My PC50UU-1 starts cleanly and goes to idle and warms nicely. However, whenever I add even the slightest amount of throttle, the engine dies. I would like to request a manual if still available. Any help you may lend is greatly appreciated!
By your brief explanation, it sounds like a classic case of very low fuel supply.. Just enough to keep it running at low idle, not enough to make it go.. filters would my first go to.. maybe even disconnect the feed line to the filter head and back blow it w compressed air. Then check inlet pressure AT THE INJECTION PUMP INLET. (U don’t need a gauge) when u break the connector loose, u should get wet while cranking… Good luck