What Roelof is getting at is just the same with Lipos - a used motor is pretty much a liability i.e. someone buys a motor, and even if they listen to what the seller stated, they will more than likely not get the motor to run or tune, and in the process they adjust it without having even replaced needed parts, or serviced it. And when this happens 98% of the Time on RCtech, they end up in our engine forum, or worse, just posting randomly without going to the correct thread (and not even reading it) to complain about the motor.

9 out of 10 used Engine buyers, are buying because they are expecting New Engine Performance at a cheaper attainable price - kinda like the people that buy used LiPos.

The other 1 out of 10 are buying the motor for parts, i.e. they need a crank, case or head - thats it.

So take it with a grain of salt, we see this type of scenario over and over through the years.

As for Me, my old motors get re- pinched usually a new rod and piston and go into loaner buggies or on road at our local club.