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  1. T

    1989 yam 40 hp 3 cylinder

    hi all just an update ive stripped the engine out cant find anything wrong so orderd new gaskets and seals im changing the fuel lines basicly renewing all the bits I can so hopefully all is ok.
  2. T

    1989 40hp yam

    how do you set the timing on a 1989 40 hp yam plz
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    yamaha 40 hp

    hi all im new to this site and hopeing somone can help me rite here goes I have a 40 hp yam 1989 itsits loosing power I e not reving out I noticed the bottom plug was black and wet so I done a compresion test all cylinders are 135 psi its sperking very well so I thought petrol I cleaned carbs...
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    1989 yam 40 hp 3 cylinder

    hi all I have a 40 hp yam 1989 the moter runs spot on on tick over but wen I open her up boat gets on the plane then the engine seems to lack power it dont rev out it s fine on half throttle give it any more then it wont rev no more this is wots been done all 3 compressions are 125 psi carbs...
  5. T

    1989 yam 40 hp 3 cylinder

    hi all I have a 40 hp yam 1989 the moter runs spot on on tick over but wen I open her up boat gets on the plane then the engine seems to lack power it dont rev out it s fine on half throttle give it any more then it wont rev no more this is wots been done all 3 compressions are 125 psi carbs...
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