The motor, a CT Racing 350PV (covered in part 3), has held up

great with zero problems. Feeding this motor is a Delta Force reed cage and a 39mm PWK carburetor (with a CR250R intake boot) attached to a high quality Motion Pro cable and twist throttle. To get maximum airflow to this hungry motor we removed the stock air box and used the ESR air box eliminator kit with a K&N like filter wrapped in an outerwear. For a clutch we used a Barnett with a Hinson basket along with the Billetanium Hydraulic clutching system. Something we learned from Barnett was that the springs for the TRX are stiffer than the springs from a CR500. The Barnett TRX springs are rated at 72 lbs. at one inch compressed while the CR500 springs are rated at 57 lbs. We always assumed that the CR500 springs were stiffer. This is mainly due to the fact that the CR500 has 6 springs while the TRX has 5.
The exhaust side gets an ESR TRX5 pipe and silencer, which pulls and revs hard anywhere in the powerband. To keep track of the engine temperature we added an ESR in-line water temperature gauge. Since our motor is set up for high compression (220 psi) we need to run high-octane race fuel. We chose the high quality, VP C-12 108-octane fuel. We run it straight mixed with Maxima Super-M 2-stroke oil.