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fuel has been spilling out of carburetor for some time now, maybe a few weeks. I just turn the fuel off when not in use and no problem. Unrelatedly, the motor was held underwater in an upside down direction bobbing with the waves for a few hours a week or two ago after the boat flipped on it's mooring. I pickled the motor immediately and did a full carburetor disassembly and cleaning. Was hard to start as motors always seem to be after that, and did not run well with very little torque. motor is still running weak after two more carb cleanings, and still flooding the carb. It will be often hard to start, run fine for a minute or two and abruptly stall. It seems to be better in low RPM. as soon as I go high it bogs down and stalls. Is still generally hard to start, sometimes can only be kept running by constantly playing with choke to counter act stalls, and I am lost with this one. Don't know where to go from here. I know the float switch/needle valve may be a likely culprit for the flooding, but I think that is unrelated as it was running fine before the drowning with the same problem. on appearance floatand needle are fine when i disassemble it. would be greatly in debt to any one who helps with some opinion. I live on my boat and need this motor to work for my survival. Thanks. one of my theories is the diaphragm which degrades in integrity with every cleaning and seemed a little torn on one corner, today i noticed vapor and micro droplets spewing up out of the seams where the diaphragm and its gaskets are when I was trying to start it.
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If you cannot clean and repair it your self, there are lots of Yamaha shops around that can clean your carb properly or you can buy a new one to put on. -
places near here will not even work on the motor. They are too busy fixing much higher value large motors for all the open fishermen and such boats around here in sO Florida, I mean I think someone will do it for enough money, but no one with legit skills or parts will for anything but almost what i can buy a brand new motor for. I'm low on money so i want to do it myself. doesnt seem like that big a problem everything looks fine the motor is almost unused until i bought it six months ago and I've taken very good care of it. thats why I'm trying to find out how to figure out whats wrong on here. But buying a new carb is an option I've consider at the very least a rebuild kit. Unfortunately all carbs are aftermarket though even rebuild kits, which idont trust.Originally posted by 99yam40 View PostComment
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Doesn't matter how it was looked after, or how much use its had, it's been under water, and needs to be dealt with, your symptoms certainly appear to be carb related, seeing as playing with the choke helps. Remove the carb and clean it properly, and by cleaning I don't mean washing, or spraying with "stuff" then drain the fuel tank and lines to make sure you have clean fuel.Comment
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If you know a gasket has failed, fix it.
As you've had issues in the past with the carb flooding, get the re-build kit and do it right. Focus on the float as well. Make sure it isn't leaking by shaking and listening for fluid inside or holding under water and look for bubbles(like a slow leak in a tube).
As water may still be in an orifice, break it fully down and make sure ALL JETS come out and you can light thru them. As noted above, just spraying don't count.. If you don't see light thru the jets it ain't clean...
With the bowl off and gently pushing the float up(closed), you should NOT be getting any fuel into the bowl area (hooked up to a temp fuel source)
After the under water incident, were all the electrical connectors separated, cleaned, etc?
Where abouts are you in S Florida?Scott
1997 Angler 204, Center Console powered by a 2006 Yamaha F150TXRComment
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