Neat but gutless four that can be problematic after 20k – pistons, camchains and primary chain. F2 model lasts better (50–60k). Quick seize disc and rain causes the engine to cut out (look for newish, sealed coils, HT leads and caps; electronic ignition helps). Cushdrive wear ruins chains and gearchange (linkage also wears). Check oil sump bolt as it’s too small so can break or round off.
1975-79, 408cc OHC four, 37hp, 100mph, 60mpg, 375lbs