This pilot jet will fit CCW 250cc motors. For closed circuit race use only!
This is exactly what it sounds like it is, a #45 Pilot Jet
If you have performed modification to your motorcycle and you just can not seem to get it to idle correctly, you need to increase the size of your pilot jet from the stock configuration, this is the cure. The #45 pilot will smooth out the transition from idle to open throttle so the bike does not starve for fuel.
All the adjustment you need to tune in your carburetor for performance on the race track. Altering the jetting on bikes used on public highways is illegal, this item if for closed circuit competition/race use only.