Simplicity SunStar 20 Engine
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| Engine options | |
| 20HP Kohler 770cc 2-cyl gasoline | |
| 20HP Kohler 622cc 2-cyl gasoline |
| Engine Detail | |
| Kohler M20 | |
| gasoline | |
| 2-cylinder | |
| air-cooled horizontal-shaft opposed-twin | |
| Full-pressure lubrication. The Kohler Magnum was used through the 1994 model year. | |
| Displacement | 770 cc 46.98 ci |
| Bore/Stroke | 3.125x3.063 inches 79 x 78 mm |
| Power (gross) | 20 hp 14.9 kW |
| Air cleaner | dual element |
| Compression | 6.6:1 |
| Rated RPM | 3400 |
| Starter | electric |
| Starter volts | 12 |
| Oil capacity | 1.75 qts 1.7 L |
| Sparkplug | Champion RV15YC |
| Sparkplug gap | 0.025 inches 0.635 mm |
| Engine Detail | |
| Kohler Command CH20S | |
| gasoline | |
| 2-cylinder | |
| air-cooled horizontal-shaft opposed-twin | |
| The Kohler Command engine was used in the SunStar 20 from 1995 through 1997. | |
| Displacement | 622 cc 38 ci |
| Bore/Stroke | 3.03x2.64 inches 77 x 67 mm |
| Power (gross) | 20 hp 14.9 kW |
| Air cleaner | dual element |
| Rated RPM | 3600 |
| Starter | electric |
| Starter volts | 12 |
| Oil capacity | 2 qts 1.9 L |
| Page information | |
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| Peter Easterlund - owner/author | |
| Email: Peter@TractorData.com | |
| Updated on May 15, 2025 |