Funny that you ask about overheating... the last ride I took it on to try to test the jets I noticed a little bit of coolant on the swingarm coming from the hose on the overflow bottle. I also noticed a faint smell of coolant, I'll go check the coolant in a few minutes. But I ordered a chariot billet impeller today because of what I noticed, I'm 100% positive it's a stock impeller in the water pump but not sure of the condition. Dumb question, but could that cause my issue? I have a stock woodruff key and flywheel, mix 32:1 with yamalube 2R, and full engine is 64.75 bore and pistons, 115psi compression last time I checked, stock stroke aftermarket crank (not sure of brand, bought it with it in it), stock head, Toomey T5, boyseen reeds, pro design intake with boost bottle eliminated, stock carbs, airbox w/o lid and k&n. Thanks for the reply!