Why will my lawn mower only start with starter fluid?

Too much starter fluid fill score your cylinder wall. Obviously your engine is not getting enough fuel to start it. First check that your linkage is actually closing the choke completely. IF it appears so, check that there is actually a choke plate attached to the carb choke shaft.

What is the first thing to check if a lawn mower won’t start?

If you run into problems getting your lawnmower ready for spring, try the following:

  1. Use fresh gas. Old gasoline can cause starting difficulties. …
  2. Check the spark plug. …
  3. Use the choke. …
  4. Prime the mower. …
  5. Check the air filter. …
  6. Check the cables. …
  7. Check for water in the fuel tank.
  8. Clear the starter cord of blockages.

Can you start only starting fluid?

Well, if it starts up with starting fluid, but won’t continue to run, it means that the engine isn’t getting fuel. Could be the fuel pump/s, fuel filter, injectors, bad fuel, bad fuel line, computer although it is doubtful that the computer is the cause, etc.

IT IS INTERESTING:  Quick Answer: What is the rate of Swaraj tractor?

Why is my lawn mower cranking 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.

Can you start a lawn mower with starter fluid?

Use only small-engine starting fluid on a lawnmower, which is available at some hardware stores or any lawn mower repair facility. Standard engine starting fluid is too combustible and will ruin your engine. … Adding starter fluid directly to the engine can help you diagnose why your lawnmower will not start.

Can a dirty air filter cause a lawn mower not to start?

Dirty or Clogged Air Filter



Before the incoming air enters the carburetor, it passes through an air filter to remove dust and dirt. When the filter is doing its job, it may get clogged up with debris removed from the air and not allow a sufficient amount of air into the carburetor and prevent the engine from starting.

Why is my carburetor not getting gas?

No fuel at your carburetor can be caused by many things. It could be a simple issue like a fuel filter plugged so tight that no fuel can pass through. Another logical cause could be the fuel pump. … A hole in the fuel line on the tank side could also cause the fuel pump to suck air instead of fuel from the fuel tank.

What causes an engine to need starting fluid?

As its name implies, starting fluid can help your car start if there’s a problem with the ignition system or the engine is too cold to start due to extremely cold temperatures. This liquid typically comes in a spray can and contains a volatile chemical called “ether.”

IT IS INTERESTING:  Quick Answer: Do I need insurance to drive a tractor on the road?

Where do I put starter fluid?

Starting fluid is sprayed into the engine intake near the air filter, or into the carburetor bore or a spark plug hole of an engine to get added fuel to the combustion cylinder quickly.

Why do I have to spray starter fluid into carburetor?

Inside the carburetor, you’ll find a valve into which you can spray the starter fluid. You must do this the correct way because it can cause damage to the engine, or you could injure yourself. … The process of starting the engine will take you about two minutes.

Why does my lawn mower only run for a few seconds then dies?

If your lawn mower starts, runs briefly, then dies these are the four most common reasons that’s happening: Dirty carburetor / clogged carburetor bowl. Old gasoline that has gone bad. Dirty or defective spark plugs.

Will lawn mower not start if oil is low?

Mowers are usually shipped without oil, and some mower engines are fitted with a low oil level safety switch. This means if the oil is low, the mower won’t start. … When the engine does start, open the choke immediately to create the proper fuel to air mixture to keep the mower running.

Blog about special equipment