I moved up from a 650 V Star to a 1600 Road Star. Haven't had the bike long, so since the weather here in the midwest has been either snow, rain, cold or all three, I have only rode the bike twice. I noticed that it pops when shifting threw the first 3 gears, like it is hitting the limiter. It does have BUB exhaust and aftermarket air filter too. Is the limiter adjustable or would I have to buy an aftermarket limiter? Or is there something else I can check? Thanks gang!!