Motor’s tough if given 1000 mile oil changes. Some examples died after 20,000 miles, others lasted twice that. Motor needs revs to run hard, wallows above 60mph, especially when suspension worn. Front disc brake quick seize in winter. Camchain, rings and valvegear most likely to cause expensive problems. Minor hassles caused by quick seize cables and general corrosion.
1978-86, 99cc OHC single, 10.5hp, 65mph, 90mpg, 260lb