Quote:
Originally Posted by bigdog
"...The list is getting shorter..."
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It really is, and I applaud your efforts to "DIY".
I haven't read where you've changed the fuel line from the pump to the carburetor. I've had even a braided stainless steel brake line "squish itself shut"! (And a brake pedal's pressure
is some pressure to overcome.

)
Electric fuel pumps in the range of 3-5 psi can be tested by using your thumb to halt its pressure. They should also put out enough pressure to squirt gas strongly as you
release your thumb. At only 3-5 psi, I'd expect a simple gravity-feed from an alternative tank would run your engine—even under a load.
The diaphragm inside can develop a leak. It
may be a relatively easy fix, and a kit
may be available from NAPA stores. You could even make a decent diaphragm by cutting one out of a suitable material, like material from a "close-enough" repair kit. How's
that for "DIY"?
Quote:
Originally Posted by bigdog
"...One way or another, I will be using my boat this vacation, even if it means sitting in my boat..."  )
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Hey, I believe we have the makings of a "lake sailor" here!