Right Muffler Spitting Flames
So rather recently it seems, my right side muffler will pop and spit a 3-4inch flame off with it, Usually it happens under moderate to heavy throttle to let off. I have heard that its because its to lean, I've also heard that it means your running to rich, I have checked all my clamps and bolts and it doesn't seem to be the cause of it. I also took the mufflers off and it still did it then. Any idea on how to fix this? My bike runs perfectly fine, I'm just concerned that I'm running too lean and doing damage to something.
P.S. I am on factory exhaust nothing aftermarket.