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2000 banshee not firing

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I have a 2000 yamaha banshee that is dual piston and dual carbed that runs on methanol. As you sit on it, the left piston is firing but the right one isnt. I changed the spark plugs and i checked the fuel lines and still nothing. Anyone have any possible idea whats going on?

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Have you done a compression test?


No, i havent hooked it up yet but when my buddy and i were trying to bump start it, there was air coming from the non-firing side exhaust

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Piston rings are gone, no compression. Those bikes are notorious for doing that.


I know that the guy before me did some drag racing on it. This is what he did to it but i’m not sure how long ago:
new cylinders, pistons,19cc domes,dynatec cdi,stator, adjustable timing plate.

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