I just recently picked up a '78 750F in pretty nice shape. Cleaned her all up, cleaned out the carbs, and fired her up. Runs real nice!!! It's not so good for first gear though. It doesn't seem to engage properly, like it's only going halfway in. As soon as you let the clutch out, it jumps right out of gear,and knocks. A lot of times, when you do put it into first, the neutral light flickers, until you stab the shifter to try to engage the gear more firmly. It's acting like a bent shift fork, but I have never seen that happen for first? Is there any common problem within the selector mechanism I should look for?