Hi All. In process of trying to refurb a Zenith 36IV (idle hands and all that...). Seems ok in there -a bit gunged up but one thing has me stumped. The accelerator pump ball valve seems to be rattling around but I can't figure out how to get to it. I've taken out the piston (little plastic rod) but can't access the ball valve. Anyone know how to get at the little sod! Cheers, Lard