3C was relatively mild triple that was often upgraded to harder Jota. Top end gives trouble first but motor can run from 50 to 100,000 miles. Engine in good condition’s fairly smooth, some heavily used ones go through piston rings rapidly – worth applying a compression tester. Ride’s heavy going, needing muscle and long legs. Pre ’81 Jotas are wild bikes, more engine troubles. Also rare 1200 version with less reliability and more vibes. Most are now owned by dedicated enthusiasts.
1977-81, 981cc DOHC triple, 80/90hp 130/140mph 45/40mpg