Lets start with the carburetor choke plate. Replace the starter rope if it's broken. If it doesn't start, that eliminates a fuel problem, leaving spark and compression on our list of suspects. The battery must be charged at a reading of 12.7 volts or greater. Itcould be several different items and you will just be guessing at the problem which gets pretty expensive. Before working on a malfunctioning mower, you should check for the missing safety bar of a dead mans control. Read my article Why Your Craftsman Dies & How to Fix. Push the brake using your left leg. If your gas has been sitting around a whileeither in the tank or in the candrain the tank and fill it with fresh, clean gas from a clean gas can. Its important to regularly drain old gas, particularly during the winter months, when moisture and dirt can collect in the tank. If there's spark, replace the safety switch. Learn why your walk-behind lawn mower won't start at Sears PartsDirect. Free shipping for many products! Inspect the Spark Plug Next, inspect the spark plug. Connect a spark plug tester to the engine to see if the spark plug is getting electrical current from the ignition coil. Q: How do I replace the spark plug in my Craftsman M110 lawn mower? Its meant to prevent horrific accidents by making sure theres always someone on the mower deck holding onto the device which means theres always someone to stop the engine in case of an emergency. Another indication your riding mower solenoid may be bad is when a wire attached to your solenoid gets hot and begins to smoke or melt. Second step, check the spark plug. ook at the Craftsman mower spark plug to see if its damaged or worn out. Own a lawn mower long enough that you are bound to run into problems. Inspect the spark plug and clean or replace it if needed. If you can start the engine using starter fluid but the engine won't continue to run, clogged carburetor jets may be the problem. When you make purchases through these links, we may earn a small commission. Its function is to make sure your engine receives the right mixture of gas and air to create a combustion in the engine. Youcan find information on other types of air filtershere. If its blocked, youll have a hard time starting your mower. Heres What to Do, How To Do Frigidaire Side By Side Ice Maker Reset [Step By Step Guide]. Remove the air filter cover and pull out the air filter. A common issue is a clogged carburetor from stale gas. Next, inspect the spark plug. If there is no spark from the Craftsman mower spark plug, it has to be replaced. There are several reasons why your Craftsman lawn mower wont start. By following these steps, you can quickly and easily identify the cause of the problem and take the necessary steps to fix it. A lawn mower solenoid is an electromagnetic switch that is like an on-off switch that actuates the starter motor to turn over the engine. You can test the spark plug with a tester to see if its working properly when you crank up the mower, you should observe a strong spark between the testers terminals. Replace the primer bulb if it's damaged. Replace if your cap is broken or you are unable to get your cap to vent. A worn-out or damaged spark plug can cause your lawnmower to not run efficiently, which would hinder any lawn maintenance task. If there is no flow, the shutoff valve may be closed. Sometimes these mowers break down or start acting "funny," causing the mower act sluggish or not turn on. Our spark plug and ignition problems video provides additional troubleshooting tips when the engine isn't getting any spark. If the fuel is stale, old or has been mixed with oil, drain the tank and fill it with fresh gasoline. There are specific instructions for starting different types of Craftsman mowers. The first step in troubleshooting your Craftsman M110 lawn mower is to check the fuel level. Without this safety mechanism, the engine will shut off at the highest position and stall if you let your foot off its pedal. You can purchase lawn and garden batteries at hardware and auto parts stores. Make sure it is full and that the gas is fresh. A worn-out or damaged spark plug can cause your lawnmower to not run efficiently, which would hinder any lawn maintenance task. As an Amazon Associate, we earn from qualifying purchases. The air filter prevents dirt and debris from getting into the engine. Test your battery with a multimeter. Replace the line filter. If the mower still wont start, there are ways to troubleshoot the issue and get back to cutting the lawn. If the engine starts and runs briefly,click here to skipto the section about diagnosing fuel problems. I am so disappointed in Craftsman. Only purchase what you can consume within 30 days. The gas cap is connected to the manual pull cord ignition system on many models of Craftsman push mowers, so if its loose or damaged, it can affect the performance of your mower. Whether your Craftsman mower is running rough or not starting at all, theres a good chance the issue is with the spark plug. The engine won't start or runs rough if the spark plug is bad. See Privacy Policyor Contact Us atcraftsman@sbdinc.comor 701 E. Joppa Road, Towson, Maryland 21286, for more information. Make sure to disconnect the negative cable from the old battery before removing it to prevent any electrical issues. Change it with the recommended spark plug in the manual. Choose a symptom to see related walk-behind mower repairs. Then it needs a spark from the spark plug to ignite that fuel in the cylinder. The most common of them are problems with starting, smoking, dying, vibrating, and cutting. If the choke linkage and return spring looked good, then your choke thermostat is likely stuck. push mower is ideal for smaller yards. To troubleshoot this issue, tip the mower onto its side. I hope that this video helps you out today. Dont forget to bring your battery with you. Cloudflare Ray ID: 7a151ca96bb08c51 11 - Craftsman Lawn Mower Recoil Spring When the starter rope is pulled and let go the recoil spring is supposed to recoil the rope onto a pulley. Third step, check the ignition system with a spark tester. Park the mower on a flat surface without tall grass. A failed safety switch also prevents the engine from starting because the switch prevents the ignition coil from sparking the spark plug. First, remove the air filter base to access the choke linkage and choke thermostat. The Craftsman push mower uses a four-stroke engine, which means that there are four distinct strokes that occur during one complete cycle of engine operation. If the spark plug looks good, reinstall it and then connect a spark plug tester to check the ignition system. Also, look for a crack in the ceramic insulator. Replacement for Troy Bilt Craftsman TB110 TB200 140CC 150CC Lawn Mower Compatible with Briggs & Stratton Engines Pull Start Assembly. It can also be used in situations when you want the engine to idle higher or lower than normal for example, to warm up the engine in colder environments or run at a high idle when youre mowing down thick grass. Then try starting. You can email the site owner to let them know you were blocked. For a clean Craftsman mower, try washing the foam filter in soap and water to loosen grime. They also use a brake switch that can fail to allow the mower to start if the brake is not engaged. The fuel pump will have three ports: an inlet port, an outlet port, and a port that is connected to a line off of the crankcase that pressurizes the pump. This product is currently out of stock. Fix:Refer to yourCraftsman operating manual to ensure you are operating your lawn mower correctly, so you dont set off the safety features that shut off your lawn mower. There are a couple of things you can try if your lawnmower isnt starting. Check the batterys voltage using a multimeter or a battery tester and replace it if needed. For most mowers, the fuel cap is located to the rear of the mower, near the engine. When you hit a hard object with your mower, the flywheel can shear to protect more expensive components. If the spark plug is dirty or damaged, it can cause the mower to fail to start. Starts, runs for a while, then dies. When your fuel tank is lower than the carburetor, you will have to pump fuel to the carburetor using a fuel pump. 8 Reasons Your Mower Deck is Vibrating: Solved! All Rights Reserved. It's usually more effective and cost efficient to replace the carburetor rather than rebuild it. Another common reason for a lawn mower not starting is that the air filter is dirty. Fix:Remove the fuel line. If you see excessive buildup or a crack,replace the spark plug. This repair guide shows how to replace a lawn mower flywheel key. 2%. Whether youre a seasoned DIYer or a beginner, these repairs can be done with a few basic tools and a little bit of know-how. Fix:After you verified your spark plug is in good condition, check the continuity of your ignition coil usinga multimeter. Fix Craftsman M110 push mower won't start Briggs and Stratton 140cc engine part 1 - YouTube 0:00 / 19:26 Fix Craftsman M110 push mower won't start Briggs and Stratton 140cc engine. Craftsman mowers are designed to give you a long life of good performance, but theres one thing that can make them less reliable: a low oil level. Fuel problems are one of the most common causes of lawn mower difficulties. Use a socket wrench to unscrew and detach the spark plug from the engine. Over time, some of the ingredients in the fuel may evaporate, leaving behind a thicker, stickier substance. This is a crucial component of the engine that provides the spark needed to ignite the fuel and keep the engine running. Plan the perfect garden with our interactive tool . You can email the site owner to let them know you were blocked. Sort by Date Votes. The 3-in-1 deck allows you to mulch and help put nutrients back in your soil for a healthier lawn, bag for easy clean up or composting. In this case, the choke plate should close to temporarily restrict airflow through the carburetor so more fuel can enter the cylinder. Starting Process Of A Riding Lawnmower Steps to follow: Step #1: Take your Position Sit on the seat before turning on the lawnmower and make sure you have access to all the necessary pedals and levers by your hand and leg. If the coil isn't sparking, remove the kill wire from the ignition coil and check the engine for spark. Learn how to replace this tiny but essential part. A clogged air filter, bad spark plug or contaminated gas can prevent your walk-behind lawn mower from starting. Ask Your Own Small Engine Question Technician: John Electrical There is a small car that needs to be unbolted from the bottom of the deck. Our fuel, ignition and compression video has more help troubleshooting fuel problems. Check the choke plate by looking through the carburetor air inlet on the air filter base. Release the rope from the mower handle so it's in reach when testing the spark plug. 3%. When the carburetor is clogged, the engine won't start, runs rough or won't stay running. A Craftsman mower uses several safety switches in order to keep you safe when you are operating the lawn mower. The ignition coil sits next to the flywheel and generates electrical current to fire the spark plug when magnets on the flywheel pass the ignition coil. 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