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Buell Forum » Big, Bad & Dirty (Buell XB12X Ulysses Adventure Board) » BB&D Archives » Archive through July 03, 2010 » ? about leaking intake « Previous Next »

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Pso
Posted on Friday, June 25, 2010 - 08:15 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I am starting to feel like a chromnic complainer but here goes. My voltage is back to where it should be, I have no idea why. Now the bike does not run well. It feels as if it has very bad gas. It sort of has that bumpy hesitant feeling until well up in the rev range (over 4K). I reset the TPS and then did the drive holding steady around 3K rpm for an extended period to reset the AFV. I ran out the gas, got some new stuff and the problem continued. Is this a sign of an intake seal leak? electrical problem like the spark plug wire shorting out as has been reported, etc. Where do you folks recommend to be the best place start a search for this problem?
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Badrap
Posted on Friday, June 25, 2010 - 11:43 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I had a similar problem on a bike once and it was a partially obstructed intake. Worth a check.
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Ratbuell
Posted on Friday, June 25, 2010 - 08:45 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Intake leak is easy. Spray brakleen or carb cleaner at the seal where the intake meets the head while the bike is running. If the bike stumbles or dies, you found your leak.

Remove your plugs. If one is black and one is gray/white, your black one isn't firing properly. Either a bad plug or a bad wire. I seem to recall the other thread, you found a bad / not all the way in spark plug? Did you replace it? Clean it? Or just screw it back in? Any time mine are out, they get the wire wheel on the bench to clean the electrode of any gak, and regapped before they're reinstalled. Sandpaper folded in two (sandy side out) also works, slide it back and forth between the electrodes to clean the contacts and then regap.

Do you have a shop manual? It has real good troubleshooting information in it...
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