3) Float isn't buoyant enough to overcome the mechanical resistance of the rheostat assembly. These are aftermarket reproductions made who knows where.
I am the King of "something is wrong".
Carl
That sounds very like the problems i've been having Carl,it worked well for about a month,on investigation it looked like the float had become porous,acting like a sponge,I was thinking perhaps it was the amount of methanol in fuel these days breaking the float down.
I haven't had a chance to rectify the problem but have opted to sticking 10 or 20 "fruity Ls" worth of gas/petrol in every time i'm out and about....

Judging by my luck recently,if you're the current King I must be the next in line for the Coronation chair...