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F40 starving or flooding
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<blockquote data-quote="JL8Jeff" data-source="post: 349535" data-attributes="member: 12995"><p>When the fuel pump diaphragm went bad on my old 99 Johnson 2 stroke 40 hp motor it acted the same. I swapped out tanks, fuel lines, filters and it was the same. I could squeeze the bulb and keep it running good but you could see the fuel was not refilling without me squeezing the bulb. I went through 2 fuel pumps in a couple of years, I think it's the ethonal eating away at the rubber components. I got a rebuild kit and it ran fine after that. With yours being EFI, I wonder if it's fuel pressure related or injector related. It sounds like it's not pumping fuel.</p></blockquote><p></p>
[QUOTE="JL8Jeff, post: 349535, member: 12995"] When the fuel pump diaphragm went bad on my old 99 Johnson 2 stroke 40 hp motor it acted the same. I swapped out tanks, fuel lines, filters and it was the same. I could squeeze the bulb and keep it running good but you could see the fuel was not refilling without me squeezing the bulb. I went through 2 fuel pumps in a couple of years, I think it's the ethonal eating away at the rubber components. I got a rebuild kit and it ran fine after that. With yours being EFI, I wonder if it's fuel pressure related or injector related. It sounds like it's not pumping fuel. [/QUOTE]
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