Just to show an independent side of the 2-stroke prob....


Here's a Wren I bought used. This had only around 6 hr's on it (from it's last service)... but the bearings were bad. Needless to say... I was a little PO'ed since it was sold as "Excellent condition".

You can see the "Tar" in the can, and rear bearing... and you can see the "Ash" on the wheel. In this case... the real reason the bearings failed, was because the pre-load tube was stuck. (This engine uses a rear pre-load, so a tube and spring are inside the bearing tube. On the King Tech engines... I assume it's a front preload, and wouldn't suffer as bad)