Adjusting Choke Plate
- Check choke plate for free movement by depressing with finger. Ensure choke plate is almost closed completely when ambient temperature is below 77°F (25°C). Make sure the choke plate-to-carburetor bore clearance is set to specifications as shown in the CHOKE PLATE CLEARANCE SPECIFICATIONS
table. See Fig 1
.CHOKE PLATE CLEARANCE SPECIFICATIONS
Temperature: °F (°C) Clearance: In. (mm) 77 (25) .004-.023 (.10-.60) 104 (40) .05-.11 (1.3-2.8) - If clearance is not to specification. Check strangler spring, choke piston and choke linkage operation. Lubricate linkage and choke plate as necessary. DO NOT remove riveted choke lever guide.
- If clearance is still out of specification, remove idle-up actuator from carburetor. Turn fast idle cam counterclockwise and insert a pin into holes on cam and bracket to lock cam in place. With cam locked in this position, bend the choke lever up or down as necessary. See Fig 2 .