TB Main Jet Kit – #75 #78 #80

TB Main Jet Kit – #75 #78 #80

Dial in the performance of your small-bore engine with our precision Jet Kit designed specifically for TBparts 20mm carbs, 18/20mm Keihin carbs, and KLX110 carburetors.

This kit includes the following main jet sizes: #75 #78 #80

(For reference, the TB 20mm carb stock size is #89.)

This jet kit is ideal for small bore engines—72cc and below, providing improved tuning capability for smoother performance and better throttle response.

Important Fitment Note

These jets ONLY fit TBparts 20mm carbs, 18/20mm Keihin carbs, or KLX110 carbs.
If you do not have one of these specific carburetors, do not purchase this kit.
There are no returns or exchanges on jetting products.