CCM 644 Pilot Jets


Please remember that there are 2 carbs = 2 of each jet required. 

When replacing the standard silencer with a race item, we advise the following jetting:

  • 135 Main jets/25 Pilot Jets - Air box lid kept on
  • 150 Main jets/25 Pilot Jets - Air box lid removed
Standard size pilot jet for 644 models using the road legal silencer.

Pilot jet for 710cc big bore kit.  Two required.