Specifications

Fuel System And Carburetor

Re-assembly of the carburetor

NOTE: The carburetor used in this manual is a Walbro.

Depending on the application, the engine may

have a different carburetor. All carburetors have a

manufacturer name cast on them. Contact the car-

buretor manufacturer for the proper rebuild proce-

dure.

1. Place the carburetor in a clean area on the work

bench.

2. Inspect the needle valve seat assembly.

3. If the needle valve seat is damaged, replace the car-

buretor. See Figure 5.25.

4. Install the throttle valve assembly.

5. Clean the metering orifice\check valve with carbure-

tor cleaner.

6. Install the needle valve, valve lever and spring as one

assembly.

7. Tighten the hold down screw using a #2 phillips

screwdriver.

8. Set the needle valve lever as per the carburetor man-

ufacturer’s recommendations using a W-tool.

See Figure 5.27.

9. Install the gasket and diaphragm.

10. Install the cover.

Figure 5.25

Needle valve

seat

Figure 5.26

Orifice\check valve

! CAUTION! CAUTION

Do not insert anything into the ori-

fice to clean it. That will damage the

orifice resulting in the carburetor

being unrepairable. See Figure 5.26.

Figure 5.27

Needle valve lever

For Parts Call 606-678-9623 or 606-561-4983