Generac Power Systems 940-2 Carburetor Disassembly, Cleaning And Inspection, Section CARBURETOR

Section 3.4

CARBURETOR

CARBURETOR DISASSEMBLY

See Figure 3. The carburetor can be disassembled as follows:

1.Remove the BOWL NUT (Item 3) and the FIBER WASHER (Item 4). Then, remove the FLOAT BOWL (Item 5).

2.Remove the FLOAT PIN (Item 6). Then, remove the FLOAT (Item 7) and the INLET VALVE (Item 8).

3.Remove the IDLE SPEED SCREW (Item 20) with SPRING (Item 19).

4.Rotate the THROTTLE VALVE (Item 10) to its closed position and remove the SCREW (Item 9). Remove the THROTTLE VALVE.

5.Remove the THROTTLE SHAFT (Item 14), along with the THROTTLE SHAFT SPRING (Item 13) and the THROTTLE SHAFT SEAL (Item 12).

6.Remove the CHOKE VALVE SPRING RETAINER (Item 18). Remove the CHOKE VALVE (Item 17). Remove the CHOKE SHAFT (Item 15) and the SHAFT SEAL (Item 16).

CLEANING AND INSPECTION

1.Separate all non-metallic parts.

2.Clean metallic parts in a solvent or a commercial cleaner. Soak the parts no longer than about 30 minutes.

3.Inspect throttle lever and plate. Replace if worn or damaged.

4.The float bowl must be free of dirt and corrosion. Use a new float bowl gasket when assembling the bowl.

5.Check the float for damage. Replace, If damaged. The float setting is fixed and non-adjustable.

6.The carburetor body contains a main jet tube that is pressed in to a fixed depth. Do NOT attempt to remove this tube. Tube movement will adversely affect carburetor metering character- istics.

7.After soaking in solvent, blow out all passages with com- pressed air.

Figure 3. Carburetor Exploded View

3.Bowl Nut

4.Fiber Washer

5.Float Bowl

6.Float Pin

7.Float

8.Inlet Valve

9.Screw

10.Throttle Valve

11.Body

12.Throttle Shaft Seal

13.Throttle Shaft Spring

14.Throttle Shaft

15.Choke Shaft

16.Choke Shaft Seal

17.Choke Valve

18.Choke Valve Spring Retainer

19.Idle Speed Screw Spring

20.Idle Speed Screw

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