Thanks, Joe. I actually wondered about whether the short exhaust stack might be causing some problems (no back pressure), but wasn't sure. Got to pay to get the exhaust done, though, and that'll have to wait until after Christmas. Meanwhile, carb rebuild kit is on the way from Jim Carter for my Zenith. I'll keep you posted.
David B
Last edited by David Bush; 12/17/2008 7:07 PM.