| Engine Detail | |
| Briggs & Stratton 31P777 | |
| gasoline | |
| 1-cylinder | |
| air-cooled vertical-shaft | |
| Displacement | 503 cc 30.7 ci | 
| Bore/Stroke | 3.56x3.062 inches 90 x 78 mm | 
| Power (gross) | 18 hp 13.4 kW | 
| Starter | electric | 
| Starter volts | 12 | 
| Sparkplug | Champion RC12YC | 
| Sparkplug gap | 0.030 inches 0.762 mm | 
| Engine Oil | |
|   | |
| Oil capacity | 1.75 qts 1.7 L | 
| Page information | |
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| Peter Easterlund - owner/author | |
| Email: Peter@TractorData.com | |
| Updated on May 22, 2023 |