Hey guys, ive got a bit of a smoke problem on my 2000 XR400. It started smoking in the summer and progressively got worse, I will probably need to get a top end rebuild done but it i don't to it would be nice. If it is valve seals i can do it myself, but I dont want the stress of putting in new rings as it will be my first time. My bike smokes within 20 seconds of cold starting it, and then continues to smoke constantly even when warmed up, the thing burns through a liter of oil in no time ><. anyways, ive attached a video of it just after startup, let me know what ya think. And what is a fair price to have someone change the rings on it?