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1Don

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  1. Hard starting 78 TY 250

    1Don posted a topic in Yamaha
    Hello, I recently bought a 78 TY 250. It is next to impossible to start cold unless you push it. Once it is running, it goes great. I cleaned the carb and checked the compression. The compression is 90. I have a new top end off a 2nd donor bike that is new I was going to swap out. I cannot find the specs for compression anywhere. Is the 90 compression the problem and if so, I have not been able to find the head gasket and bottom gasket. Any advice would be appreciated! Thanks! Don

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