i have a 2001 zx6r with a full yoshi exhaust, ported and polished heads, k&n filter, stage 3 jet kits. the bike had only 7,200 miles on i when i got it and rode it for about 400 miles in a couple day span. i didn't ride it one day and let it sit in the garage and went to get on it the following day and it had a dead batt. so no big deal i charged it and tried to start it. well it started up but sounded like it was missing and was blowing white smoke like crazy. so i turned it off and changed the plugs in it and the gas then tried it again. same thing but this time it wouldn't run after it got warm it would act like it was drowning it self out and then wouldn't start untill it cooled completlly off. i checked the oil and its fine no milkynes or anything. man im stumped i don't see how it was running freaking awsome and then all the sudden over night it runs like crap. any ideas guys?