I have changed three plugs this season, is this normal? I own a 2001 WR426, mostly do trail riding for enjoyment only, torn ACL surgery (June 20th) has slowed me down greatly (became a little wiser, I'm not 19 anymore, 36 now). Went riding today and failed to start the beast after 100 kicks plus, usually never have a problem lighting her up. Decided to pull the plug and take a gander, it was black (not much build up) and I changed it out. One kick later, success! This is the third time this year, what gives, am I doing something wrong, are my settings off? I did the throttle stop mod, the air cover is removed, the muffler plug is removed and the grey wire mod has been performed. Should I have changed anything else on my ride after performing these mods? I noticed that I have trouble starting her with the choke on after a few rides and start her with no choke. Then a few rides later, she won't start with choke on or off. I must be stupid, what am I missing. She runs great now with the new plug but in a few rides I'll only be able to turn her over without the choke out. Then a few rides after that, the plug is fouled again. Sorry for all the questions, I know you guys are the masters, please help me!