Been running hot for how long. Friend had a little V-Star and he had mufflers that were gutted. His turned blue. He ran that thing like that for years. We rejetted once but,he had gotten to rich of jets so we put it back to stock and he got more restrictive mufflers later on. Point being you bike is lean like everybody else has said. I take it it pops out the mufflers on deceleration? A little is ok, a bunch is not good.
Thanks for all the replies , going to take it and have it dyno-tuned. This is a bike I sold to a friend and the pipes were on it that way . We found out that the clamps for the mufflers weren't tight either. So they leaked also. They are a straight thru design as well, so probably wasn't ever re-mapped fuel wise.
To answer some questions ,
Don't know what brand the pipes are but they are straight thru mufflers, not smooth inside, but not restrictive at all.
I have no info on wether or not the previous owner did any fueling upgrades when he changed mufflers/pipes.
I agree it is running lean and it does pop on decelleration but I have heard worse.
Seems to run ok now that we tightened up clamps but before that it ran a little rougher. Ran it about 50 miles today without any problems.
I think it just needs tuned and fuel added to the tune to make it right.
Bad part is now it needs new or at least different pipes . (Look like shit)