I've got two studs in the top of the cylinder that hold the head on, that are stripped. The studs are fine, the threads pulled out of the cylinder. That's why I I've had so much trouble getting the head gasket sealed up on the motor. Can anyone confirm the size and pitch of the threads? If I'm not mistaken, on the newer bikes they are M8x1.25 I looked at a parts fiche, and the description for the stud says it's 8x35, so I'm guessing the studs are the same as the newer ones. I just orders a pack of helicoils and the tap to put them in. I just hope I got the right ones (M8x1.25). Anything else I should know for I start trying to fix them? Should I use Loctite on them? I've drilled and tapped holes before, but never installed a helicoil. Just how well do these things work? How hard are they to put in?