ok i've searched and read through alot of posts on backfiring but never really read a resolution.......here is my problem.....i'm running a HMF pipe, DJ 170 main jet and K&N filter.....my needle is set on the second notch from the top....1st question....when they say second notch..is that from the end that has the point or the end where you adjust the clip.....2nd question....when i'm at high RPM's and let off the gas a little bit (not completely), my bike starts to backfire and even shoots the blue flame.....what suggestions does everyone have to help me out with this problem......am i getting too much fuel or too much air.....i did adjust my a/f screw to 2 1/2 turns out......i'll check the plug to see what color it is as well but any help on this would be great.
I am running a 172 jet. why did you make an adjustment on the needle setting? this i have seen cause some backfiring problem even though it should just help idle into very low range. never have adjusted them unless i had a major altitude change. usually it is a lean problem if it is backfiring out the exhaust at almost or at wot.
This is an older thread, you may not receive a response, and could
be reviving an old thread. Please consider creating a new thread.
Honda Foreman Forums
Honda Foreman Forums: Discuss the latest Honda Foreman in our free Honda Foreman forums. Also talk about Honda's other ATV and UTV's including the Honda Rubicon, Honda Rincon, Honda Rancher and Honda Recon