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Buell Forum » Knowledge Vault (tech, parts, apparel, & accessories topics) » Troubleshooting (Poor Starting/Running/Handling/Ride Issues) » Archive through August 08, 2007 » Help diagnose 03 xb9 power loss « Previous Next »

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Mdm
Posted on Sunday, July 08, 2007 - 08:19 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

xb9s 03

last week idle was hunting, 800-1100. i adjusted it a hair over 1000 cold start and idle is good. now i have a massive hole between 4000-5000. Full throttle at 4k and the bike does not even move. if i get it over 5000 power is back ? No CEL,

Would a TPS reset fix this, if not other things to check ?

Bike has 6k on it, at 5 i changed oil,plugs,filters and it has been running like a champ (i did have to replace the temp sensor aound 3k)

thanks
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Sparky
Posted on Monday, July 09, 2007 - 11:15 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

How did you adjust idle speed? The correct way is using the knob at the front of the bike; the wrong way is to adjust the throttle plate stop screw. If you did the latter, you messed up the throttle position setting and would require a TPS reset procedure.

TPS zero reset is normally done at 10k intervals but could be done more often if driveability problems arise.

You should ride the bike at 3 to 3.5k rpms in the top gears for about 10 minutes or so. This will normalize the AFV (related to the O2 sensor) setting and may fix your problem.
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Mdm
Posted on Monday, July 09, 2007 - 11:29 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

U used the knob at the front. I have ridden then bike around 3200 for a while time to do this, thanks.

I thought is was weird that my idle started hunting thus I readjusted (too high the first time) a few times. Idle is good, revs return to normal when stopping but now I have this giant hole betwn 3-4k. Full throttle just boggs betw those rpms.
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