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Alexfiggy
Posted on Tuesday, August 08, 2006 - 03:16 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

my bike is back firing as i release the gas what do you guys think. i have a race kit installed and a open air box.
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Wes12185
Posted on Tuesday, August 08, 2006 - 03:44 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

run higher octane gas, that will cut it down. I have the race kit, and even running 93 octane I still get a tiny bit in mine.
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Pwnzor
Posted on Tuesday, August 08, 2006 - 03:49 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Get your ecm remapped for the open airbox. Mine was popping and snapping and backfiring until I went back to the stock airbox with the factory race kit.

Al at American Sport Bike does it, and I think other sponsors may as well.



(Message edited by pwnzor on August 08, 2006)
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Alexfiggy
Posted on Tuesday, August 08, 2006 - 04:34 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

im running super in it.ill try putting the old air box cover again and see if it stops do i need to unplug the bat for a bit and then ride a loop
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Slaughter
Posted on Tuesday, August 08, 2006 - 05:46 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

CHECK your exhaust flanges. If you have a flange nut coming loose or a busted stud, it'll do it too.
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Pwnzor
Posted on Tuesday, August 08, 2006 - 05:50 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

yeah, what Slaughter said, the seal where the header meets the pipe. That can cause popping but not backfiring though.

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Skully
Posted on Tuesday, August 08, 2006 - 06:27 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

When was your TPS reset last?
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Slaughter
Posted on Tuesday, August 08, 2006 - 06:33 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Pwnzor does make a good point. It is not a true backfiring when the exhaust leaks by the port like that. True backfire is kinda rare in most FI systems when the ECM senses a closed throttle, the fuel is shut off. Carbs still suck some gas into the system.

The Popping, I've experienced and when I've pulled in, have always found that I broke a stud, had a nut back off or something.

(Message edited by slaughter on August 08, 2006)
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Alexfiggy
Posted on Tuesday, August 08, 2006 - 08:03 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

well ill check all the nuts and studs in the race can and the pipes
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Alexfiggy
Posted on Tuesday, August 08, 2006 - 08:05 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

tps reset was like when i had the race ecm put in that was like half a year ago
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Pwnzor
Posted on Wednesday, August 09, 2006 - 12:57 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

when I had the open airbox I had apparently random incidents of backfiring. Each time the circumstances were different, but the one thing that was the same was... the open airbox. Since I have switched back, about 2 months ago, it has not backfired once, and my decel popping gradually disappeared.

Honestly I didn't really notice a power increase by opening the airbox, and the bike seemed to run a lot hotter too. Also it was giving me a headache listening to the intake noise. I sort of liked the noise at first but I quickly tired of it.



(Message edited by pwnzor on August 09, 2006)
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Alexfiggy
Posted on Thursday, August 10, 2006 - 09:46 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

well im going to take it back to the dealer to get a tps reset i have to put all the old stuff back on the bike. i hope i can get the snorkel back in the frame.
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Ricochet
Posted on Thursday, August 10, 2006 - 10:07 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

My 03 XB9R backfires on decel since the race kit was installed a year ago. I assumed it was normal. Had it at the dealer to reset the TPS, they called me and said it needed intake seals. It didn't make any difference, still backfires. Unless somebody knows for sure, I'll assume it's a matter of the way the fuel map is set up for decel? Just curious, do you notice a huge flat spot between 4000 and 5000 RPM?
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Buellicrat
Posted on Thursday, August 10, 2006 - 11:12 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Just curious, do you notice a huge flat spot between 4000 and 5000 RPM?

Ricochet, you must have the pro series ecm, air filter, and exhaust? I have complained to the Dealer about the same problem. The mechanic who also has the xb9 said that it is normal. However, if modify your exhaust, you can change that. It's the way the pipe is set up. Apparently, no matter what pipe you have, it will flatten out slightly at 4 grand, but will pick up at 4500. I am trading my pro series for a Drummer. I don't care if its louder. The consensus is that its the best set up. Also, my bike pops constantly.
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Alexfiggy
Posted on Friday, August 11, 2006 - 03:10 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

thanks guys. i guess im not the only one with a popping buell
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Pwnzor
Posted on Friday, August 11, 2006 - 03:22 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I don't care if its louder. The consensus is that its the best set up.

Really... what consensus do you refer to Buellicrat?

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Alanshouse
Posted on Saturday, August 12, 2006 - 10:17 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Mine back fires, but I didn't worry about it until it stalled twice the other day.

It hasn't stalled since though.
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Cmm213
Posted on Saturday, August 12, 2006 - 01:28 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I had a cut up air box too and had some issues here lately. I also went back to the closed box and my popping and pinging stopped, my bike feels just as strong.
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Alexfiggy
Posted on Saturday, August 12, 2006 - 03:25 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

i just dynoed my bike im running to lean.i need a remapped ecm
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Pwnzor
Posted on Saturday, August 12, 2006 - 07:39 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Like I said, talk to Al at American Sport Bike
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