Thread: Ultra Street Avenger 670cfm jetting
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Old 07-25-2012, 05:33 AM
brandx brandx is offline
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Your engine looks to be close to what I am running. I have the same carb. What altitude are you at. I am at about 4000'. My carb came with 65 from new. I am at 62. Just picked up an lm-1 and will get the readings but 65 was getting black coating on plugs. Have not done any changes on sec jets. Have you looked at the plugs since changing the jetting?
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