tylerlough: the choke is only on when I warm up the engine and when it's warm I choke it off all the way. I just recently cleaned my sparkplug because it was fouled with black carbon build up. I'll check my plug 2morrow.
I dont believe I have a muffler with a catalytic converter.. not sure what it is but I dont believe I have it.
fairracing31: yeah, litteraly my muffler blows out a flame when I rev it high and the middle and bottom part of the muffler is red hot coal after a while of running. I REALLY would like to improvise the missing tip.. maybe I could take my muffler to a shop and see if they have the same size for a cheap price and hopefully I could just buy the cap seperately. The muffler on kingsmotorbikes.com is $25 and i'm going to order 2 chain tensioners and MAYBE a new muffler...
spunout:Before I lost power in my engine, I was about to go about 33mph top speed with my muffler cap gone (baffle I think is what its called?). Then after a while I lost my engine power and whenever I full throttle it for 3-5 seconds, the rev sounds like it's about to explode; it sounds like it's not supposed to do that.
Also I'm getting EXTREMELY low mpg.. 50mpg if I cruise at a 17mph.