter@TractorData.com | |
| Updated on September 16, 2025 |