Not necessarily, if he has unspent fuel coming out of the chamber then igniting later, it would back fire.If it's backfiring your a bit lean, can you post pics of the plug?
Go to YouTube, there's plenty of clips.how does that hmf sound on the 700 xx ????
I just bought the fmf power programmer...will I have to send mine in to get it mapped also.I have the fmf 4.1 complete with powerbomb header.i was having a lot of the same problems with my fmf efi and took it in and had it maped out on the computer because u want your whole ari/fuel curve to be right so some stages need to be a bit lean and other fatened up. after that mine has run excilent and even gained a few hp
Any other mods? Is the airbox lid on or off? I think HMF settings are based on the lid being off, (again, not positve on that) so if you are still running with the lid on, that could lead to a rich condition. Also, do they have different setting for a slip on compared to their full exhaust, something else to check on. Have you tried to call HMF and discuss your setup with them?I have the HMF slip-on with the HMF optimizer. I have been runnin it with the recommended settings from HMF but it is running to rich, So does anyone have any suggestions for different/better settings?
i would run it first and check the plug and smoke the common sense stuff etc and see how she runs. my quad ran fine and i didnt notice anything in the dirt it was in the sand under heavy load where i had problems. i will check my setting and give them to you if you would like.I just bought the fmf power programmer...will I have to send mine in to get it mapped also.I have the fmf 4.1 complete with powerbomb header.
thanks.I'm waiting for the programmer to get in to put it on.I also plan on running it with paddle tires in the sand also...yes I would really like to have those settings.r u running yours with or without lid?what kind of air filter ?i would run it first and check the plug and smoke the common sense stuff etc and see how she runs. my quad ran fine and i didnt notice anything in the dirt it was in the sand under heavy load where i had problems. i will check my setting and give them to you if you would like.