here's a couple pics of the 2 H1's i picked up a couple months ago, the more complete one is a 70 acording to the regitration card, has 11K miles on it, the parts bike is a 73 i have the reg. card for that one as well, the guy that i got them from was told that it ran when parked (but we all know how that goes) it turned out to be the center cyclinder the rings where stuck, it has .060 piston in it, it came with a load of parts, and a spare engine that was partially disasembled, after pulling the cyclinders off i discovered that the Rh side cyclinder had been grooved by the rist pin (i have never seen a piston use very thing flat circlips where kawasaki's known for this? the spare motor that is apart has std bore pistons in it with traditional rounded circlips,luckally i picked up the spare engine for parts because it has 3 good std bore cyclinders, carbs ect...