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    rebuilding 97'yamaha tlrv 90 hp two stroke.

    I am wanting to rebuild my 90 HP yamaha . What is the most that I can bore the cyls. With out getting into problems? Also can I have the head shaved and if so how much and what should I gain? Should I use all Yamaha parts or is their some good aftermarket parts out their?
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    johnson 225 looper engine

    I am considering buying a 93 johnson 225 looper engine. I am curious as what the engine weighs? And what kind of fuel consumption it will have. It isa 20" shaft. Also what is the ball park compression suppose to be?
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    97 c90tlrv 2 stroke low power no wot!!

    I'm am still having trouble with the power issue When I put the motor in the water is sounds like it's missing. When I try to throttle up I only get about 2800 then after a few mins it will finally get up on plane and get up to about 3700 to 4000 but will not achieve 5500. When I rebuilt this...
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    90 hp yamaha 2 stroke need help with wot!!??

    I have just purchased a 19' polar fiberglass boat with a c90tlrv yamaha 2 stroke on it. I have ran a compression test and come up with 100-105 psi on all three cylns. I also ran a spark test and with a 7/16 gap and got a strong blue spark. I sync. the carbs and the linkages and also used a dial...
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