The center cases of my 87 XR600 have been apart many, many times - 3x a moto season * 10 moto seasons.. Too much HP = find the weaksest link .
Now I find most of the female threads a tad, uh, weak. In the past I've used Helicoil brand inserts with some to fair success.
I've heard rumors that there are better insert solutions available.. Easier to install, better bite, last forever.
Have any of you any experience with complete thread replacement other than Helicoil? (please don't suggest welding the hole then resurfacing / drilling / tapping..)
Tx in Advance..