Jump to content
Sign in to follow this  

PLEASE HELP 2003KTM250SX

Recommended Posts

hey I need help I have a pop/hangup sound from exhaust when I let off the gas. here is a video to help you understand https://www.youtube.com/watch?v=JYTPJYT4S4E. im running  1/2 turn on air screw, 1 jet size leaner on idle n main. 1 clip leaner on needle then recommended.  pro circuit header an fmf exhaust with fresh spark plug and air filter. I went to stock jets and it still made that sound. Its really boggy down low it wont reach powerband on hills. then hits real fast and real hard its intense. Plug is always black no matter the jetting. PLEASE HELP ME!!

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Reply with:

Sign in to follow this  

×
×
  • Create New...