Motor Problem Please Help!!!

Word of caution on this one. Sounds like you already have a few minutes of run time on this motor with a problem. If it is indeed a fuel starvation issue, you have also been running the motor without the oil that would normally be supplied to the bottom cylinder. Despite the original problem that causes you to have the carbs worked on, there is always the possibility that the "rebuild" of the bottom carb was not correct. Damage to the bottom cylinder and all associated moving parts, due to lack of oil coming through with the fuel will become a far greater issue than simply a bad carb job.

Disassembly and inspection of the bottom carb is essential prior to any more run time on the motor in my opinion. If it is an ignition problem, you can deal with that separately. Just make sure that if the motor is running, that it is also getting lubrication. My 2 cents.

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Originally Posted by boatstall

Word of caution on this one. Sounds like you already have a few minutes of run time on this motor with a problem. If it is indeed a fuel starvation issue, you have also been running the motor without the oil that would normally be supplied to the bottom cylinder. Despite the original problem that causes you to have the carbs worked on, there is always the possibility that the "rebuild" of the bottom carb was not correct. Damage to the bottom cylinder and all associated moving parts, due to lack of oil coming through with the fuel will become a far greater issue than simply a bad carb job.

Disassembly and inspection of the bottom carb is essential prior to any more run time on the motor in my opinion. If it is an ignition problem, you can deal with that separately. Just make sure that if the motor is running, that it is also getting lubrication. My 2 cents.

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I started in on that one myself but had something come up. I'll call your 2 cents and raise you 2 cents.

I had a mechanic rebuild my carbs and they didn't run right. Turned out he didn't replace the gaskets even though I supposedly paid for kits. Would suggest you get someone to rebuild the carbs right and use the new gaskets like they should and you'll probably run like you are suppose to. I would insist they make sure it runs properly. My second mechanic found that several things had been re adjusted trying to make the engine run correctly and after he set things to specks it runs great. Good Luck, Ferdi aka Fred

Thanks for all the advice guys, but I found the problem, while I was running it yesterday it threw a rod, bearing, or something through the crankcase. So I doubt I'll worry about the carbs.

dang, that hurts. i know it's not funny but i couldn't keep from laughing at the way you "found the problem." sounds like a new motor is in order.

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Originally Posted by olduckhunter

dang, that hurts. i know it's not funny but i couldn't keep from laughing at the way you "found the problem." sounds like a new motor is in order.

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OUCH, x2 We outta make a sticky out of this experience. NO FUEL-NO LUBRICATION
Go back to your mechanic and "thank him" or better yet post his business or name so that we can all avoid him.

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Originally Posted by crappiedoc

OUCH, x2 We outta make a sticky out of this experience. NO FUEL-NO LUBRICATION
Go back to your mechanic and "thank him" or better yet post his business or name so that we can all avoid him.

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No it wasn't him, he is actually one of the best mechanics I've known, fair, honest and knows more about motors than anyone. and it wasn't a lube problem, it had fuel and oil I was spraying a mix in when it did it, just very low compression I found out, not sure if it broke a ring to do that or not. Maybe a valve, I dont know but im gonna tear it apart just to see exactly what happened.
old duck, yeah its funny now, but still a little depressing, now i gotta look for a 60 to 80 horse motor if anyone in NC knows anything

rap, if you had the motor since new it was like an old friend dying on you. at 35 years old the motor had lived it's normal life i would say. shop around for a good looking older ski boat that might have the size you are looking for and you might get a good motor cheaper buying both than just a motor somewhere. then try to sell the ski boat and trailer to someone to re-coop some of the money. just a thought. there's lots of ski boats up for sale now and with gas prices headed no telling where there will be more. if you aren't in a big hurry you could get a good motor at a good price. and i wasn't laughing at your bad luck either. i would never do that.

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Originally Posted by olduckhunter

rap, if you had the motor since new it was like an old friend dying on you. at 35 years old the motor had lived it's normal life i would say. shop around for a good looking older ski boat that might have the size you are looking for and you might get a good motor cheaper buying both than just a motor somewhere. then try to sell the ski boat and trailer to someone to re-coop some of the money. just a thought. there's lots of ski boats up for sale now and with gas prices headed no telling where there will be more. if you aren't in a big hurry you could get a good motor at a good price. and i wasn't laughing at your bad luck either. i would never do that.

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Haven't had the boat long, 8 months maybe, and yes its had a good life, its done better than me, since i'm only 17. Yeah the ski boat isnt a bad idea though, problem is I want a motor in a hurry, with spring coming fast I don't want to miss the best time to fish.

Thats a bummer! My mech always runs a compression test first, kinda upsets me having to pay for it, but I guess its cheaper than your predictament. I've learned short-cuts to save money only cost more later, at least for me