time has passed since my first post on this subject, my speedo has been fixed and now reads correctly within +-2mpg I have fitted a home made K&N filter, and free flowing muffler ( although I cant keep the packing into it..another story). my FC is now settled at 55mpg imperial using 91 octane..the scooter is fuel injected, most of the running is up/down the freeway at 60mph with mad bursts to 75..our speed limit is 60