Three places to get Zenith rebuilding kits that include check valves
carburetor-parts.com Mikes 43.95
carbkitsource.com 64.00
carbkits.com 74.00
Mikes has a how to video you can watch after you click on the rebuilding kit for the 28/228 kit.
I made a tool to install the valves out of a 1/4 inch socket the top one is easy but the bottom one is a little tricky.
Pete
Last edited by Pete52; 01/11/2014 3:06 PM.