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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?
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?
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...
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...
