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    Yamaha 1998 130HP carburetor , with Ignition Coil problems.

    Hi, i was having problems in one of my engine due to one of the ignition coil failled, i replaced it and the problem is:confused: gone. Is there any possible test to check the others ignition coil? Thanks
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    Yamaha 130hp 1998 too much smoke in only one of two.

    Hi everyone,i have been using two 130hp in my boat for over 5 years. Carburetor and pre-mix oil 50:1 ratio. One of them produse more smoke than the other while running.Is ok ? any relation with the spark im using? NGK 8 and NGK 9.thanks :confused:
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    Oil lines replacement ???

    Hi everyone, do i have to change the oil lines base on years of use? does the inside hole of the lines from oil pump to cilinders changes diameter with the years?? I want to make sure all of them are delivering the right amount of oil.thanks:rolleyes:
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    Use of oil pump versus premix gas pro and cons in Yamaha 2 stroke ?

    Hi everyone any advise :cool: will be appreciated. I have a Yamaha 130hp 1998 with carburetor. I,m still using the original oil pump for lubrication. I have heard many times that is better if I disconnect the pump and use premix gas instead.????? Different people and some of them with mechanic...
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    Low compression cilynder due to damaged piston??

    Re: Low compression cilynder due to damaged piston?? The cylinder has some visible marks but you can not feel it when you touch it. I clean it up but some marks made by piston are there.Do you think is ok just replacing this for new piston and rings or the overhaul is the only solution.Thank,s...
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    Low compression cilynder due to damaged piston??

    Hi everyone ,i removed the damaged piston and i attached pictures. Why those rings stuck like that in the piston ??? How can i prevent it does not happen again in the future? Yamaha 130hp 1998 carburetor 2 stroke.Thank's
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    Low cylinder compression

    Hi,i have a 2 stroke Yamaha 130hp 1998. The engine used to work good and 135 psi in the 4 cylinders.After two months with not use, now i have the engine failing and lack of power.I took the compression again and now there is one of them with only 25psi????? It could be rings stuck? Thank's in...
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