I have a kx80 and the pipe has about 1/4" of carbon buildup on the inside. :think: I'm wondering if anyone knows of a "trick" to clean out the carbon buildup. I used a screw driver to scrap the parts I can get at but, I'm not sure how to get the rest of it. It is the stock pipe and I just want to "fix it up" till I can get my dad to cough up the dough for a FMF pipe. :p