Scott650sx

Hi i just recently purchased a 1990 650 sx. the ski was not running so i decided to take out the motor and rebuild the top end. everything was going well until i was not able to separate the cylinder from the shortblock. i removed all 8 nuts holding the cylinder on and this thing will not move. Even put it on a engine hoist with some straps trying to pull the pieces apart. Im stumped.... Any thoughts suggestions?.... Am i missing any bolts?.. What should i DO?!/? HELP!

no fear here

soak all the studs with WD40 and I mean drench them. The aluminum corrodes and builds up around the stainless studs. It takes time and patients.

Also try heating the area around the studs with a small propane plumbers torch, and gently tapping with a hammer.

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Scott650sx

Awesome thanks for the advice i will try that tomorrow!

Timmay

i had to use a slide hammer on my 750 just lightly tap up on each side and it will come up, i would not however heat anything up and hit with hammer