I ride a 1976 K750B, (also have a Honda Lead scooter and a BMW C1, another scooter, and a project KZ1300 that appears to be a POS engine-wise). I live in Dublin, Ireland. The 750 was running poorly, and all that it took to resolve that was correcting the valve clearances. The difference in starting, idling and general performance is excellent, though the fuel economy is still not up to scratch. I might try and find an exhaust for it. A previous owner fitted a fairly cheap homemade-looking 2:1.
