502 won't idle
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502 won't idle
Have a 502 engine with a 4 barrell carb. Boat was running fine and the last time I went to use it the engine will not idle. I can get it to idle down to 900 rpms but anything lower than that it stalls. Checked the fuel filter and it was ok. Where do I go from here?
#2
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Carbs? I've had to make adjustments to mine over the summer.
#5
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sounds like a vacuum leak or the choke needs to be adjusted, did it just start this all of a sudden ? runs fine otherwise ?
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Make sure:
Blades are shut on the primaries and sec.
No air leaks
stuck needle and seat (wouldn't run even at 900 rpm but check anyway)
powervalve leaking
check timing
check plugs/wires/dist cap and rotor not likely if not missing
Blades are shut on the primaries and sec.
No air leaks
stuck needle and seat (wouldn't run even at 900 rpm but check anyway)
powervalve leaking
check timing
check plugs/wires/dist cap and rotor not likely if not missing
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#7
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How long did it sit before your last run? Was it cold weather when you started having problems? Did you let it warm up and see if you had the same problem?
900rpm idle sounds good to me.
900rpm idle sounds good to me.
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Sea foam fixes all
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