Quote Originally Posted by harvey_s View Post
I have a friend who has had his regulator rebuilt by John Lane, but the power remains stubbornly low.
He is convinced his hammer spring has become weak, but can't find any sources of new ones and he doesn't want to put a second hand one in in case it has the same issue again as I understand they are not that easy to change?
Would anyone have any pointers to sources for new ones please?
Terry Robb does uprated springs