My KTM 85SX is getting very difficult to start and smokes a lot. I do believe the crank seals are shot...the right side sucking air keeping the mixture too lean to start and the clutch side leaking oil which is causing the smoke. So I decided to change them. I didn't get too far as I realize I need one of those 27 x 1 LHT flywheel pullers. That's next on the list. However a new problem (maybe) has arisen so I thought I'd post here to ...er......"get attention"... and hopefully some advice....LOL. It seems I can feel (more like hear, not feel) a bit of play in the flywheel. Mostly in and out, but some up and down as well. I will have to check it with my dial indicator as the play is very small. Doing a Search, I found a spec....0.001" for up and down movement. I'll have to dig out my dial indicator and check it. The question is, how hard are the cases to get apart? I've done small Honda engines before (Z50 and CT70) and it ws quite easy, but I see KTM sells a crankcase splitting tool...is it likely I would need it? Once I get the crank out (presumeably with bearings attached), I'l probably take it somewhere to have the bearings removed and new ones pressed on. I have a small 4 ton press, but not sure about fixtures thin enough to fit under the old bearings. I have about 4 or 5 hours on the bike since I did the top end. There wasn't any rod play and rod side clearances met specs (although I can't remember where i found the specs anymore), so Im hoping the crank assembly can be re-used. Any thoughts from those of you who are familiar with this work...i.e. splitting the cases and changing crank bearings? Thank-you. ps: On the original problem on difficult starting: Cleaned carb, checked reeds, checked rubber intake for rips, new sparkplug, compression about 154 psi with engine cold....still very diffiuclt to start. I got it going yesterday, but the revs wouldn't come down when I turned the choke off, so there's an airleak somewhere.