Review on Carburetor Sportrax Fourtrax 1993 2005 16100 HP2 673 by John Walker

Likes: - Carburettor fits my 2004 TRX90 perfectly - Fuel tap works great - Throttle cable is smooth - All adjustments work as they should. (air screw, idle adjustment) Now what you need to know. To make it work on your TRX90 you need to resize the jet. The injectors and needle that are installed in this carburettor are more suitable for 50cc or 70cc engines. Look, they're really small. If I remember correctly it was the 32nd pilot and the 72nd main. The supplied needle should also tilt. If you install it on your TRX it's ready to run and that's it. USE THE ORIGINAL NOZZLES AND NEEDLES FROM YOUR TRX CARB or equivalent size. I recommend 42 Pilots and 82 Mains if you have a big gun exhaust. Stock exhaust recommends 42 Pilot and 80 Main. You have to make it perform like a champ at or below 2,500 feet above sea level.