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Buell Forum » Old School Buell » Archives OSB 001 » Archive through June 29, 2006 » Thunderbolt Problem HELP!! « Previous Next »

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Bartman
Posted on Tuesday, June 13, 2006 - 05:40 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

My 2001 S3 is not running well at all!!
I took it to harley and they plugged it in and said that it is not showing any codes. though it is idling fine once you put some throttle to it, it bogs down and has no power, I have blown through 4 sets of plugs, replaced the coil and O2 sensor and still running awful!! has anyone had this problem or can diagnose it to gu=ive me some idea as to what to do next. I don't want to keep guessing and throwing parts at it that don't fix it.
any help would be appriecated.
thanks
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Jersey_thunder
Posted on Tuesday, June 13, 2006 - 06:04 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

NEED MORE INPUT..backfire/spitting/recent work done to it...etc.

jt
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Natexlh1000
Posted on Tuesday, June 13, 2006 - 06:58 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

It could be a TPS issue.

My throttle shaft went bad and the engine acted like that. My TPS wasn't turning along with the butterfly.
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Oldog
Posted on Tuesday, June 13, 2006 - 10:02 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

check for :
fuel starvation

tank breather // vent
fuel filter

bad data
throttle shaft
tps off [ reset]
AFV off due to fuel exhsaustion [ reset ]

temp sensor (aft head, mixture will be all over the place)it may not show bad but can be shifted.

temp sensor (air inlet) off mixture off

air leak from intake manifold seals lean mixture
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Firemanjim
Posted on Wednesday, June 14, 2006 - 02:14 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Define"blow through 4 sets of plugs"---too rich???
Check engine temp sensor and O2 sensor making sure connections are good.
Really need more detail on symptoms!!!
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Denfromphilly
Posted on Wednesday, June 14, 2006 - 11:56 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Someone recently had similar symptoms from a baffle that shifted in the exhaust impairing the flow of gases.
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Josh_
Posted on Wednesday, June 14, 2006 - 12:09 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 very similar problem due to clogged injectors.

How did the plugs look?
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Retired_cop
Posted on Thursday, June 15, 2006 - 09:57 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Believe it or not, a K & N air filter installed backwards and plugging up the intake on the back of the stock air box will cause the exact problems described.
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Sloppy
Posted on Thursday, June 15, 2006 - 03:21 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Check your muffler for an obstruction or loose packing. If it's a Supertrapp the inner cannister can work loose and plug your exhuast -- especially on acceleration!
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Bartman
Posted on Thursday, June 15, 2006 - 04:08 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

thanks guys

my tech took out the injector and they are bad as well as the circular valve we are replacing them and hopeing for the best
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Oldog
Posted on Friday, June 16, 2006 - 01:04 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

well as the circular valve we are replacing them and hopeing for the best

what is a circular valve?
do you mean throttle butterfly or the breather valve for the tank?}
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Natexlh1000
Posted on Friday, June 16, 2006 - 05:47 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Which injector? both?
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Phat_j
Posted on Friday, June 16, 2006 - 09:52 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

hoping for the best....... dosent sound like a tech i want working on my bike
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