I have a 400ex that i change and check the oil regularly and just recently it started blowing white and blueish smoke out of the ehaust after i let off the gas. why is it doing this? how can i make it stop doing it? thanks

 

Ive owned 2 400's and ride with a bunch, they all blow a lil puff of smoke at times, i was nervous at first but later learned that it wont hurt them. If u really wanna stop it i think that lucas makes an oil that will take care of it.

 

........................ its called colder weather, more noticable

 

LOL!