Just got a '78 garelli gulp and was wondering if there are any good repair manuels out there, maybe some electronic ones even? if not i was also wondering what sort of engine oil/ transmission fluid i should use, or if there is trasmission fluid. It is a 2 speed automatic, so what kind of transmission is this exactly? how does it shift? i am pretty sure its just a cintrifugal clutch, but i have no idea how the two speed works. can i just use normal car engine oil or is there better stuff? and if the transmission requires fluids, is it just standard 90w gear oil or what?