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kansasboy911

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  1. kansasboy911 posted a post in a topic in Yamaha Workshop
    I own a 1983 Yamaha 650 maxim. I got the bike with no exhaust, so I installed headers. Also I replaced the factory air box with regular filters, 1 per carb. Now the bike runs so lean it pops through the exhaust, and runs hot. The bike has the factory main jet size of 110, what size should I be using??