Checkball Placement for Stromberg WW and WWC

The WW and WWC carburetors typically use two checkballs.

  1. under the accelerator pump (3/16″ steel) 90-13 available for order here
  2. under the main discharge screw (1/8″ steel) 90-21 available for order here

You can see examples of both in these schematics:

Updated on 04/13/2022

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