I just purchased the V&H Big Radius pipes for my '03 Heritage w/carb. The bike currently has the factory pipes with the basic slipons, and the K&N Air Filter. Will I need to rejet my carb?? If so, any suggestions on the size of the jets that will work best?
Try adjusting the mixture screw first. If you get it more than 3 or 4 turns out and still it has a cough then you probibly need to step up in jet size, you should have a 45 in there now and will need to go to a 48. Hope this helps.