Runnin too good... then the Grenade went off!

Somehow I knew it, my favorite bike was running way too smooth, the manifold re-mod, a 45deg copper-pipe added for clearance,(still in the prototype stage, no leaks though), some ignition issues, the usual stuff... Cruising down the hill after a short warm-up, stalled out, does that sometimes, figured I'd pop it at the bottom of the hill. That's when the bomb I built went off. I did notice a unusual noise as it shut down, kinda of a squeak(read that "seize"), as I let the clutch out at the bottom of the hill, I didn't realize my brakes were THAT good, Oh!! I didn't have them on!! Yup locked up but didn't detonate, upon dis-assembly, I thinking it's the 6202 main bearings, or maybe the lower rod bearing, not that far yet. Just happen to have a new ZB80, BUT the rear mount is not the same size, not like the PK80. Why do I keep trying to make an inferior product perform reguardless... Maybe it's my mechanical pride.(come on 4-strokers, tell me the answer is out there) Just venting, sorry for the long post.

Mac

And No, It's not the copper turbo pipe!!LOL

Strange enough, It was jetted properly, I clutched it down the hill cause it does a bit of 4 stroking in those situations, besides, getting a max speed of 50, isn't really 50 if I'm zoomin down a hill. On a good note, I am grateful it didn't come apart catastrophically. Kinda aggravating that the new Zoom ZB80 has a small seat tube mount, never easy I'll tell ya
Amazing enough, piston/Cyl and top bearing are in good shape, gotta find some more bits for my hand impact driver before I go any deeper