MOPED ARMY

no way dude. needle bearing only. it blowed up.

btw, what the hell are you doing to your circlips to make them look like that?

oh yea my crank is a DMP unstuffed..

those pits in your piston crown on from too advanded timing / high compression

the whole needle bearing exploded, that is chunks of it on the piston.

yep. needle bearings and circlips nneed to be checked regularly. Had a bearing cage crack on me, but somehow the rollers didnt get misplaced, and saving my bottom end and jug from otherworldly catastrophic damage

Would you happen to remember what position you left the open end of the circlip? They will compress/collapse if the open end is at the 3 or 9 o'clock positions .Also , was the circlip groove squeaky clean ?

Too bad they don't make teflon buttons for the wristpins that small . We used those on all our Datsun engines for the very same reason .

I just put together a K-star kit myself (literally last night). On the compression gauge this thing pushed 210 psi and then the gauge actually gave out. I don't want this thing blowing up, what precautions can I take to prevent this from happening to me? Don't crank up the timing?

alright so i got it all back together w/ the new piston(used) and circlips(barley used) roller bearing(used on stocker) and i also threw my stock 2HP head on insted of the 70hi-comp, and it sounds alot more like a moped insted of the real nasty matalic sound... havnt checked compression yet but if feels less wich is going to be better..

same thing happened to me on my frist k star kit.i did a tare down and used the same clips.fail.