| Engine Detail | |
| Onan | |
| gasoline | |
| 2-cylinder | |
| air-cooled horizontal-shaft opposed twin | |
| Power (gross) | 20 hp 14.9 kW |
| Starter | electric |
| Starter volts | 12 |
| Sparkplug | Champion RS14YC |
| Sparkplug gap | 0.025 inches 0.635 mm |
| Intake valve clearance | 0.005 inches 0.127 mm |
| Exhaust valve clearance | 0.013 inches 0.330 mm |
| Craftsman 917.25003 Engine | |
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| Image courtesy of James Hansen |
| Page information | |
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| TractorData is a family-owned small business located in Minnesota that has been providing reference information on tractors since 1999. | |
| Peter Easterlund - owner/author | |
| Email: Peter@TractorData.com | |
| Updated on October 14, 2022 |