Got this 1978 Hobbit PA2 running after being in barn since 1082/83. Seems to start and run well....using an electric drill to spin motor over. So I tried to start it using the pedals...damn, could hardly get the pedals moving! There seems to be a lot of drag in the system before the motor...in the rear gearbox? Maybe I'm just to weak and light (130pounds, age 77+). Any known solutions and/or repairs I should look into?