good find Speedy
I heard that the engine is called an IE34F and is based off some Komatsu designed engine - don't know how true it is
They are quite a good engine - but I have sliced my finger open on a sharp piece of plastic cowl on one whilst pull starting - so be careful
I actually prefer the ones without the clutch - in certain applications. To do the edges on crooked bricks, 1/4 throttle gives good finish and a bit of margin of error