Just bored with standard 500 stroke crank, 580cc.
After realising he'd never cut it as a racer, Georg sent the Harris to the US in exchange for a 1974 750SFC, beginning of another story...
The sister bike, which still exists in its original form, was identical save for the carb sizes, 36mm as opposed to 38mm. This engine made 4 ponies less. Astounding was the fact that the engines required next to no maintenance. During 2 seasons of racing, the valves needed adjusting only once, apart from oil, only tyres and drive chains were needed. Engines were stripped at the end of the first season and just reassembled with new timing chains as a precautionary measure.
piet
After realising he'd never cut it as a racer, Georg sent the Harris to the US in exchange for a 1974 750SFC, beginning of another story...
The sister bike, which still exists in its original form, was identical save for the carb sizes, 36mm as opposed to 38mm. This engine made 4 ponies less. Astounding was the fact that the engines required next to no maintenance. During 2 seasons of racing, the valves needed adjusting only once, apart from oil, only tyres and drive chains were needed. Engines were stripped at the end of the first season and just reassembled with new timing chains as a precautionary measure.
piet