Toro GROUNDSMASTER 345 - Manual (Page 13)

TORO GM 345 Ford VSG-411 Gas Engine
Notes
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11
The final adjustments are made with the engine running. To guard against
possible personal injury, engage the parking brake and keep hands, feet, face
and other parts of the body away from the fan or other moving parts.
Low Idle Adjustment.
1. Start the engine and move the throttle to the slow position.
2. Manually rotate the throttle arm closed until it contacts the stop.
3. Check the idle speed and adjust carburetor idle speed screw, if necessary to attain 1350
±
50 rpm.
•
This prevents the throttle plate from being able to bottom out in the carburetor barrel.
4. Release the throttle arm, loosen the jam nut on the governor low idle speed screw and adjust it to attain
1500
±
100 rpm.
•
This sets the actual engine idle speed.