That GOV doesnt look right mate...sorry, missed it before.
I would say your replacement spring is a bit pointless if its spongey as thats what you are trying to get rid of when shimming it.
Take it out, and put in less shim, although it is bloody tight to get back in, I always hurt my hand doing it!
I would say your replacement spring is a bit pointless if its spongey as thats what you are trying to get rid of when shimming it.
Take it out, and put in less shim, although it is bloody tight to get back in, I always hurt my hand doing it!

Wishes for more power...