Started backfiring, not running idle, lost of power?????

1 reply to this topic
  • mifun3

Posted August 30, 2008 - 07:22 AM


Buddy just bought a 02 wr426, after a 2 hour ride the other night bike started backfiring no idle .....

Changed the spark plug and gapped.
Checked cap vent-good

Read maybe carb dirty tps cdi????? Flywheel key sheared??

Any suggestions?


Visit the ThumperTalk Store for the lowest prices on motorcycle / ATV parts and accessories - Guaranteed
  • brad the best

Posted August 30, 2008 - 11:07 AM


unplug tps .

clean the carb .

make sure intake boot seated right . no air leaks .

clean the air filter .

buy new gas .

what color was the spark plug ?

check flywheel key .

check connections .

replace cdi

thats the order i would go with

and since he just bought it i would check the valves , not that its your problem but it is a good idea .


Join Our Community!

Even if you don't want to post, registered members get access to tools that make finding & following the good stuff easier.

If you enjoyed reading about "" here in the ThumperTalk archive, you'll LOVE our community. Come join ThumperTalk today!

The views and opinions expressed on this page are strictly those of the author, and have not been reviewed or approved by ThumperTalk.