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Buell Motorcycle Forum » XBoard » Buell XBoard Archives » Archive through May 10, 2005 » Slow running difficulty « Previous Next »

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Morts
Posted on Monday, May 09, 2005 - 04:43 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Hi,
So i've got the XB9S with XB12 air box race kit and svvs.
TPS has been re set and it pulls like a train.
My journey in the morning is about 30 miles through the Cotswolds in to Oxford and then through the City.
The bike runs perfectly at high revs ( which its at most of the time ) but when I try and keep to 30, I drop it into 4th running at around 2000 revs and the bike is rough, if i gently increase the throttle say from 20 to 30 its fine. It is just when i try and keep a constant 2000.
You State side guys have to understand there are speed cameras here and in town they catch you easy. The traffic is quite heavy, you hop from one car to the next and it doesn't feel as smooth as it should.

Has any one else had this problem or is this just the Buell way

Cheers

Morts
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BadS1
Posted on Monday, May 09, 2005 - 04:45 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Try running 3rd gear when your only doing 20 or 30.Sound like your lugging the motor.
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Mikej
Posted on Monday, May 09, 2005 - 04:50 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

2500rpm minimum, 3000rpm is better and smoother, 2000rpm is just too low to run smooth in some of these engines.

"These ain't no Harleys". YMMV.
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Cataract2
Posted on Monday, May 09, 2005 - 04:51 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

2K revs is just starting to get into the lugging area of the motor. Keep the revs up and it will be fine.
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Hogs
Posted on Monday, May 09, 2005 - 04:55 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Morts at 2000 rpms you should still be in second Noway in 3rd and don`t even think about 4th in and around town at them speeds...

4th at 2000 good way to shorten the life of your motor at then speeds in and around town
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Morts
Posted on Monday, May 09, 2005 - 05:06 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Thanks Guys,

Glad its not my bike, ill use a lower gear

Cheers
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Buelltroll
Posted on Monday, May 09, 2005 - 05:06 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Thats what I was thinking FOURTH FOR 30 MPH!!??
way too high of a gear keep it in first or second.
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Tank_bueller
Posted on Monday, May 09, 2005 - 05:08 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Like said above, I try to find a gear that will let me cruise at about 3000rpm. It's nice and smooth, and throttle response is good there too.
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Tomzweifel
Posted on Monday, May 09, 2005 - 07:58 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

I'd agree completely. 2K is lugging the engine. 3k is minimum.

At 3,000 rpm:
30 in 2nd
40 in 3rd
50 in 4th
60 in 5th.

For 30mph, run it in 2nd if you can, 3rd if you must. But not 4th.
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Arkane
Posted on Monday, May 09, 2005 - 09:02 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

of course the other fix is this or something like this
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Buellj79
Posted on Monday, May 09, 2005 - 10:18 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

I like to run at 4000 to 5000 for that arm ripping roll on torque. D&D's rip
Later J
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Bbstacker
Posted on Monday, May 09, 2005 - 11:38 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Yikes! I don't usually go to 3rd until I'm past 40 mph. At 20-30 2nd is the gear for this engine.
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