Originally Posted by fishfartus
I have an old Honda EM5000A generator that the starter has been removed from.
I did check and the starter as a whole unit is no longer available from Honda. That specific starter was unique to that model generator, and our catalog does not show it being used in any other models.
However, some of the individual starter parts are (maybe 50% of them). If you happen to run across a used or dead starter, it might be rebuildable.
You could contact some Honda dealers; sometimes they have old-stock parts, but this would be a tough one to locate I think. The Honda Part Number is STARTER MOTOR ASSY. (NOT AVAILABLE) 31200-612-000
Caveat: I work for Honda, but the preceding was my opinion alone.