I decided to do the top end and while installing the new piston I noticed that the crank was picking up oil from the bottem of the engine case. The crank actually had a film of oil that was running off it as I turned it. I suspect that this is an indacation that the crank seal has failed. It just seems to me that a two stroke shouldn't have a pool of oil in the bottom of the engine. Does the pool of oil warrant inspecting the crank seal? The bike has run "rich" and fouled a number of plugs. My jetting is 38/168 for the PJ/MJ.