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Boat problem

Old 01-14-2021, 06:24 PM
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Default Boat problem

I have a 2001 Johnson Evinrude Fitch fuel injected 135 HP motor, it starts very easy and idles good. But this is where I am having a huge problem, when I go out on the. water and go to full throttle it will run for 5 to 10 minutes and started to sputter and cut down to idle speed. Then I would go back to neutral and back to full throttle again and its just sputtering and cut off and it will start right back and I would let it idles all the way back to boat ramp. If any one out there with any idea why this motor is doing this I would greatly appreciate your feed back! Thank you.
Old 01-15-2021, 04:48 AM
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Sounds like a fuel restriction. Is your primer ball collapsing when you go full throttle? Might want to check the anti-siphon valve.
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Old 01-15-2021, 05:33 AM
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if a in hull tank check the pickup tube for trash/corrosion and eliminate/replace the anti siphon valve at the tank also change the inline filter if one is installed, check/replace the primer bulb, if there is a quick disconnect at the engine check/replace the o ring
Old 01-15-2021, 05:43 AM
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Use an alternate fuel tank and new line / ball....it is fuel starved
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Old 01-19-2021, 07:15 PM
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Thanks for your responses! Yes have changed the primer bulb, the fuel line, the breeder hose on the fuel tank, and I used a portable fuel tank and got the same result. What else can I try? Please let me know. Thank you.
Old 01-19-2021, 07:54 PM
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I think that those engines may have a high pressure and low pressure fuel pump. Perhaps the high pressure pump is failing.

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