Hi,
You'll need to remove the keyswitch itself & either take it to a locksmith to have a replacement cut from the barrel
or
replace the entire keyswitch with a compatible replacement unit.!
http://www.scootercatalog.com/ottrshti.html This site has everything to check if scooter is not running regarding fuse problems. If you need further help, reach me via phone at https://www.6ya.com/expert/kelley_9a924afdf232bd4d