Hi guys sins I put a ape one my 95 softail the problems started. My sparkplugs get very black en it shoots like a bank robber. We imidiat thought bout the carb, we switch the carb (the bike we took it from runs perfect) en still the same problem, is it possible that something went wrong with the electrics while changing the handle bar? Could a bad connection inter feer with the combustion?? Thanks.

 

Mogge Peter. Welcome to the forum. I'm sure some will help getting to the bottom of this. Air leak in the manifold will be one of the suggerstions, I'm sure.