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
- Reassemble all parts in the reverse order of disassembly.
- Install new parts from carburetor repair kit.
- Open throttle plate slightly for idle speed.
- Set the idle adjusting needle 3/4 turn open.
- With float bowl cover inverted and float bowl gasket installed, set float level 0.125 inch (3.175mm) from the float bowl gasket.
- Tighten air intake mounting screws. Make sure throttle shaft rotates freely. Tighten the FUEL SOLENOID to 70 inch-pounds.
- 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.