ok so i just baught a 1997 tigershark daytona 770.. took it out 2 times and ive done some research.. come to find out its a 640 motor and it has a small oil leak (i think its in the front of the motor).. it seams to run fine but i want to get rid of this motor and put a 770 in it like its supposed to be.. is anyone interested in this motor and does anyone have a used 770 that runs and doesnt have any problems?

thanks in advance everyone