Re: 4 stroke motor for 1990 EZGO
You will have to accept that 2 strokes are intrinsically more noisy that 4 strokes. This is because, whereas the explosion of a four stroke is entirely contained within the cylinder, on a 2 stroke the exhaust port opens during the explosion. This means that the engine is very hard on the exhaust gasket. I would be tempted to buy a set of exhaust gaskets for it (they are just a few dollars each) and replace the cylinder to pipe and pipe to muffler gasket. It might also be worth using a little high temp gasket goo as well.
Dave
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