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Buell Motorcycle Forum » Old School Buell » Archives OSB 001 » Archive through March 17, 2007 » A drop in fuel mileage; severe hesitation « Previous Next »

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Rock
Posted on Tuesday, March 13, 2007 - 03:28 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Hello all!

My scooter is sick! For the first time!!

It's a 2000 X-1 Lightning with the air box modification (and K&N), the race ECM along with a Supertrapp exhaust.

In the past month, the mileage has dropped to the low 40's and the bike has a bad hesistation when rolling on the throttle at around 3500RPM; it feels like the fuel filter is plugged--the bike has 9700 miles. Original fuel filter--could this be the problem?? Any input will be appreciated...

Bruce
Leander (Austin), TX
}}
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Rock
Posted on Tuesday, March 13, 2007 - 03:40 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

BTW, I've ordered the filter (I work in parts at Central Texas Harley in Austin) and will install it ASAP.}}
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Naustin
Posted on Tuesday, March 13, 2007 - 04:54 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Check for lean condition due to intake leaks. I had a similar problem, read my profile to see if it sounds similar to you...
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Cbrxxblackbird
Posted on Tuesday, March 13, 2007 - 06:05 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

How about bad gas?
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Ratbuell
Posted on Tuesday, March 13, 2007 - 10:31 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

My vote(s)?

Zero the TPS
Check for intake leaks
Install the new filter
Freshen the gas

....and, most importantly:

RIDE IT MORE!!! : )
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Oldog
Posted on Wednesday, March 14, 2007 - 12:11 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

the mileage has dropped to the low 40's }}

Also check the Engine temp sensor

(Message edited by oldog on March 14, 2007)
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Kyrocket
Posted on Wednesday, March 14, 2007 - 10:18 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

You work at a dealership? Ask a mechanic! BUT if they are anything like the ones I've used locally you will probably get better information here
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Chasespeed
Posted on Wednesday, March 14, 2007 - 11:37 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Low 40s huh? Not too bad...hahaha.. must not ride like me..

Anyway...

Do the sensor checks, on O2 and head temp...

IF they check out, check your intake seals, they are probably dry rotted...BUT... check them anyway...


Next, check your fuel pressure, and listen to the pump when you first get ready to start it...

The was what mine did right before it went all to hell...

Acceleration....nah, wasnt happening..

But, could also be bad gas...

And, Corpus down here....

Chase
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Rock
Posted on Wednesday, March 14, 2007 - 04:09 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Thanx, all for your responses...I will investigate fully your suggestions! I'm looking forward to a strong running machine soon!!

Regards.
}
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Phat_j
Posted on Wednesday, March 14, 2007 - 08:31 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

my vote goes to the temp sensor..... i was thinking that as i read this, but oldog beat me to it.....
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Oldog
Posted on Friday, March 16, 2007 - 12:08 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Thanks Phat_j
Great minds think alike..

symptoms point that way ..
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Mbsween
Posted on Saturday, March 17, 2007 - 01:04 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Mine did the same stuff when the Engine Temp sensor went bad, wait long enough and it will start fouling plugs like a two stroke
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