ironman
Thanks for your input - I like the relay idea. I was thinking about two inline diodes - one from the key in the on position and one from the key in the crank position, but I think your suggestion is better.
1711cub
I replaced the mechanical OEM pump at the same time I added the fuel shutoff - like 12 months ago. I hope its not giving up the ghost already. I understand the tank and carb position on these machines allow gravity feed to the carb when the fuel level is high in the tank. The pump is technically only need when the fuel level is below half. With that said could the failing check valves you are talking about block the natural gravity fuel flow? Im thinking if my gas tank is full and the fuel shut off valve is open regardless if the fuel pump is working the carb should be getting all the fuel it needs?
One more question. If I add an electronic fuel pump do I still need the fuel shutoff? Can the pump let fuel bypass without power?
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