Upgrade from 40 hp to 50 hp

[Ingebregtsen]

Hi !
I have a 40 hp Commercial 1998 (J40RLECR), does anyone know if it is possible to upgrade it to 50 hp just by switching to 50 hp carburetors? Or do I also need to upgrade for example the reed valves as well?
Sincerely
Trond