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Debra WrightAug 8, 2025
Why does my Ruggerini Engine have non-uniform speed?
- JJohn ZimmermanAug 8, 2025
If your Ruggerini Engine has a non-uniform speed, it could be due to a clogged air filter or excessive idle operation. Other possible causes include incomplete running-in, an overloaded engine, advanced or delayed injection, incorrect governor linkage adjustment, or a broken or loose governor spring. Also, check for an idle speed that is too low, worn or jammed piston rings, worn or scored cylinders, worn valve guides, jammed valves, worn bearings, a governor linkage or drive shaft that is not free to slide, or a damaged cylinder head gasket.



