I got a 98 blaster and once it warms up it smokes like crazy. It still runs like a top dog i live in the mountains so everything is up or down not much level areas, when i really give it hell on the flat or up hill it smokes bad when i start slowing down the smoke lessins..Last year had my topend rebuilt at the yamaha shop friged my head up they put a smaller piston in and beat the hell out of the head so they had to bore it again and put another piston in, and to this day i dont think its still right i think that some of the problem . Any suggestion why so much smoke??? I guess ride till it blows i have owned it for 12 years and have to say yamahas kickass only left me stranded once and that was a clutch cable broke. Thxs