Went riding yesterday on my '97 SX 250, was a good shakedown run after the top end build. Got stuck in a washout and seen some oil dripping from my stator/ignition case was clearly tranny fluid. The drip was significant and we headed back to base, parked up bike and dripping stopped after 5 min or so (not a massive amount came out), so we decided we would go for a little ride and pull cover later to find source of leak. Rode no further than 50m and she started sputtering and breaking down, eventually stopping and wouldn't start again. I am guessing the oil in the stator housing has fouled everything up and I lost spark. But that is just a guess at this stage. My cousin reckons it is the crank seal leaking the oil, and I am in conflict with him as aren't all the crank bearings lubricated by the fuel mix??? I think I have a knackered clutch disengaging shaft seal as this would be the only thing in stator case that would have direct access to tranny fluid, am I wrong? I have yet to pull the cover and inspect yet, but will be tonight after work, just wanting to sound out my suspicions and hopefully gain some insight before doing so from people with greater experience. Thanks in advance.