Aug 8, 2022 · 6. Add fuel stabilizer to the tank. Fill the tank with fresh fuel and a fuel stabilizer to extend the life of the gas and prevent future buildup. A clogged fuel filter is another possible reason ... Baffled by why my YT3000 21hp ohv (model 331977) won't start without a squirt of starting fluid. Over winter I replaced the head gasket as it was blowing smoke. I reset the valves clearances according to specifications and buttoned it up. Went to start it this past week and it slowly cranks but will not start.65. Aug 18, 2011 / 21 HP Craftsman mower won't start. #6. A fully charged 12 volt battery is 12.7 volts, a dead 12 volt battery is 11.9. so there is very little differance. But generally a 12 volt battery reading 12v is a dead battery …A Briggs & Stratton lawn mower engine won’t start due to a bad spark plug, plugged air filter, wrong choke setting, dirty carburetor, plugged fuel filter, clogged fuel line, bad safety switch, or old gas. Briggs & Stratton riding mowers or push mowers with an electric start may have a weak battery, corroded or loosed cables, or a bad ignition ...Reinstall the bolts that hold the coil to the lawn mower and lightly tighten the bolts. Pull the coil away from the flywheel. Tighten the bolts so that the coil can’t move. Insert feeler gauge between coil and flywheel. (feeler gauge gap is engine/coil specific) Rotate the flywheel so that the magnets meet the coil.The CRAFTSMAN® M270 21-in. 159cc FWD self-propelled mower with V20 battery start features a 159cc automatic choke engine for maximum performance and is also equipped with a V20 push-button start that provides quick and easy starting every time. How to Fix It: Stay Safe: Make sure the mower is off and the spark plug wire is disconnected. Find the Ignition Coil: Look in your mower’s manual to find where it’s …This mower had me going in circles. I finally got it fixed. There are 2 parts.There are several reasons a Craftsman lawnmower may turn over but not start, with the most common ones including the following: Lack of fuel. Dirty air filters. Electrical issues in the ignition system or the starter motor. Dirty spark plug. Low oil. Faulty carburetor. Flooded engine. It’s important to troubleshoot and identify the specific ...For two years from date of purchase, when this Craftsman Lawn Mower is maintained, lubricated,and tuned up according to the operating and maintenance instructionsin the owner's manual, Sears will repair free of charge any defect in malarial or workman-ship. If this Craftsman Lawn Mower is used for commercial or rental puq_oses,this warranty Here are 6 steps to removing an airlock in your lawn mower fuel system. Disconnect the fuel line from the carburetor by removing the spring clip with pliers. Place the loose end of the pipe in a fuel container. Pull the starter cord a …The CRAFTSMAN® M270 21-in. 159cc FWD self-propelled mower with V20 battery start features a 159cc automatic choke engine for maximum performance and is. Find a Store Near Me. Delivery to. ... mulch to help put nutrients back in your soil for a healthier lawn, or use the 1.9 bushel Dust Blocker bag for easy cleanup or composting while reducing ...65. Aug 18, 2011 / 21 HP Craftsman mower won't start. #6. A fully charged 12 volt battery is 12.7 volts, a dead 12 volt battery is 11.9. so there is very little differance. But generally a 12 volt battery reading 12v is a dead battery …The symptoms of bad gas vary: mower won’t start; mower runs rough; runs but only with choke; splutters when cutting on a slope; dies when cutting grass; lawnmower starts and then dies. Remove – Remove the air filter by pressing the two plastic tabs. Tilt your mower over and pour a cap full of gas into the carburetor.Apr 11, 2021 · Spring has arrived and like millions of others, I was faced with a no start condition on my AWD Husqvarna push mower. This mower like 90% of all mowers came ... Jason Politte/Demand Media. Check for any leaks under the Craftsman push mower. Any leaking from the lines indicates a line problem. If there is oil or gas under the motor itself, it likely is a motor problem. Jason Politte/Demand Media. Change the spark plug if the mower has no leaks. Change it with the recommended spark plug in the manual.My lawn mower won't start as a Craftsman. Is the Craftsman m275 159cc v20. This is the 1st time I tried to use it this - Answered by a verified TechnicianAug 30, 2018 · If your lawnmower won't start after it's been running for a while, the problem may be easier to fix than you ... My Lawn Mower Won't Start After It's Warmed Up. There are several reasons a Craftsman lawnmower may turn over but not start, with the most common ones including the following: Lack of fuel. Dirty air filters. Electrical issues in the ignition system or the starter motor. Dirty spark plug. Low oil. Faulty carburetor. Flooded engine. It’s important to troubleshoot and identify the specific ...If you adjusted the valves and it still won't crank over here is one more thing to check that will keep your mower from cranking over.Jul 22, 2023 · If your mower "runs and dies" on a shot of starting fluid, then a carburetor jet cleaning or replacement is all you need. I'll show you how to do that in 10 ... Craftsman CMXGMAM2703841 M215, 159cc 21 in Front-Wheel-Drive Self-Propelled Lawn Mower - Use Manual - Use Guide PDF. ... While stabilizing mower so it doesn’t move, lift the upper handle up as shown in Figure 3. ... Be certain to service engine with gasoline and oil as instructed before starting or running your lawn mower. Checking Battery ...The spark plug ignites the fuel and air mixture in the cylinder to power the engine. 159cc FWD Self-Propelled Mower with V20 Battery Start. Craftsman 159cc Spark Plug 7135572 35572 -. A new spark plug helps the engine start easier ensures proper combustion and performance and helps extend engine life.There are several reasons a Craftsman lawnmower may turn over but not start, with the most common ones including the following: Lack of fuel. Dirty air filters. Electrical issues in the ignition system or the starter motor. Dirty spark plug. Low oil. Faulty carburetor. Flooded engine. It’s important to troubleshoot and identify the specific ...Oct 19, 2022 · The cause is likely to be either the timing is off, or way too lean a mixture. Most mowers are .010" on the air gap but I doubt if your .005" contributes to the problem. Spray a little flammable carb cleaner around the intake manifold and see if it changes the way it runs. H. Sep 16, 2023 · A faulty spark plug is one of the most common reasons for a craftsman m270 not starting. This small but vital component ignites the fuel in the engine, and if it’s not working correctly, your mower won’t start. Check the spark plug for signs of wear or damage, such as a cracked ceramic insulator or a worn electrode. The most common reason for why your riding mower will turn over but not start is likely due to bad gas or a dirty carburetor. You can usually fix the problem by …Cons: Less powerful than gas mowers, not enough run time for larger yards, takes 120 minutes to charge. 4. Best Electric Walk-Behind Self-Propelled Mower — EGO Power+ LM2142SP 21-Inch 56-Volt Lithium-Ion Cordless Electric Dual-Port Walk Behind Self-Propelled Lawn Mower. Amazon. $799 at Amazon $799 at Lowe’s.This TB200 has a very common issue with its carburetor, its an easy fix. These are the new design all plastic carbs briggs and stratton is putting on all new...The M270 21-in. 159cc Fwd Self-Propelled Mower with V20* Battery Start features a 159cc automatic choke engine for maximum performance and is also equipped with a V20* push button start that provides quick and easy starting every time. The Lithium-ion V20* battery can also be used in a variety of other outdoor products as well as power tools on the CRAFTSMAN V20* system. A 3-in-1 deck allows ... 3 Reasons Why Your Lawn Mower Won’t Start After Running Out of Gas. An airlock in the fuel system, a clogged fuel filter, and a clogged carburetor are three common reasons why a lawn mower won’t start after running out of gas. As the engine runs out of gas, air can be pulled into the fuel system, creating an airlock that prevents fresh fuel ...If your lawnmower won't start after it's been running for a while, the problem may be easier to fix than you ... My Lawn Mower Won't Start After It's Warmed Up.The Craftsman M230 lawn mower is a popular and reliable mower designed for residential use. However, even the best lawn mowers can sometimes experience issues and fail to start. This post aims to provide a comprehensive guide to troubleshoot and fix the common reasons why a Craftsman M230 lawn mower won’t start.Enjoy fast, free delivery, exclusive deals, and award-winning movies & TV shows with Prime Try Prime ... Masnln 951-14423 Carburetor Carb for Craftsman Cub Cadet Troy-Bilt 5X65RU 6X65RU 159cc 4-Cycle Engines ... YAMAKATO Huayi Carburetor for Cub Cadet 951-14423 Craftsman Troy Bilt MTD Husky Lawn Mower String …Jun 20, 2023 · Reinstall the bolts that hold the coil to the lawn mower and lightly tighten the bolts. Pull the coil away from the flywheel. Tighten the bolts so that the coil can’t move. Insert feeler gauge between coil and flywheel. (feeler gauge gap is engine/coil specific) Rotate the flywheel so that the magnets meet the coil. * VISUALLY EXPLAINED You come to mow the lawn, and your Lawn mower Won't Start? or if your Lawnmower starts then dies! I talk you through Common Causes & Fi... 4. Faulty Fuel Cap. Fuel caps have a vent to allow air to pass through the cap. If the vent on your push mower’s cap is plugged, your gas tank forms a vacuum that prevents your mower from allowing gas to leave the tank. SOLUTION: Replace your push mower’s gas cap if you are unable to clean the cap and open the vent. 5.* VISUALLY EXPLAINED You come to mow the lawn, and your Lawn mower Won't Start? or if your Lawnmower starts then dies! I talk you through Common Causes & Fi... Step 1: Check the fuel level. The first thing you want to do is check the fuel level in the tank. If it’s empty, then that’s probably why your lawn mower won’t start. Fortunately, this is an easy fix – just add more gas! But make sure you use fresh gasoline, as old gasoline can clog up the engine.Check our Engine emits white/blue smoke while running FAQ for assistance. If the engine in emitting black smoke, this could mean that the air filter is dirty, the fuel could have gone bad, the oil is overfilled ,and/or the carburetor is flooded. Start by checking your air filter, if it looks okay, check oil level and drain to the correct level ... Oct 18, 2023 · 3. Make sure the "dead man's handle" control on the mower is held fully against the mower handle while starting. 4. Turn on choke if a manual choke fitted. Don't turn on the choke if the engine has been running in the last 5 minutes or so. 5. Make sure primer bulb is pressed about 5 times (if fitted). Step 1: Check the fuel level. The first thing you want to do is check the fuel level in the tank. If it’s empty, then that’s probably why your lawn mower won’t start. Fortunately, this is an easy fix – just add more gas! But make sure you use fresh gasoline, as old gasoline can clog up the engine.Inspect the oil level. Inspect the oil level before starting the lawnmower. Use the dipstick attached with the fuel tank cover to check it. If the color of the oil is black, it is better to change it. All the mowers have a drain valve under the fuel tank. Take out the whole oil by placing a bowl under the drain valve. Adjustable Cutting Height, Adjustable Handlebar, Adjustable Speed, Assembly Required, Bagger, Deck cleanout, Foldable handle, Mulching Lawn Mower, Residential, Rust resistant deck: Fuel Tank Capacity (gal.) 0.25 gal: Included: Engine oil: Lawn Mower Type: Self-Propelled Lawn Mower: Maximum Cutting Height (in.) 3.75 in: Minimum Cutting Height ... Inspect the oil level. Inspect the oil level before starting the lawnmower. Use the dipstick attached with the fuel tank cover to check it. If the color of the oil is black, it is better to change it. All the mowers have a drain valve under the fuel tank. Take out the whole oil by placing a bowl under the drain valve. Check our Engine emits white/blue smoke while running FAQ for assistance. If the engine in emitting black smoke, this could mean that the air filter is dirty, the fuel could have gone bad, the oil is overfilled ,and/or the carburetor is flooded. Start by checking your air filter, if it looks okay, check oil level and drain to the correct level ... TB115 Push Lawn Mower. Model#: 11A-A2MR766. Powered by a reliable 159cc Troy-Bilt Autochoke engine that removes the need for manual choke adjustment before starting. Oil changes are eliminated with Check Don’t Change™ capabilities, simply check the oil level before each use and top off as needed. 3-in-1 options to dispose of grass clippings ...This may take three or four tries... Just keep repeating until is stays running (then keep it running for at least 5 minutes!)Starting Fluid: https://amzn.to... Step 2: Clean the Carburetor. Carburetor Problems Cause Mower Engines Not To StartThe carburetor regulates how air and fuel move through the engine to power your equipment. If it is dirty, that can cause poor engine performance or starting problems. >> Follow these steps for cleaning carburetors. >> Follow these steps for carburetor rebuild. Craftsman 2x20v electric mower won’t start. I’ve gotten through 1.5 mows with my brand new craftsman 2v20. Halfway through the second mow I emptied the bag and it wouldn’t start back up. Both batteries are fully charged. When I go to start it up the blade moves slightly but doesn’t completely turn.Folks, if this helped you, please consider supporting my channel. Even the smallest amounts help! On my main page, there is a DONATE TO DANDLINC link on th...Norman Bailey, check these things first:" 1. Brake pedal not depressed (safety Switch) 2. Attachment clutch is engaged. 3. Weak or dead battery. 4. Blown fuse. 5. Corroded battery terminals. 6. Loose or damaged wiring. 7. Faulty ignition switch. 8. Faulty solenoid or starter. 9. Faulty operator... - Craftsman Riding MowerOct 18, 2022. Threads. 1. Messages. 4. Oct 18, 2022 / Craftsman mower runs but wont start? #1. I've got a Craftsman M270 mower that's 1 year old, and …Helpful items to have on hand: Clean air filter (if unit is equipped with one) Fresh fuel. New spark plug. Spark plug wrench or socket tool. - the most common sizes are 5/8", 3/4" and 13/16". Of course there are numerous other reasons why a particular design of engine may not start. Some may have to do with the engine itself, others may have to ...Craftsman LAWNMOWER WONT START (Briggs 190cc Engine) Diagnostic & Repair /This Could be Your ProblemCustomer says the machine ran then ran rough and now wont... A Briggs & Stratton lawn mower engine won’t start due to a bad spark plug, plugged air filter, wrong choke setting, dirty carburetor, plugged fuel filter, clogged fuel line, bad safety switch, or old gas. Briggs & Stratton riding mowers or push mowers with an electric start may have a weak battery, corroded or loosed cables, or a bad ignition ...Brand New Lawn Mower Won’t Start – Solved! By: Author John Cunningham. Published: 2019/06/28 at 3:18 pm. ... This means if the oil is low, the mower won’t start. Check the oil level; the average mower will take from empty .65 us quarts/ .6 lt of 5w30 or 10w30 engine oil. But only fill a little oil at a time, as too much oil is bad also ...Try replacing the spark plug with a new one. #3 Make sure the "dead man's handle" control on the mower is held fully against the mower handle while starting. #4 Turn on choke if there's a manual choke fitted. Don't turn on the choke if the engine has been running in the last 5 minutes. If your Craftsman mower is clicking but won’t start, check for a dead battery. If the battery is okay, then look for issues in the connections to the battery, the solenoid, …craftsman electric start lawn mower won't start 500 ... visit product details page for Spu Recoil Starter Pull Start For Craftsman Lawn Mower 143026708 917372832 917372854 917373840 visit product ... visit product details page for Spu Recoil Starter Pull Start For Troy Bilt TB220 Lawn Mowers 159cc 12AVB22J766 21 Inch visit product details ...Connecting the Battery. If your battery wasn’t already connected when you received your mower, you will need to grab a couple of tools and make the connection yourself. First, make sure the mower is switched off. Then, use either a screwdriver or socket wrench and remove the terminal nut and bolt.Craftsman has a solid reputation and they are popular top-selling lawn mowers. The M215 159cc is a value for money option that is highly effective for medium to large yards. It has 3-in-1 functionally which includes a handy mulching feature. The lawn mower is self-propelled and is easy to use. The 21 inch cutting deck and overall design …Two possible outcomes – (1) Mower attempted to start or started – tells us we have a fueling fault, go ahead and test the choke system. (see below) (2) Mower made no attempt to start – then we’ve likely eliminated a fueling fault, and the fault will probably be a lack of spark.Check out the “Spark test video” here or check out this post, “Mower won’t start …Buck's Small Engine DIY - Here's another easy fix for a lawn mower that won't start. Thanks for watching.Get your new fuel cap 692046 HERE (paid link): https...Apr 12, 2020 · Step by Step!Today we'll be fixing a Craftsman Lawnmower with a Kohler 149cc engine.The mower will start, but then shut off right away...This is most likely ... * VISUALLY EXPLAINED You come to mow the lawn, and your Lawn mower Won't Start? or if your Lawnmower starts then dies! I talk you through Common Causes & Fi...Connecting the Battery. If your battery wasn’t already connected when you received your mower, you will need to grab a couple of tools and make the connection yourself. First, make sure the mower is switched off. Then, use either a screwdriver or socket wrench and remove the terminal nut and bolt.The most common reason for oil on a mower spark plug is too much oil in the engine, but there are other possible causes: Mower turned on its side. Head gasket failure. 2 Cycle gas used. Engine worn out. The complete guide to mower hot start problems. All the most common faults and the fixs, in an easy to follow step by step tutorial. Purchase a can of starting fluid, which costs about $5. Remove the air filter cover and pull out the filter, then spray a 1-second squirt of starting fluid into the filter orifice, which is a direct path to the …Links to products I have in my tool bag.Compression tester. https://amzn.to/2NMgezeSpark PLUG TESTER. https://amzn.to/3jEcZH3Inline Spark Checker. ...Lawn Mower Craftsman C459-36303 Operator's Manual. 21" lawn mower (64 pages) Lawn Mower Craftsman C459.60133 Operator's Manual. 7 speed, shift-on-the-go 42” deck (96 pages) Lawn Mower Craftsman C459.60310 Operator's Manual. 19.5 hp, variation speed42” deck (96 pages) Lawn Mower Craftsman C459-60116 Operator's Manual. Folks, if this helped you, please consider supporting my channel. Even the smallest amounts help! On my main page, there is a DONATE TO DANDLINC link on th...To start a lawnmower successfully, you need to: Check oil level. Check gas level. Gas tap “On” (if fitted) Choke “On” (if fitted) Bail lever “On”. Pull cord sharply. In my experience, many no-starts are caused by a simple issue, something a homeowner can easily take care of. This post should have you covered, but if you need video ...The house was purchased in 2016 and I'm going to guess the lawn mower was purchased in the 2012-2013 range. ... A very common cause for small engine no starts is a sheared flywheel key. Lawn mowers blades tend to hit immoveable objects like roots, rocks and stumps. ... Craftsman lawn mower won't move. 1.The most common reason for oil on a mower spark plug is too much oil in the engine, but there are other possible causes: Mower turned on its side. Head gasket failure. 2 Cycle gas used. Engine worn out. The complete guide to mower hot start problems. All the most common faults and the fixs, in an easy to follow step by step tutorial. The quickest way to deal with it is to jump-start the mower. Before trying a jump-start, check that the battery isn’t leaking. If it is, and it’s a sealed battery, you’ll need a replacement. However, usually, only wet batteries leak. The best thing to do is to check the electrolyte level and add more if required.Links to products I have in my tool bag.Compression tester. https://amzn.to/2NMgezeSpark PLUG TESTER. https://amzn.to/3jEcZH3Inline Spark Checker. ...This is Why Your Electric Mower Won’t Start. 1. Mower Key or Safety Button Is Not Fully Engaged. Most mowers require a safety key or a button to be depressed to turn on the mower. This safety feature is an added step to the starting procedure to ensure the mower doesn’t unintentionally start. In the event this occurs, all you need to do is ...This is Why Your Electric Mower Won’t Start. 1. Mower Key or Safety Button Is Not Fully Engaged. Most mowers require a safety key or a button to be depressed to turn on the mower. This safety feature is an added step to the starting procedure to ensure the mower doesn’t unintentionally start. In the event this occurs, all you need to do is ...Lawnmower Won't Start? Watch This EASY FIX! AUTO- CHOKE PROBLEMSIs your lawnmower getting hard to start? Sometimes just replacing the spark plug won't do the...Oct 5, 2021 · 3. Starter Fluid. However, if your model of craftsman lawn mower doesn’t have any primer bulb on it. There is nothing to be worried about either. There is still a way to get it started. You will need to make sure that you locate the fuel cord on your carburetor and then pull it out from one side. Then, you will need to locate the air filter ... Purchase a can of starting fluid, which costs about $5. Remove the air filter cover and pull out the filter, then spray a 1-second squirt of starting fluid into the filter orifice, which is a direct path to the …
Folks, if this helped you, please consider supporting my channel. Even the smallest amounts help! On my main page, there is a DONATE TO DANDLINC link on th.... 10dollar stocks
A Craftsman solenoid is an electrical switch. Electrical items can fail at any time. Inside the solenoid, you will find a spring and copper plate. A Craftsman starter solenoid can go bad if the spring gets weak or the copper plate starts to corrode. The solenoid can also fail as a result of a weak starter, bad battery, or bad ground.The CRAFTSMAN® M270 21-in. 159cc FWD self-propelled mower with V20 battery start features a 159cc automatic choke engine for maximum performance and is. Find a Store Near Me. Delivery to. ... mulch to help put nutrients back in your soil for a healthier lawn, or use the 1.9 bushel Dust Blocker bag for easy cleanup or composting while reducing ...Jun 19, 2023 · Once you have the spring off, take a socket wrench and remove the shoulder bolt from the air vane. Usually, this is the only bolt that holds the air vane to the lawn mower. Next, take your new air vane and place it onto the lawn mower. You will want to make sure that you position the new air vane correctly on the choke arm. 35. Messages. 9,539. Jun 24, 2019 / Craftsman R1000 lawn tractor won't start consistently. #2. I would check to make sure you have spark when it doesn't start. Could also try putting some fuel into the engine intake and cranking to see if it starts and runs or dies shortly.May 13, 2016 · Easy Step by Step instructions for fixing the Auto Choke on a Sears Craftsman Lawn Mower with a Briggs and Stratton engine. Air Vane Spring 790849 part. Ther... The house was purchased in 2016 and I'm going to guess the lawn mower was purchased in the 2012-2013 range. ... A very common cause for small engine no starts is a sheared flywheel key. Lawn mowers blades tend to hit immoveable objects like roots, rocks and stumps. ... Craftsman lawn mower won't move. 1.A Toro lawn mower won’t start when there is a lack of fuel, air, and spark. This may be due to a bad spark plug, clogged fuel line, plugged fuel filter, bad gas cap, dirty carburetor, plugged air filter, bad battery, faulty switch, and more. Keep reading for additional reasons for your Toro starting problem.9,549. May 11, 2022 / Craftsman t110 crank no start. #5. White powdery residue inside is a sign of water in the fuel. A good carburetor cleaning along cleaning the anti after fire solenoid should resolve the problem. Of …65. Aug 18, 2011 / 21 HP Craftsman mower won't start. #6. A fully charged 12 volt battery is 12.7 volts, a dead 12 volt battery is 11.9. so there is very little differance. But generally a 12 volt battery reading 12v is a dead battery …Check our Engine emits white/blue smoke while running FAQ for assistance. If the engine in emitting black smoke, this could mean that the air filter is dirty, the fuel could have gone bad, the oil is overfilled ,and/or the carburetor is flooded. Start by checking your air filter, if it looks okay, check oil level and drain to the correct level ... Links to products I have in my tool bag.Compression tester. https://amzn.to/2NMgezeSpark PLUG TESTER. https://amzn.to/3jEcZH3Inline Spark Checker. ...Craftsman Lawn Mower 28986. Craftsman Gas Powered Riding Lawn Tractor Operator's Manual. Pages: 116. See Prices. Showing Products 1 - 50 of 474. Garden product manuals and free pdf instructions. Find the user manual you need for your lawn and garden product and more at ManualsOnline.Brand New Lawn Mower Won’t Start – Solved! By: Author John Cunningham. Published: 2019/06/28 at 3:18 pm. ... This means if the oil is low, the mower won’t start. Check the oil level; the average mower will take from empty .65 us quarts/ .6 lt of 5w30 or 10w30 engine oil. But only fill a little oil at a time, as too much oil is bad also ...Craftsman Lawn Mower Parts. Preferred Partners of. ... Starter rope won't retract. 1%. Show All Symptoms: Find CMXGMAM2703841_(12AVB2M5791)(2019) Part by Symptom ... Label-Engine Sbd Craftsman 159cc. $2.99 Part …Messages. 43. Aug 13, 2012 / Craftsman LT3000 won't start. #2. Well its probably a saftey switch, maby for the blade engagment, seat or the ingition is bad. You might be able to jump the seat swich and blade engageds swich. I wouldent be able to tell you for shure without looking at a wireing diagram. R.Lawn Mower Loses Speed. If your mower slows noticeably during use, check the blade. Any buildup of dirt and grass clippings can restrict the blade’s movement, causing the engine to work harder. Shut off the mower, disconnect the spark plug wire, then turn the mower over. Clean dirt and grass from the blade and underside of the mower …Oct 18, 2023 · 3. Make sure the "dead man's handle" control on the mower is held fully against the mower handle while starting. 4. Turn on choke if a manual choke fitted. Don't turn on the choke if the engine has been running in the last 5 minutes or so. 5. Make sure primer bulb is pressed about 5 times (if fitted). The crankshaft in a lawn mower sites vertically. At the bottom there is the blade. At the top there is a flywheel. The flywheel serves two purposes. The first is that it's big and heavy allowing it to store kinetic energy so that the lawn mower can continue to spin through the 3 unpowered strokes..