What is a Walbro carb?

What is a Walbro carb?

Walbro is a manufacturer of small-engine carburetors and their product lineup includes two-cycle, four-cycle and diaphragm carburetor models. The Walbro carburetor is commonly used on lawn mowers, chain saws and other equipment powered by small engines.

How do I tell what model my carburetor is?

Look at the upper front of the carburetor on the piece known as the airhorn, or choke tower. This is a rectangular part of the carburetor with rounded edges, open to the top of the part. There will be a small number stamped there.

How do you adjust carb screws?

Turn the high speed or main jet screw clockwise until the engine begins to slow. Then, turn the screw the other way until the engine begins to slow. Turn the screw back to the midpoint. Once adjusted, check engine acceleration by moving the throttle from idle to fast.

How do you tell if you need a carb rebuild?

Four Signs Your Carburetor Is Failing

1. Engine Performance Reduction. As mentioned above, combustion starts and keeps your engine running.
2. Black Exhaust Smoke. You shouldn’t see black smoke coming out of your exhaust pipe even if you drive a diesel.
3. Engine Backfires or Overheats.
4. Starting Difficulty.

Where is the part number on a carburetor?

It’s like a “VIN” for your carburetor and should be hand-stamped on the front of the choke tower to the right of the vent tube on most typical Holley carbs. The list number typically is four to six digits long and may or may not have a suffix number behind it.

What are the different parts of a carburetor?

A simple carburetor is constructed of the following parts:

• Throttle Valve.
• Strainer.
• Venturi.
• Metering system.
• Idling system.
• Float Chamber.
• Mixing Chamber.
• Idle and Transfer port.

What’s the rebuild kit for a Walbro carburetor?

Carburetor Rebuild Repair Kit For Walbro K20-WYL, Complete Kit, Compatible With Up to 25% Ethanol in Fuel. Made to meet or exceed OEM specifications. Complete kit, includes welch plug, screen, needle & inlet lever. Replacement repair kit K20-WYL, Use on Walbro series WYL carburetors WYL-1 thru WYL-180 & WYL-185 thru WYL-208.

Where does metering diaphragm go in a Walbro carburetor?

The metering diaphragm is a Walbro part that is used inside of carburetors that work with small engines. This part goes between the carburetor body and the fuel pump. This diaphragm is used to help regulate the fuel to maintain the proper air/fuel ratio.

Where is the check valve on a Wya carburetor?

The check valve is intended to be used with carburetors for small engines. This item fits into the center of the air purge body. This item is used to allow the purge bulb to force air through the check valve causing fuel be drawn from the tank to the fuel pump and through the carburetor.