Carburetor assembly (continued), Adjustments (continued) – Generac 86640 User Manual
Page 70
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Carburetor Assembly (Continued)
ADJUSTMENTS (CONTINUED):
5. Apply an electrical load to the unit equal to the generator’s
rated maximum continuous wattage/amperage capacity.
6. Slowiy turn the load adjustment toward the ’L" (leaner) until
the engine starts to run rough and frequency meter reading
starts to decrease.
7. Slowly turn the load adjustment back toward "R" (richer)
until engine starts to run rough and frequency meter reading
again starts to decrease.
8. Turn the load adjustment toward the "L" (leaner) until
smooth operation and highest frequency is obtained.
9. Turn off all electrical loads and check frequency reading.
The no-load frequency should be 60.5-63.5 Hertz for 60 Hertz
units; or 49-52 Hertz for 50 Hertz units.
NOTE: If the no-load frequency reading Is Incorrect,
adjustment of the engine governor may be required. See
Part 7, "ENGINE SPEED CONTROL SYSTEM".
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