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I rebuilt a 1973 FLH a couple of years ago, axle to axle. All stock with 10 over pistons and S+S carb (also completely rebuilt). Jets are correct for 5000 feet. The ride runs great, but breaks up and coughs at times while going over 60, and sometimes so hesitation on hard acceleration. Idles like a dream. I'm still running points.

Any ideas?
 

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Just Ride
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Electronic ignition and make sure timing is right.
 

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I rebuilt a 1973 FLH a couple of years ago, axle to axle. All stock with 10 over pistons and S+S carb (also completely rebuilt). Jets are correct for 5000 feet. The ride runs great, but breaks up and coughs at times while going over 60, and sometimes so hesitation on hard acceleration. Idles like a dream. I'm still running points.

Any ideas?
Bump the main jet up.
Scott
 
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