Then, turn off the fuse or unplug the spark plug wire from its plug. Then try starting. Is there a loose spark plug? Heres What to Do, How To Do Frigidaire Side By Side Ice Maker Reset [Step By Step Guide]. After rinsing out the fuel tank, check the filter screen at the bottom of the gas tank for damage. Dont forget to bring your battery with you. It's usually more effective and cost efficient to replace the carburetor rather than rebuild it. When theyre dirty or faulty, they can cause your mower to be difficult to start or cause it to overheat and stall. Push the brake using your left leg. It has a 140cc Briggs and Stratton engine featuring one-step starting, no priming needed. Change the air filter for better air flow. 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. To protect more expensive components from damage, the flywheel key is designed to shear if the mower blade hits an object like a rock or tree stump hard enough to make the flywheel slip out of alignment with the crankshaft. Luckily, there are a number of troubleshooting steps you can take to get your mower started again and avoid costly repairs by a professional. Make sure it is full and that the gas is fresh. Then remove the fuel line thats ahead of the fuel filter inlet and see if gas runs out freely. If youre experiencing this issue with your Craftsman M110 lawn mower, its important to understand the possible causes and take steps to diagnose and fix the problem. This DIY repair guide and video show how to replace a lawn mower carburetor in 30 minutes or less. Engine RPM's surge up and down. 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. Robert Lanter, (307) 634-8026, bull2017rider@gmail.com Once you know what the problem is, you can troubleshoot each source and attempt to correct the problem. Craftsman mower engines need a few things to run correctly, such as oil, air filters and spark plugs. Learn how to replace this tiny but essential part. Finally, battery issues can prevent the mower from starting. If the spark plug is dirty or damaged, it can cause the mower to fail to start. Your local Craftsman lawn mower dealership or lawn mower repair shop will be able to help you solve your problem. If the tank is empty, add fresh gasoline to the mower. Over time, some of the ingredients in the fuel may evaporate, leaving behind a thicker, stickier substance. Choose a symptom to see related walk-behind mower repairs. The action you just performed triggered the security solution. 1%. You will have to replace the fuel pump if you see cracks or fuel leaking outside of the pump. Its function is to make sure your engine receives the right mixture of gas and air to create a combustion in the engine. Pull the starter rope and see if the tester sparks. The engine won't start or runs rough if the spark plug is bad. A worn-out or damaged spark plug can cause your lawnmower to not run efficiently, which would hinder any lawn maintenance task. To drain the tank, lay a shop rag on the mower deck below the tank to catch spills. The 11-in rear wheels provide improved maneuverability on any terrain, while the dual-lever 6 position height adjustment makes it easy for you to adjust the cutting height while mowing. To troubleshoot this issue, tip the mower onto its side. Find the required part specific to your product. . This is a crucial component of the engine that provides the spark needed to ignite the fuel and keep the engine running. Remove the blower housing if you didn't already remove it to rinse out the fuel tank. -34%. If the vented fuel cap is blocked, the fumes inside the tank dont dissipate normally. You need to find the serial number of your mower, then replace the old cable with a new one. The second stroke is the compression stroke, where the piston moves upward, compressing the mixture of fuel and air. Im just mentioning it just in case you forgot to check. This helps to build up pressure in the carburetor and get the engine ready to start. Won't maintain set cutting height. Your IP: The purpose of this blog post is to provide you with valuable information and guidance on how to troubleshoot and repair your Craftsman M110 lawn mower. Can't turn engine off. Finally, it needs the right amount of compression in the cylinder to drive the piston. Perhaps the plug is defective and not providing the necessary charge to make a spark, or the gap between electrodes is too wide. The fourth and final stroke is the exhaust stroke, where the piston moves upward, expelling the exhaust gases from the engine. Test your battery with a multimeter. The flywheel key is a small metal rectangle that keeps the crankshaft and flywheel aligned when you tighten the flywheel nut. Please include what you were doing when this page came up and the Cloudflare Ray ID found at the bottom of this page. Luckily, they always seem to put the manufacturing date and serial number on the underside of the chassis. The most common of them are problems with starting, smoking, dying, vibrating, and cutting. This CRAFTSMAN M110 21-in push mower is ideal for smaller yards. . Replace the starter rope if it's broken. When the charging system fails to charge the battery, the battery may not be able to start the mower the next time you go to use it. Another common reason for a lawn mower not starting is that the air filter is dirty. If the engine still isn't getting gas, replace the carburetor. Electric Start at the best online prices at eBay! They also use a brake switch that can fail to allow the mower to start if the brake is not engaged. If you see excessive buildup or a crack,replace the spark plug. If the air filter is dirty, it will restrict the airflow to the engine and prevent it from starting. Use a wire brush to scrub the terminals clean. Learn which plants thrive in your Hardiness Zone with our new interactive map! If the flywheel key shears when you hit an object, your lawn mower will stop running and won't start. Your air filter should be cleaned or changed frequently so your engine can continue to pull in clean air. To tell whether its on or off, simply check the position of the engine if its off, there will be a lack of noise and movement, while if it is on, both the engine and blade will produce sounds. 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. The first step in troubleshooting your Craftsman M110 lawn mower is to check the fuel level. This easy-to-follow repair guide and video explain how to replace the lawn mower ignition coil yourself. ", Brand new Craftsman 140cc lawn mower wont start, Brand New Craftsman 140cc Lawn Mower Wont Start, The Ultimate Guide to the John Deere 430: Features, Performance, and Maintenance. Click to reveal A lawn mower is a valuable tool for maintaining your lawn and keeping it healthy. Remove the blower housing and pull the tank off the engine. The carburetor might be clogged. These step-by-step repair guides will help you safely fix whats broken on your walk-behind lawn mower. If the tester shows that theres no spark, follow the steps in our video abouttroubleshooting the ignition system. If the rope doesn't retract after you pull it, it's likely the spring is broken. Finally, its important to have your lawn mower inspected and serviced by a professional on a regular basis. When you hit a hard object with your mower, the flywheel can shear to protect more expensive components. Read the manufacturers instructions carefully and follow them to the letter when you replace your lawn mower filter and reassemble your mower. In this article, weve covered the following troubleshooting steps for resolving the issue of a Craftsman M110 lawn mower that wont start: verifying the fuel level and condition, inspecting the spark plug, cleaning the air filter, and testing the battery. Its best to clean the carburetor entirely youll find an assortment of cleaners and parts at your local hardware store. This will help you avoid personal injury or additional damage to the mower. Check this by looking at the front of the engine to make sure that it is seated securely. To fix this problem, clean or replace the carburetor. Make sure that when youre not using your mower, the gas valve is turned off, or else you might run out of gas while youre mowing. Make sure to gap them according to the manufacturers specifications. Hold the filter up to the light tocheck to see if lightcanbe seen through every area of the filter. Fix:You can use a multimeter to test the ignition switch. Replace the choke thermostat if it's stuck in the open position. If the spark plug looks good, reinstall it and then connect a spark plug tester to check the ignition system. This guide is for older lawn mowers models that have a flathead engine. Your IP: If the ignition coil fails, the engine won't start because the spark plug doesn't fire. To prevent this, you should replace your paper filters every 300 hours of operation, or clean or replace your foam filters when they become dirty. 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. When this happens, the engine will stall and refuse to start. If it doesn't start, that eliminates a fuel problem, leaving spark and compression on our list of suspects. Parts:AutoChoke Carburetor (No Red Primer Bulb on airbox) 799584https://amzn.to/2A5KxdDRegular Primer Carburetor 593261https://amzn.to/2ZzHvJkJust the White Jet assembly in the video. You may need to tune up the engine when it vibrates too much or won't stay running. Q: How can I check the fuel level in my Craftsman M110 lawn mower? Third step, check the ignition system with a spark tester. By properly storing gasoline, keeping the battery charged, and scheduling regular maintenance checks with a professional, you can help to prevent future issues and ensure that your lawn mower is always ready to go when you need it. FREE SHIPPING! Replace the switch if bad. Be sure to check out our other videos, here on the Sears PartsDirectYouTube Channel, and subscribe if you like them. 6 Plug wire off. Many Craftsman push mowers are pull-started using a recoil. The recoil starter has a spring that retracts the starter rope used to pull-start a gas mower. Learn about Sears Technical Institute and the advanced technical content being developed for aspiring appliance techs. Open. The ignition switch could be the problem. Tune up a walk-behind mower when the engine runs rough or won't start. Many times, mowers stopped working in the middle of a customers lawn or right before a big rain storm, or before a big party. The carburetor is an essential component of your Craftsman lawn mower. If your lawn mower won't start, or if it won't stop when you release the control bar, the problem could be the safety switch. We take extensive measures to ensure all our products are made to the very highest standards and meet all relevant regulations. 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. If you can start the engine using starter fluid but the engine won't continue to run, clogged carburetor jets may be the problem. 4%. Learn about the top 10 must-have electric lawn & garden tools for 2023, Learn how to fix your lawn mower when its engine surges, Learn how to safely use starter fluid on a lawn mower. Gas begins to break down and become less effective after about 30 days. Inspect the spark plug and clean or replace it if needed. Using a fuel stabilizer keeps fuel fresh and the carburetor from gumming and varnishing. Most of the time, cleaning your carburetor will do the job and your Craftsman will be up and running again. Check the batterys voltage using a multimeter or a battery tester. It has a 140cc Briggs and Stratton engine featuring one-step starting, no priming needed. Required fields are marked *. Here's a video that shows youhow to replace the carburetor. When your lawn mower won't start because there's no spark, the problem might be the mower ignition coilespecially if the spark plug is fine. Sometimes these mowers break down or start acting "funny," causing the mower act sluggish or not turn on. When you can't start your mower, make sure the tank has fuel and that the fuel is fresh; stale fuel can become watery and won't ignite well. A bad spark plug, bad battery, faulty charging system, bad fuel cap, plugged air filter, incorrect choke setting or faulty ignition coil can also cause a Craftsman mower to not stay running. Having gas in the gas tank seems like the obvious answer, but it is often overlooked. Replace the primer bulb if it's damaged. Follow all safety instructions provided in your equipment operators manual prior to diagnosing, repairing, or operating. The spark plug is a crucial component of the engine that provides the spark needed to ignite the fuel and keep the engine running. If there are large clumps of cut grass between the blade and deck, use a trowel or broom handle to scrape these clippings free. This post may include affiliate links. If your snow blower still doesnt start you should consider taking it in for service. A: To replace the spark plug in your Craftsman M110 lawn mower, youll need to locate the spark plug, remove it using a spark plug wrench, and install a new one. If you got the engine to start by cleaning the main jet, but it runs rough or the idle speed surges, you have two choicesrebuild or replace the lawn mower carburetor. The first stroke is the intake stroke, where the piston moves downward, drawing in a mixture of fuel and air. The gauge should measure between 40 and 60 psi of compression. When your lawn mower runs rough or won't start at all, the carburetor might be clogged or damaged. 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. Itcould be several different items and you will just be guessing at the problem which gets pretty expensive. Or, you could rebuild the carburetor, which takes more effort but costs less. Fix:Remove the old fuel, flush the tank and add fresh fuel. If you have to pull the starter rope to start the engine, replace the recoil starter if it doesn't spin the engine when you pull the rope. This lawn mower repair guide shows how to replace the recoil starter in 30 minutes or less. 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