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Boats been running fine all summer. Went speck fishing Sunday, fished awhile, cranked up to run to beach, running @4500 and motor went dead like out of gas. Hard to start but once started had to idle at 1200 RPM but would die out after few minutes. pumped bulb to fill fuel/water separator on motor but level would go down to bottom of filter and die out in a few minutes. Idled 5 miles this way to get back to dock. Today, in driveway, pumped up primer and raw fuel coming out exhaust at the propeller. Hole in diaphragm pump (LP Pump)?
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You can test the LP pumps by attaching a vacuum pump to outlet port and cover inlet port with your finger. Should pump and hold vacuum. If not diaphragm has a pinhole.
Also can unbolt and remove all three pumps leaving hoses intact and pump primer bulb to detect external leak on bad pump. Good luck! -
Changed all three diaphragm pumps and runs like new. when removing pumps kept hooked up to fuel lines and pumped bulb. top two pumps leaking.Comment
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