I put together a 1015cc, tightened the studs till the squish was gone. This was without a torque wrench and pretty tight. No problems all summer beating the bike with amazing fervor. Then: oil starting leaking all over, the cylinder seal was hissing etc. I checked and found every nut was loose on the head. Surprised me they never fell off. I tightened them back up and the leaking stopped completely. Havn't checked them in alot of beating on the motor but I tightened the rotor bolt and it wouldn't get tight. Turns out it's stretched like an accordian. Never seen that before, but i seen the hardware store and bought a bolt. Second time putting on the rotor, the damn oil leak in the cover ya know, it snapped. Then i see theres these little numbers on the bolt. I got one that did'nt stretch, or snap and you could feel when it was tight. So the torque wrench is 0 me 115. If you dont over torque the head studs they will not stretch, but will compression stay in? When I torque a head a take a long time. And always torque the middle ahead of the ends. That damn toyota diesel should have been done that way but nnoo i had to listen to the book. Failure! Common sense rules. Brain cells must never die. A misprint is burning as kindling in the back yard. The kawi sets in the shed leaking oil. NEVER!!