I have a 99 ktm 250exc 2 stroke and I have been getting excessive spooge (oil dripping out of exhaust) for a while, so bad its running all the way down the silencer and drips on the swingarm. i have tried jetting, repacked the silencer and have tried different premix oil ratios and different oil (im running amsoil interceptor 50:1) and nothing has seemed to help. The bike runs great, and had the top end rebuilt recently. The bike seems like it may smoke a little more then usual..but it is my first 2 stroke, so im not sure. Could this be a bad right side crankshaft seal, causing the bike to suck in tranny fluid, causing excess spooge? Do you have to split the cases to do this job, I have heard u don't? Being a 1999 could the crank seal possibly be worn out from being old, or does this mean my crank is bad causing it to wear out, although there is no signs of a bad crank? I would like to know what's going on? Thanks.