2004-2009 Honda TRX450R/TRX450ER Service Manual, Page 148Get this manual

2004-2009 Honda TRX450R/TRX450ER Service Manual, Page 148

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FUEL SYSTEM (After '05) Remove the needle holder and jet needle
Remove the throttle valve plate from the throttle valveCheck the throttle valve, throttle valve seal and throttle valve plate for