Sputtering and backfires

[smokster]

Every now and then I experience a delay or sputter.
Today I lit up the tires and heard a loud backfire as well.
Anyone know what this could be from.
I have 22k and have replace my exhaust gasket at 12k...could this be another one?

 

[Antonio]

Sputtering

:dontknow:The sputtering you are talking about is in the begining on 1st and 2nd gear? I am having that problemas well.

 

[smokster]

:dontknow:The sputtering you are talking about is in the begining on 1st and 2nd gear? I am having that problemas well.

kinda both

 

[bone crusher]

I get backfire only when I slow down in 4th gear...very odd...and only happens on occasion.

I thought maybe the hindle had a problem or a gasket is going, but it's not 100% and it seems, at least for now, to only be in 4th gear...

Ideas?

 

[aka1004]

same problem no solution

 

[NancysToy]

Check for bad plug wires. Also, the gaskets could well be bad again. They say every 12K, but many have gotten much less.
-Scotty

 

[GA-SPYDER]

Every now and then I experience a delay or sputter.
Today I lit up the tires and heard a loud backfire as well.
Anyone know what this could be from.
I have 22k and have replace my exhaust gasket at 12k...could this be another one?

I did the same thing about a month ago, exhaust got kind of loud (stock exhaust), and found out that the right side gasket had blown. Ordered replacements and fixed it.
Now I have a new problem. Two weeks ago, pulled out from a stop sign, :spyder:stumbled, and the check engine message came up. Pulled over, shut the bike off, and re-started. All seemed to be O.K. Now, if I am riding at a steady rate, I can feel a slight stumble and even a small backfire. If I give it gas, it pulls like normal. Wierd. Only about 6k on her.
Scotty, got any ideas?:dontknow:

 

[NancysToy]

I did the same thing about a month ago, exhaust got kind of loud (stock exhaust), and found out that the right side gasket had blown. Ordered replacements and fixed it.
Now I have a new problem. Two weeks ago, pulled out from a stop sign, :spyder:stumbled, and the check engine message came up. Pulled over, shut the bike off, and re-started. All seemed to be O.K. Now, if I am riding at a steady rate, I can feel a slight stumble and even a small backfire. If I give it gas, it pulls like normal. Wierd. Only about 6k on her.
Scotty, got any ideas?:dontknow:

Stock exhaust or aftermarket? What brand? Any other performance mods?
-Scotty

 

[WackyDan]

I get a lot of "coughs" from the intake.

 

[nickcaro]

seems like anytime the temp is above 70 and the engine gets warm I start to stutter. Get up to speed and all is well, but then when I drop back down in traffic it acts up again....

If I let it sputter long enough it just shuts down. Then on restart it runs well for about 10 minutes before it acts up again... kind of like needing a reboot. It's a hassle, but not bad enough for me to drop off at the dealer... not yet.

 

[GA-SPYDER]

Stock exhaust or aftermarket? What brand? Any other performance mods?
-Scotty

Engine wise, all stock. No power adders. It's at the local dealer as of Saturday. The service writer said that they have had several with fouled plugs. First time I had heard that. It hasn't been to a dealer since I bought it a year ago. Do my own oil changes/mods. I hope I haven't opened a keg of worms. The dealer hasn't been too frendly cause I didn't buy it there. (first post without a :thumbup

 

[draboo]

I have a Hindle installed. I notice when I let off the throttle for an extended period and then accelerate, I will get one or two loud "POP" s and then a bit of hesitation. Nothing really bothersome,tho.

 

[bone crusher]

I have a Hindle installed. I notice when I let off the throttle for an extended period and then accelerate, I will get one or two loud "POP" s and then a bit of hesitation. Nothing really bothersome,tho.

I get this in 4th gear only...odd...don't feel the hesitation though...

 

[Juice2Boost]

i get this so often...ill rev the bike to rev match on a downshift and it will backfire

 

[BLACK WIDOW]

Backfire

I have a Hindle installed. I notice when I let off the throttle for an extended period and then accelerate, I will get one or two loud "POP" s and then a bit of hesitation. Nothing really bothersome,tho.

I think that is pretty normal--Mine will occasionally backfire when I ride as you described. There are others that I ride with that also have Hindles and theirs do the same. The backfire is not bad just a little popping. :f_spider:

 

[jessen]

Valve timing

I just got off the phone w/ a dealer who stated that the bike shouldn't sputter because of the fuel injection and odds are its the valves. He informed that the valves usually need to be adjusted at 8k and 12k, and mine's right at 12k so that makes sense.

hope that helps!

 

[boborgera]

I just got off the phone w/ a dealer who stated that the bike shouldn't sputter because of the fuel injection and odds are its the valves. He informed that the valves usually need to be adjusted at 8k and 12k, and mine's right at 12k so that makes sense.

hope that helps!

Most backfiring [popping on decel] is caused by a lean condition, A free flowing air intake and /or free flowing exhaust,
Without adding extra fuel will cause a lean condition.

 

[napper39]

if you dont have the o2 mod you might try it i got thr open exaust and filter so i put on the o2 mod and it runs grate.:thumbup:

 

[ataDude]

... He informed that the valves usually need to be adjusted at 8k and 12k, and mine's right at 12k so that makes sense.

Personally, I'd be more than a little concerned about your dealer. I'm not sure I've ever heard of one needing valves adjusted that early... particularly the "usually..." part.


.

 

[NancysToy]

Personally, I'd be more than a little concerned about your dealer. I'm not sure I've ever heard of one needing valves adjusted that early... particularly the "usually..." part.


.

:agree: Dealer is unscrupulously trying to drum up unneeded service business.