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Buell Forum » Old School Buell » Archive through August 28, 2010 » Lean Condition « Previous Next »

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Buellish
Posted on Wednesday, August 25, 2010 - 12:38 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)
The S2 is experiencing an extreme lean condition.When you pin the throttle,its as if your pulling a boat anchor.
The last tank of fuel I ran it got 62 mpg and normal is 50-52 mpg.
I checked for an intake leak and didn't find one.I also just swapped the 1 5/8 K&N for the 2" off my Parkway Blue S2T.I can't imagine the swap making that much difference.
Anyone have any thoughts?
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Kilroy
Posted on Wednesday, August 25, 2010 - 02:19 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)
Maybe look towards the lean condition being caused by not enough fuel, not by too much air.
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Buellish
Posted on Wednesday, August 25, 2010 - 03:32 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)
Tom,I know its probably fuel related,I'm just letting you know what I've changed recently.
I just don't know where to start with the fuel system.

Thanks
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F_skinner
Posted on Wednesday, August 25, 2010 - 03:44 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)
Start with the carb. It might need a rebuild if it has been done in a few years
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Jramsey
Posted on Wednesday, August 25, 2010 - 03:47 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)
Checked the fuel filter?
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Buellish
Posted on Thursday, August 26, 2010 - 01:13 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)
The filter turned out to be clean.So as I was pulling the carb I looked down and said to myself "there's your problem".I have a crack in the carb top.No vacuum,no piston rise.
They wanted to sell me a chrome "Bar&Shield"
top for twice as much as the OEM black piece.
A friend in service is bringing one in from home tomorrow.
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