Carburetor Carb For Honda TRX Foreman TRX450ES S FM FE 1998-2004 US. Carburetor For HONDA TRX FOREMAN 450ES /S/FM/FE CARB. Carburetor For Honda TRX450ES Foreman 450 TRX 450 1998-2004 Carb New..HONDA TRX125 ATV of year 1985-1986. For Honda TRX125 1985-1986 ". We do appreciate if you could make a positive comment after deal. Your comment is so precious and important to us! Intake Diameter: 22 CARBURETOR FITS HONDA TRX 1985 1986 ATV CARBURETOR NEW CARB Fits: .Tuning Your TRX 2.5, 2.5R and 3.3 Engine for Best Performance. The Fuel Mixture. The engine 's performance depends on the fuel mixture. Turn the mixture needles clockwise to lean the fuel mixture and counterclockwise to richen it. Leaning the fuel mixture will increase engine power up to the engine 's mechanical limits..