Welcome from Fla.

Some here including myself have used throttle locks. I really wanted cruise control but have been happy with my Throttlemeister.

Some have fabricated universal cruise units to work on the F6B. Quite a bit of work but can done.
Lot of reading.
http://hondaf6b.com/showthread.php?3...cruise+control

Also a company that make a complete kit. Not exactly plug and play and it's $$$.
http://www.--------.com/search?q=+Honda+F6B