I have a 94Fatboy that I bought used about 1yr ago. idle and bottom end performance was rough. I pulled the idle jet and realized that it still had the stock 42 in it. Went to a 45 and cured about 80 of the rough idle and hesitation. I have tried to go to a 48 and that did not help. I think it is something in the ignition system. Looks like the module is stock. Anything else to try before dumping over $100 on a new one? I do not think I have any intake leaks at the filter or the manifold. The coil and plug wires are new ( stock coil and SE wires ) By the way, she runs great from 30 MPH and up. Any suggestions would be great!!

Current set up is:
andrews ev-27 cam
K&N filter
V&H big shots
thunder monster baffles
stock cv carb with 175 main and 45 idle jet

thanks

 

I think the carburetor needs either a good cleaning and possibly rejetted.