Jetting is an art more than a science.

Some basic jetting tips are as follows:

• If your spark plug is very very clean looking you are running too lean. (not getting enough fuel)
  Try a larger jet.
• If you spark plug is very very dark looking, you are running too rich. (getting too much fuel)
  Try a smaller jet.
• There is no RIGHT jet kit for each model of engine. Certain factors such as elevation can affect your jetting needs.

Try some of the tips listed above. If they don't work for you, contact us via e-mail, with your zip code, and we can try to help you out!

TheCRKid@tboltusa.com