The 228 is a 28 with the choke linkage 90deg off from the throttle linkage... so any Zenith 28 Series carb manual will cover the rebuild..

Here's a free factory manual..

http://ebookbrowsee.net/zenith-28-128-rebuild-manual-pdf-d387424874

Good scans.


Last edited by pfarber; 01/10/2014 6:57 PM.