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yfz450carb/trx450mod

  1. 08 trx450 might have a YFZcarb on it??

    Engine
    Working a buddy’s quad trying to tune it in. Runs like dog shit. it’s not a oem engine. has had head ported I kno far as I’ve gotten into it. Not sure what cam or size piston or if valves are oem. Well the carb on it is not the same as my 08 trx FCR I have on my race bike or my 04 trx practice...
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