| Engine Detail | |
| Zongshen 4P90HU | |
| gasoline | |
| 1-cylinder 2-valve | |
| air-cooled vertical-shaft | |
| Displacement | 420 cc 25.63 ci |
| Bore/Stroke | 3.543x2.598 inches 90 x 66 mm |
| Power (gross) | 11.7 hp 8.7 kW |
| Fuel system | carburetor |
| Air cleaner | paper and foam elements |
| Starter | electric |
| Starter volts | 12 |
| Sparkplug | F6RTC |
| Sparkplug gap | 0.028 inches 0.711 mm |
| Engine Oil | |
| |
| Oil change | 50 h |
| Page information | |
![]() | |
| Copyright 2025 TractorData.com® | |
| 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 April 28, 2025 |