June 21Jun 21 Hi ti all, replacing base gasket and I notice the existing one is made of a thick gasket paper and the genuine ones I see for sale all have the port cutouts where my old one does not. Only recently purchased and appeared to run ok but was leaking around the base gasket when hot. Many thanks for any advice. Cheers Rob from NZ.
June 21Jun 21 Do you mean the port cutouts on the existing gasket are in the wrong place or the gaskets you've seen advertised have the port cutouts in the wrong place?
June 21Jun 21 Author Thanks for getting back, I mean my existing gasket that's on the engine has zero cut outs except for the piston area in the middle, makes me wonder how the gates flow correctly through the ports. Cheers Rob.
June 21Jun 21 18 hours ago, NobbyC said: Hi ti all, replacing base gasket and I notice the existing one is made of a thick gasket paper and the genuine ones I see for sale all have the port cutouts where my old one does not. Only recently purchased and appeared to run ok but was leaking around the base gasket when hot. Many thanks for any advice. Cheers Rob from NZ. My advice would be to buy a genuine YAMAHA gasket 38V-11351-10 . Yes the gasket should have port cut outs so that fuel flows easily up to the top of the piston from the crank case. and to the crank bearings also. Edited June 21Jun 21 by Tr1AL
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