Service manual

MERCARB 2 BARREL CARBURETOR SERVICE MANUAL NUMBER 26
Page 5B-10 90-861329--1 MARCH 1999
Choke Inspection
The choke does not require any periodic maintenance; however, if a choke malfunction is
suspected, the following should be done:
1. With engine turned OFF, remove flame arrestor.
2. Open and close choke several times, and check for binding, loose or disconnected
linkages, or other signs of damage.
3. If choke or linkage binds, sticks, or works sluggishly, clean with carburetor choke
cleaner. Follow directions on can.
IMPORTANT: Choke valve and shaft and lever assembly is not serviceable. If valve
and/or shaft and lever assembly is worn or damaged, air horn assembly must be
replaced.
Adjustments
NOTICE
Refer to “Precautions” in this section, BEFORE proceeding.
Pump Rod
1. Loosen idle speed screw until it no longer contacts idle cam.
72284
b
a
a-Idle Speed Screw
b-Idle Cam
INDEX