I'm starting to get some minor backfiring on my Sporty. It just started recently with the weather getting a little colder. The bike runs fine and does'nt cut out or stumble. It does it mostly on engine braking(deacceleration). I searched for backfire threads but they all seem to be about carbed bikes.
Any ideas?[sm=biker.gif]

 

Can't happen. Everyone knows the EFI eliminated all of the backfiring and carb farts issues. It's a much superior fuel system. [:@]

Sorry for the smart *** reply. I mostly did it to bump your post to see if someone with an EFI bike might could help you.

 

What all have you done to your bike? Any fuel management system?
I have the Power Commander III USB and I also seem to be getting a little more popping from the exhaust since the weather turned cooler.

 

I've been getting the same thing. I had the SE/AC and download donelast winterwith SE slip-ons. I thought the cause was when I changed to V&H slip-ons a few weeks ago. It's not that bad and was just blowing it off.

 

[sm=funnypostabove.gif]

 

My 08 1200C isstill bog standard with no mods made. Weather has got very cold over here, but I havent noticed any of these symptoms.

 

Hey I thought FI was suppose to adjust for this stuff and solve carb farts.

I can't really help you. If you tuned it yourself with something like a PC3 or SERT, then you will need to retune it. Otherwise, that shouldn't happen.

There is always the carb mod: since my carb doesn't do that in cold weather.

 

It's as simple as finding the secret, mixture adjusting electrons, and backing them out a 1/4 of a turn.

 

I test rode a 2007 that would back fire thru the intake even with the EFI. No thanks.

 

It did solve carb farts, there's no carb on it.
I have never heard a pop or fart come from the intake on mine, just some pops from the exhaust. Just have to get it tuned better just like you would have to do on a carbed bike.