Vacuum Break Adjustment
- Hold choke valve closed and move throttle lever. Release choke valve and ensure it is fully closed. With choke valve closed, apply vacuum to vacuum break diaphragm until diaphragm shaft moves.
- Measure distance while lightly holding choke valve with hand. See Fig 1 . If clearance is not to specification, adjust by bending pawl at tip of lever. See CARBURETOR ADJUSTMENT SPECIFICATIONS table.