Quote:
Originally Posted by JOHN COOKSON
IMO every possible cause is on the table until that part of the fuel system (tank, filters, fuel pump, carburetor) is shown not to be the cause of the shut downs.
Back to the tank for a moment: This is a bit far out but here goes anyway:
The engine starts and runs normal at low RPMs. As RPMs increase more fuel is needed which increases the suction at the end of the pick up tube in the tank, which pulls crud at the bottom of the tank up against the bottom of the pick up tube blocking it and the engine dies. After the engine dies there is no longer any suction at the end of the pick up tube and the crud drops off. The cycle is repeated.
TRUE GRIT
Edit: Is there a solenoid at the top of the tank pick up tube that might be acting weird?
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Hmmmm ... so, perhaps if the recently filled batch of fuel was bad/crud laden ... anything is indeed possible at this point. I don't know about the selenoid. I'll take a look though.