Facts About Generators
GeneratorsDirectoryCompareRepairEnginesControllersPartsManufacturersGuides
Search models or part #
Home›Repair guides›Generac›Governor Initial Adjustment

Generac — Governor Initial Adjustment

Adjustments · Mechanical governor

From a Generac service manual covering: GN-190, GN-191, GN-320, GN-360. Check it applies to your exact model before use.

Browse Generac generators & specs →

Before you start

  • DO NOT FORCE the idle or main jet when bottoming.

Procedure

  1. Loosen the GOVERNOR LEVER CLAMP BOLT.
  2. Hold the GOVERNOR LEVER at its full INCREASE RPM position and rotate the GOVERNOR ARM clockwise as far as it will go.
  3. Tighten the GOVERNOR LEVER CLAMP BOLT.
  4. For adjustable carburetors, turn the IDLE JET in until it just bottoms, then back out about 1-1/2 turns.
  5. For carburetors built prior to 1997 with adjustable main jet, bottom the MAIN JET then back it out about 1-1/2 turns.

Specs & values

  • Idle jet back out about 1-1/2 turns
  • Main jet back out about 1-1/2 turns

Source: Generac service manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.

More Generac repair guides →