I have a '90 YZ80. I havent ran it a week or two, and im having problems starting it. It won't kick over and when i try to pop start it, it jsut makes this low, bogging sound. It had done this before, when the plug was wet, but i took out the plug and heated it up with a small blowtorch with no results. The previous time i rode it, it got low on gas and when i went over uneven terrian it bogged down and quit, thats when i seen the gas level was low, so i put it up, and now it wont start. Has this happened to anone else? Maybe the plug is fouled, or there may be dirt trapped in the gas line? When i went to check the plug it was blackish in color, but it was before when i burnt the excess oil off it. I run my premix at 32:1. Should i run a leaner mixure?