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Hi,I have an 03 msx that has a damaged piston in the middle cylinder.the piston has a chunk missing from top on exhaust side along with a hole burnt on side about where the rings set.I have already pulled the fuel pump and the regulater is intact.I bought this polaris in this condition.I suspect bad gas or possibly an air leak. or could this be a bad fuel injector?anyone know what caused this or had this paticular thing happen before?please help! btw other 2 pistons/cylinders were in good shape.I will post pics if needed
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Re: POLARIS MSX...damaged piston with hole burnt in side!
could be a bad injector or fuel pump issue ( low fuel pressure ). Also possible air leak.SBT Tech Support is here to help with your problems.
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