I did the same thing, I had a Kawasaki 750 three pipe, the last of the screamers it was called.
My daughter was born, I looked at the bike in the garage and sold it the next day to a buddy who wanted the motor for a race sled.
I rode on the back of a Kawasaki 750 back in 1978 when I was in the USN, and that guy took it up to about 100 mph.
It scared the crap out of me. I had never been on the back of a bike that did more than 45 mph...
The guy liked to say that bike would pin his bellybutton to his spine.