Alright , so I got myself a 2012 crf230f. Nice new bike, only owner as well! Seems to be smoking (white smoke and weird smell)occasionally when I ride, can only really notice it when idling. Seems to happy more the longer I ride, and been doing this for awhile. There's no additives in the fuel, the bike is AIR COOLED, so this white smoke can't be coolant. I have brought my bike to the dealer twice now where I purchased it, and the first time they said they found a tiny bit of dirt in my carb jet and that's about it. They said they rode it and couldn't get it to smoke. I do have a new exhaust (FMF powercore 4 ) so my bike doesn't sound like a stupid Honda Civic, and no it's not packaging smoke from the new exhaust cause this has happened for several months. I'm assuming it could be my idle jet, or I need to rejet my carb. The smoke isn't steam either from the cold , as Its about 20 degrees Celsius here in Canada. I'm assuming I should check my spark plug, but what should I look for when I take it out?