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!
The unloader vale is stuck, and not allowing the pressure to build. I find no breakdown of the washer listed Do you have owners manual with parts list?
Look for unloader or spill valve, depending on how it is named, same part. It wil be stuck!
Yes, but cleaning it may be all that is required.
It needs to be free to move.
Are you looking at the unloader? It is a valve internally, that has to move up and down, to turn pressure on and off,
I see question is still open, please rate to close the question and get me credit!