David Boxall Posted January 15 Got my bike MOTed (road worthy cert) the other day ever since then it has developed a puff of blue smoke on start up the strange thing is it doesn't do it every time only now and then, some one did mention crank case breather blocked,, mine is routed into the air box i think, and maybe there is a build up of oil in there, i will investigate this later. other than that what else could cause this, i am not loosing any oil or water could it mean the valve seals need doing, other than this the bike is running fine thanks D Share this post Link to post Share on other sites
SteveThe Snakes My Rides (8) Posted January 16 Probably the valve seals. Just make sure it has enough oil and ride it. 1 Share this post Link to post Share on other sites
