D. Verify Proper Primary Air Bleed Jet
D. Verify Proper Primary Air Bleed Jet1. If the carburetor was not previously removed (Section B), cover the carburetor venturis to prevent the air bleed jet from falling into the engine.
2. Remove the primary air bleed jet (Figure 8).
3. Verify the jet size. The proper jet should be stamped "90" (Figure 9).
4. ^ If the proper let size is present, reinstall the primary air bleed let.
^ If the let does not have "90" stamped on it, install the provided primary air bleed let from the service package.
NOTE:
When removing and installing the jet, use a screwdriver that is an exact fit in the slot. Work carefully to prevent any damage.
5. Uncover the carburetor venturis.
6. If the carburetor was removed during Section B:
a. Inspect the carburetor to determine if the concealment plug at the idle mixture adjusting screw (MAS) was previously removed and not reinstalled. If the plug is missing, skip steps b through d. If the plug is present, proceed to step b.
b. Clamp the carburetor in a vise with the idle mixture adjusting screw (MAS) facing up. (Make sure to protect the gasket surface from the vise jaws.)
c. Drill a 5/64 in. (2 mm) pilot hole in the bottom area of the casting surrounding the idle mixture adjusting screw (MAS), then redrill the hole to 1/8 in. (3 mm) (Figure 10).
d. Insert a blunt pin punch into the hole and drive out the plug.
e. Reinstall the carburetor following the Service Manual procedures, using the provided carburetor gasket from the Emissions Service Parts Package. Refill the radiator coolant.