V50ii regulator replacement

Has anyone tried to replace the regulator on a V50? It’s mounted on a plate underneath the frame tubes and is almost impossible to access. It looks like a major dismantling job just to undo / do up 2 bolts. Any tips would be gratefully received!

Can’t check it against my V50… but are you sure you talking about regulator? Of what you say, it seems to be rectifier(below).

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