Press the lawnmower’s primer button three times firmly, holding it pressed inward for about one second each time before releasing it. A self-propelled mulching mower has a primer bulb, but the other Toro 22-inch models do not have that feature.
Where is the fuel valve on a Toro lawn mower?
The switch or valve is intended to stop gasoline from leaving the fuel tank and going to the mower’s engine. If your mower has a fuel shutoff, it is usually located at the base of the fuel tank where the fuel line connects to the tank.
How many times should you prime a lawn mower?
Operate the mower engine in the fast position. Engines with primer: For most temperature conditions, firmly push the primer bulb three times. In cooler weather, additional priming may be needed.
Why doesn’t my lawn mower have a primer?
When the primer bulb isn’t working, it may be a problem with the bulb itself, with the fuel lines that feed fuel to the bulb or both. … The same goes for fuel lines. When they’ve hardened and cracked, they let in air, which makes it impossible to draw the fuel into the carburetor properly.
Where is the fuel shut off valve?
Your main shutoff valve (often called the street-side shutoff valve) may be in the form of a rectangular nub installed in a vertical pipe coming up from the ground. As with the single-lever valve, when the long side of the nub or handle is parallel to the incoming gas line, it’s open. Gas is flowing.
What does a fuel shut off valve do?
Not only does shutting off the fuel valve prevent the engine from flooding while being transported, it prevents flooding because of contamination in the float valve, and extends the life of the float valve by decreasing pressure on it.
How do you start a lawnmower with a primer?
How to Prime a Lawnmower Carburetor
- Remove the cap from the lawnmower fuel tank. …
- Locate the primer bulb on the side of the lawnmower engine. …
- Press and release the primer bulb three times with your finger to prime the lawnmower carburetor.
- Pull the throttle lever on the lawnmower handle to the “fast” position.
How do you start a lawn mower with primer?
To begin, simply push the primer bulb slowly three times to deliver the proper amount of fuel to the carburetor. Then, pull to start.
Can you over prime your lawn mower?
Most lawnmowers have a priming button that sprays gas into the carburetor, but if you overdo it, you’ll upset the gas/air balance and flood the engine.
Why is my lawn mower not getting gas?
The engine can’t get gas if the fuel filter is plugged or the carburetor inlet needle is stuck. Check the fuel filter (if equipped) by removing the fuel line at the carburetor. … If you still don’t get any gas, the fuel line is kinked or plugged. And check inside the tank for any debris that might clog the outlet.
Should a primer bulb have gas in it?
the primer bulb should be mostly fuel, check the lines they get old and start cracking. replace with tygon. there is a fuel pump in the carb operated by pulses from the crank case, the diaphragm in it can can go bad also.
Why is it so hard to start my lawn mower?
The fuel filter might be clogged. A clogged fuel filter is most commonly caused by leaving old fuel in the lawn mower. … This sticky fuel can clog up the fuel filter and make the engine hard to start. If old fuel was left in the lawn mower, drain the old fuel from the fuel tank and replace the fuel filter.
Where is the choke lever on a lawn mower?
There’s a variety of lawn mowers, but for an internal combustion engine, the choke valve is usually located on the body of the engine or a lever on the handle. Most choke valves are butterfly valves mounted in the manifold up from the carburetor jet.
Why is my lawn mower turning over but not starting?
The most common reason for a riding mower cranking over but not starting is bad gas, but other possible reasons include: Gas Valve Off. No Gas. Choke Fault.