Cleaning the SUB-EGR Valve

19. Disconnect the Sub-EGR valve linkage by pressing in on the retaining pin and spring and pulling upward on the linkage.



20. While holding up the Sub-EGR valve linkage, remove the rubber boot from the carburetor and gently pull the Sub-EGR valve from the bore in the carburetor.

CAUTION: Do not damage the boot when removing it!



21. Clean the valve with carburetor cleaner. You may want to use a piece of very fine emery cloth or crocus cloth to remove any carbon deposits. Clean the valve by twisting it on the emery cloth.

CAUTION: Do not clean the valve with a wire brush or wheel, as this would scratch the valve. Scratches will allow carbon to build up on the valve quickly.



22. Spray carburetor cleaner into the Sub-EGR valve bore in the carburetor.



23. Install the rubber boot onto the Sub-EGR valve. Reinstall the valve in the carburetor and reconnect the linkage.



24. While lightly operating the idle-up lever, install the rubber boot completely around the groove of the Sub-EGR valve bore. Then make sure the boot has been installed correctly in place by operating the idle-up lever fully.



25. Spray carburetor cleaner into the choke linkage and around the secondary main air jet.



26. Reconnect vacuum hoses, and reinstall the air cleaner assembly.