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Generac — Carburetor Reassembly

Repair & overhaul

From a Generac service manual covering: IM100G, IM80G, NP100G, NP80G. Check it applies to your exact model before use.

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Procedure

  1. Reassemble all parts in the reverse order of disassembly.
  2. Install new parts from carburetor repair kit.
  3. Open throttle plate slightly for idle speed.
  4. Set the idle adjusting needle 3/4 turn open.
  5. With float bowl cover inverted and float bowl gasket installed, set float level 0.125 inch (3.175mm) from the float bowl gasket.
  6. Tighten air intake mounting screws. Make sure throttle shaft rotates freely. Tighten the FUEL SOLENOID to 70 inch-pounds.
  7. Insert short leg of CHOKE SHAFT SPRING into small hole in CHOKE SHAFT. Wind SPRING 1-1/2 turns counterclockwise, anchor on retaining screw boss.

Specs & values

  • Float level 0.125 inch (3.175mm)
  • Fuel solenoid 70 inch-pounds
  • Idle adjusting needle 3/4 turn open

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.

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