Running lean?
Outstanding HDF Member
Joined: Nov 2018
Posts: 3,421
Likes: 726
From: Tiffin,Oh
My bike sat for years. Then wouldn't run right. Barely made it home after it warmed up. I'm not a carb guy, but tore it apart and there was a crack in the diaphram on the account pump.
Advanced
Joined: Sep 2016
Posts: 67
Likes: 21
From: SoCal
If the CV was not bought already rebuilt, buy a rebuild kit (gaskets, accel pump diaphram...) and tear it down, clean it up, and rebuild it. It probably needs done if you don't know the history of the carb.
And, I agree on using the sportster needle.
And, I agree on using the sportster needle.
Grand HDF Member
Joined: Nov 2009
Posts: 4,315
Likes: 1,663
From: Tampa
Modern fuels combined with the super hot plugs Harley puts in their engines make plug reading all but impossible. Accurate AFR is acquired by the use of a wideband O2 sensor in the exhaust.
Seasoned HDF Member
Joined: Mar 2010
Posts: 21,093
Likes: 7,622
From: Poolville
Yup.....
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