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    yamaha 150 2 stroke no spark on 2-5 cylinders

    hi i have a weird problem with this motor it will not fire on cylinders 2 and 5 we have replaced all the electrical part stator,crank position sensor,cdi pack, and those two coils. do you know what could be the problem ever seen this happen
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    9.9 mercury outboard starting problem

    HI i have a 9.9 mercury outboard think its a 86 when i get it started it run perfect gets the boat up to plane and everything runs in reverse, but when it stalls or i shut it off its very hard to start. I think it might be a spark issue maybe the coils need to be replaced and the plug wires. IF...
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