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#1
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Changed plugs, check. Cleaned all filters, check. Ran on auxillary tank, check...none of which fixed the problem. Time to
 This is a bunch of  I am supposed to be fishing for the next 2 weekends!!
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 1994 Wellcraft V21 
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#2
06-16-2008, 08:04 AM
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When I get home I'm going to pull the new plugs and check it out good to see if I can tell if there is a cylinder not firing. If I can't tell I'm going to put the old-new plugs back in and do a decarb session, then put the new-new plugs back in. If that does not fix it I'm going to use my 9.9hp the rest of the year!! Not really, but that is what I feel like doing.
Will update when I know more. Thanks to everyone!
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1994 Wellcraft V21
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#3
06-16-2008, 08:12 AM
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Next step for me would be a carb rebuild. Its not that difficult as long as you have the FACTORY repair manual. I'm betting you have some debris floating around in your carb bowls. I'm not sure about Yamaha but you may have a screw at the bottom of each bowl that you can loosen and let them drain and shoot some carb cleaner through. Its not the right way to do it but it may work.
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#4
06-16-2008, 08:18 AM
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Thanks Mulv for the advice...but there are 2 things that I don't know jack doo doo about....they are carbs and fiberglass.
Not a good father's day for Blue. Does anybody want to fly in to NC to help me fix this? 
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1994 Wellcraft V21
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#5
06-16-2008, 08:32 AM
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Blue, the carbs arent like what your thinking. There are no adjustments for air or idle screws or any of that good stuff. If they are like my 2000 Johnson 150 all the jets are fixed no adjustment required. You take each carb off, unscrew the bowl, shoot some carb cleaner through the jets, blow some compressed air through them, replace the gaskets, new needle, seat, and float, re-install. Sounds complicated, but its not.
The only thing that can be tricky is the Lync and Sync but alot of motors you don't have to disturb the linkages to remove the carbs. Trust me I have rebuilt carbs on 4 different motors and I'm no master mechanic, its that easy.
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#6
06-16-2008, 09:15 AM
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Hmmm....wonder how much round trip air fare from Philly to NC would be?
 Probably cheaper than hiring a mechanic! Ok, I might just have to dig in to this beast. I don't want to though.
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1994 Wellcraft V21
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