Meh it was not as unreliable as it might have come off.
Issues I had with the motor.
- Ate a first gear clutch after about 50 mile (never destroyed another through it's life span)
- factory o-ring that sealed the head started to leak, replaced the cheep rubber one with a viton based o-ring no water in the cylinder since.
- Kit bit the dust at Atwater, one of the clips that hold the piston pin in place broke a leg off. leg got shoved up the cylinder scrapping the thing. The kit came with clipless piston clips but the first one was a bitch to install and the second one went flying into some dark corner of my garage. Any high performance motor I build for my self going forward will use clipless clps.
Motor probably had around 500-600 miles before the cylinder lunched it's self. Over it's life span none of the internal gears lost a tooth and my pucks looked brand new crank and bearings looked great.