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    Yamaha 15hp 4 stroke no start, random spark?

    I have a 2013 Yamaha 15hp 4 stroke that has been great. I removed it from my inflatable and left it on it's side for a week. When I reinstalled it it started right up by gave out a puff of funky smelling smoke, this lasted a few seconds then I drove it around. It ran great for about 5 minutes...
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    Gas out of top of carb Yamaha 8hp

    I have a 2002 Yamaha 8hp 4 stroke that I rebuilt the carburetor on a couple months ago, I have put a few hours on the motor since. The other day while running it just died, we got towed in. I drained the bowl and it fired up and seamed ok in the slip, there was a lot of air in the fuel(tiny...
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    1997 Evinrude 15hp smoke bubbles ?

    I just bought a 1997 2 stroke 15hp Evinrude that is supposed to have very low hours.It runs well but the bubbles from the exhaust are pretty smokey, is it just set to rich or something else ? Thanks
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    1975 Johnson oil/fuel ratio

    Is it 50:1 ? Thanks
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    2001 yamaha 15 4 stroke ...ear muffs ?

    Will this engine pump water using ear muffs or do you need to use the hose attacthment ? I went and looked at this motor yesterday and the shop used ear muffs and it wouldnt pump ,they didnt try the attatchment.
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    2001 yamaha 15 anyway to increase power?

    Anyway to increase horsepower on a 2001 yamaha 15 hp ?
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    Old johnson 15 vs Yamaha 15 4 stroke ...heavy small boat question

    Hello, I have a 10.5' Avon RIB (inflatable,glass hull)thats carrying about 550lbs(people and gear) it is rated for a 15hp and up to 1200lbs. We have a 1975 Johnson 15 that runs great but will not plane us off.I can get a 2002 yamahha 4 stroke 15 but I have received different opinions about this...
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