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honda trx 400

  1. Honda TRX
    Hello! I have a 2006 Honda trx 400ex: quad is internally stock, has a fmf powercore 4 slip-on exhaust, K&N air filter with the airbox lid taken off. The jets are a 165 main and 38 pilot. The quad ran fine with these jets and was done professionally. The carb has been cleaned many times and...