Thanks for all the suggestions
24 hour soak in 50/50 Acetone ATF no affect Kroil for a few hours before heating with torch.
It broke loose. Now working great.
The metal accelerator pump was tough to get out. But finally got it out with no damage to carb body.
Left the check valve in until I get a rebuild kit hopefully it will be included.
Who makes a good kit for a Zenith 228?
