Small Engine Troubleshooting Problems? Ask a Mechanic Now.
Welcome to JUST ANSWER small engines, let me try to help you !! I don't know it all, but maybe together we can get you a satisfactory answer!
When it quits, is it hard to turn? Problem may not be the engine, but the pump locking up.
I see question is still open.????
Locate the unloader valve and remove it and see if it may be sticking.