2 Stroke Upper End?

[sjrider]

from what i've heard on a 2 stroke the first major work needed is an upper end rebuild due to piston ring/cylinder failer resulting in low compression. also to the best of my knowledge when replacing rings you should always hone the cylinder?????
well here is another viewpoint......http://www.angelfire.com/biz/snwvlly/bikes/dnthone.htm

[superchicken]

that is correct..a bad ring,be it worn or broke will cause low compression...then any damadge to the piston like a broken ring land or a hole burned in the middle due to detonating will do it also...are you having a problem with a specific bike?