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Discussion Starter · #1 ·
Hello everyone I am new to this group, and just got my bike a few months ago. mits an 2007 Vstar 1100.I am having a issue with my bike back firing at low idle and it falls on its face at higher RPMs.
Bike will fall on its face in nutural as well with RPMs over 4k.

So far we have cleaned the carbs, added new spark plugs, new fuel filter, checked air filter, checked coil packs and they are fine, Fuel is clean and added 104 to it as well. I also checked the spark plug wires for arching and all is well.

Do you guys have any suggestions? Any thoughts of where I should go from this point on?
 

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check, fuel filter, air cleaner, carb sync, also check for any vacuum leaks.
hope this helps.
 
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