Question: Why does my Craftsman mower won’t start?

Other possible causes include: Loose, Dirty or Disconnected Spark Plug in Your Lawn Mower: Check it out, clean off debris, re-connect and tighten. Dirty Air Filter: Clean or replace. Fuel Not Reaching the Engine: Tap the side of the carburetor to help the flow of gas.

What would cause my Craftsman mower won’t start?

The most common issues preventing a mower from starting include a dirty or clogged air filter, water in the fuel, and a faulty spark plug.

How do you fix a Craftsman lawn mower that won’t start?

Common solutions for: Craftsman Lawn mower won’t start

  1. Spark Plug. Inspect the spark plug for signs of wear or damage. …
  2. Carburetor. The carburetor might be clogged. …
  3. Carburetor Repair Kit. The carburetor might be clogged. …
  4. Old or Bad Gasoline. …
  5. Fuel Pump. …
  6. Start Switch. …
  7. Flywheel Key. …
  8. Ignition Coil.
IT IS INTERESTING:  How do you befriend Romana in Harvest Moon?

How do you get a lawn mower started that 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.

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.

What can cause a riding mower not to start?

There are many reasons a riding lawn mower won’t start—everything from stale gas to ignition switch problems. If you constantly have to charge the battery, a bad battery or failed alternator could be causing the problem. … Lawn mower ignition switch problems can prevent the starter from getting current.

How do I know if my lawn mower spark plug is bad?

How to Tell When it Is Time to Change the Spark Plug in a…

  1. Hard Start. The most common problem associated with a bad spark plug in a lawnmower is that the mower is more difficult than normal to start. …
  2. Poor Engine Performance. …
  3. Excessive Fuel Consumption. …
  4. Physical Appearance.

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.

IT IS INTERESTING:  Can I pressure wash my lawn mower?

How do you clean a lawn mower carburetor without removing it?

However, you can not spray the carburetor when the engine is off since it cannot do the cleaning without being propelled. All you need to do is to start the engine and spray directly at the center of the carburetor while it is running. Any deposits clogging in the carburetor will easily be removed.

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.

Why do I have to use starting fluid to start my lawn mower?

If you haven’t used your mower in a while, or the engine is cold, starter fluid can help get your mower started. Starter fluid is also a great tool to help you diagnose the problem when your mower does not start.

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.

Why does my lawnmower start then shut off?

It could be from a dirty carburetor, a malfunctioning spark plug, insufficient flow of gas to the engine or a clogged air filter. But if your lawn mower starts then dies, the causes could also be the same. The most common cause of why a lawn mower starts then dies can be due to a carburetor problem.

IT IS INTERESTING:  Frequent question: What should I look for in a good lawn mower?

Why does my lawn mower keep stopping?

A clogged air filter can cut off the required air supply to the lawnmower’s carburetor and cause the engine to stop repeatedly. Read the lawnmower’s owner’s manual if you’re not sure how to access the air filter, and check whether or not the air filter is blocked by dirt or other debris.

Blog about special equipment