it has seized; The engine oil level is too low; There isn’t enough fuel in the tank, the wrong type of fuel has been used and/or fuel has been left sitting in the tank for a long time without use; Once the generator kicks on and starts working by itself, the momentum of the engine working on its own at 3,600 RPMs will immediately disengage the compression release and you get perfect seals on your compression phases from there on out. I’ve cover each of these 5 reasons in a bit more detail and what you can do to resolve the issue. The tech said it creates something along the lines of a "electromagnetic gate" the resistance in pulling starting is created from parts of the generator acting like a magnet. This could be a case of the cylinder isn’t lubricated due to sitting for a long time. If it did, then you definitely have hydrolock. Small engine electric start conversion is a great option so you can save yourself time and hassle. That water can also lead to rust which can also seize up your piston but we’ll get to that later. If hydrolock was not your problem, I would then check to see if it’s just the recoil starter cord itself. Hydrolock can also happen because of gas if you have a float needle valve that is not functioning properly in your carburetor and will not stop the flow of gasoline entering the carburetor bowl. After an hour or so, try gently pulling the recoil cord with the spark plug still removed to see if the added lubrication has allowed the piston to free itself. link to How Long Can I Leave the Car Radio on? It’s Running Out of Oil or Gas. The first thing I would check if you find it difficult to pull your recoil starter cord for your generator... Recoil Start Assembly (Pull Cord Itself). It’s best to start with the simplest explanations first and progressively dig into the generator further as needed. We carry more than 4 million parts from over 175 major brands, so chances are, we've got the part you need. I've tried spraying carb cleaner into carb, but same results. If the recoil starter assembly is defective, it may not engage the crankshaft correctly. The carburetor might be clogged. Sometimes the rope can get bound up on itself and jammed up inside. For some reason my new briggs and stratton won't start. Getting the generator running doesn't happen with every pull. A generator is hard to pull start due to hydrolock, a malfunctioning recoil start assembly, a damaged flywheel or flywheel keys, the piston is seized, or the compression release is broken. If the carburetor is clogged, try cleaning it with carburetor cleaner. The generator has about 50 hours on it and it's been well maintained. tecumseh generator won t start, Here are the best things to check if the engine won't start: 1. Why is My Generator Hard to Pull Start? Briggs & Stratton Generator Troubleshooting. I got an old 4500 – Yamaha yf4500 – yf-4500 – I’m trying to get running at work that ran fine all summer. Monte. Working with electricity can be deadly if you are not careful. Question by ToddUmbenhauer: My generator will run if i spray it with starting fluid, but won't run other wise. Enter model number to search for the required part specific to your product, Browse our parts categories to select from a variety of parts for your product. If there is no spark, this indicates that the spark plug is defective and should be replaced. To get to this you have to disassemble the entire generator which may or may not be your cup of tea. Before replacing the ignition coil, ensure that the spark plug is working properly. The generator is low on fuel This sticky fuel can clog up the carburetor and prevent the engine from starting. I enjoy repairing generators and other small engines as a hobby, but this is one that I might kick over to a mechanic and pay for it to be done. Disconnected, dirty or fouled spark plugs are common causes for engines that won’t start. If the porcelain insulator is cracked, an electrode is burned away or damaged, or there is heavy carbon buildup at the electrode, replace the spark plug. Hydrolock can occur if your generator has tipped over or been on a hard angle for too long and oil can seep up past the piston rings and sit on top of the piston. Your piston could also be rusted up due to a lack of oil or having water come in through your exhaust and sit on top of your piston and seep down. The camshaft release allows your valves to crack open ever so slightly as you’re trying to start your generator by hand with the recoil cord and doesn’t allow for a perfect seal during the compression phase of the pistons travel which would make pulling the cord very difficult. Over time, some of the ingredients in the fuel may evaporate, leaving behind a thicker, stickier substance. If you had gasoline on your rag that you dipped in, then you will need to clean out your carburetor as it will keep flooding. Petrol Generator Won’t Start * Check the Spark Plug – Do inspections on the spark plug for any signs of damage or wear. Thanks in advance for any advice. Possible causes for a Honda generator not starting are: An engine fault, e.g. Now that we have crossed off the top 3 easiest reasons, we’re going to proceed to look at your piston to see if it’s seized up for one reason or another. Gas is good, new spark plug that is sparking, but won’t pull start. There are also models that are equipped with an AC switch, which is not related to the start of the engine. when I pull rope, I get a 2-3 coughs or a flame out of carb. If you checked everything, and your Onan generator still won’t start, you could look … This is a common problem with newer generators that are not run on a regular basis. You will also need to change the oil since gasoline has undoubtedly seeped down into your crankcase as it worked itself between the piston and the cylinder. Then use a flashlight to see if you have any liquid inside the combustion chamber. Hydrolock is when you have a liquid sitting on top of the piston inside of the combustion chamber. The piston cannot compress liquid but it can compress gasses, so if you have oil, gasoline, or water sitting on top of your piston then it will be physically impossible for you to pull the recoil starter cord since you cannot overcome the laws of physics. If it’s low then … I numbered them in the order I would use when trying to diagnose why the generator is hard to pull start. If you’re able to now gently pull the cord, make sure your generator is outside and shield your face as you rapidly pull the cord several times to flush out the cylinder. Start doing it yourself with the confidence that comes with 100+ years of experience. If cleaning the carburetor isn’t effective, rebuild or replace the entire carburetor. Hydrolock can also be caused by water being inside of your combustion chamber if you left your generator outdoors and water can enter in through the exhaust if it rains hard enough. 01 - Spark Plug. Over time, some of the ingredients in the fuel may evaporate, leaving behind a thicker, stickier substance. In the event, the generator still fails to start; you need to check the … If the ignition coil is defective, the engine may not start. … I have read bits about flywheel, key, timing etc. To access this you’re going to have to remove the starter recoil assembly (as we did in the previous section) and remove the starter cup and the fan disc. While this is convenient, it also introduces a new way for the generator to fail to start. Inspect the spark plug for signs of wear or damage. To determine if the spark plug is defective, use a spark plug tester. Trying to save money and do it ourselves this time. Already ordered? Generac GP5500 generator very hard to start with pull cord. 10 Common Reasons Your Generator Won’t Start 1. Home Battery Bank is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com. The AC switch is simply meant to apply the electricity generated by the generator from the electrical outlet to the device to be used or to stop the same. If the engine has sat for a good bit the first thing I would do if it’s difficult to pull is remove the spark plug and ease the compression until I was able to get oil to start lubricating the cylinder again. Four Common Reasons Why Your Generator Won’t Start. That’s why a backup generator is so important. Check your fuel lines and filters. If the spark plug is properly gapped, deposit-free, and still … If the porcelain insulator is cracked, an electrode is burned away or damaged, or there is heavy carbon buildup at the electrode, replace the spark plug. Robert lives in central Michigan and enjoys running, woodworking, and fixing up small engines. Check for the oil level. If there is a crack on the porcelain insulator, or the electrode is damaged or burned away, just replace this spark plug. Closer tolerances within the fuel systems to meet today's emission requirements make fuel … Are you going to buy a generator? This site is owned and operated by Robert Van Nuck. Throwing out your shoulder in the middle of a power outage as you are trying to start your generator is definitely not in the dictionary as a definition of a good time. I have an entire step-by-step article and video here to guide you through the process. Posted March 16, 2017 by John Anderson. I've only run it on stabilized gas and started it every 30 days and ran it for at least 30 minutes per the instruction manual. Have a look at the crankcase. A clogged carburetor is most commonly caused by leaving fuel in the generator for a long period of time. If oil was on the end of the cloth rag that you dipped in, then flushing it like you did above should be all you need to do. Unfortunately though, having a generator that is difficult to start by hand happens to the best of us. After any service is performed on a unit, always double check the generator system yourself. A dirty spark plug can cause your generator not to start while you can pull the spark plug and attempt to clean it with a wire brush. It could be that the piston was run without oil for too long and the excessive heat is actually caused the piston to find with the cylinder. Prevention is better than cure Let’s look at the causes really quickly below. Essential air flow that travels into the carburetor into the ignition is a definite … If you still can’t pull, proceed to the next section. If the start switch is difficult to turn or works intermittently, replace it. Let me know which one and ill help. I realize it could be a thousand things, but if anyone could tthrow any ideas out there, we would appreciate it. Fuel can be one of the reasons that the generator won’t start running and you have to check if it is available. When I pull it, it pulls out freely it will pull the cord back in but it isnt catching the flywheel so the saw wont start not sure how to fix this the saw is a stihl 064. Home Battery Bank also participates in advertising through Google AdSense and Ezoic. I'm Robert and this blog is about my journey of learning about battery banks, generators, and power outage preparations. When you pull on your recoil starter, you should feel the resistance of the engine as you try start the generator. Sometimes we forget after we get home and wake up to a dead battery, and sometimes we're lucky... Hi! Hydrolock. Chipper shredders have flails that make clunking noises at low speed. Once this is done you can now strew back in the spark plug, reattach the boot, and your generator should fire up (at least temporarily). Here's How Long Can You Leave Your Car's Headlights On. So, even though it is rare, if this little tiny piece inside of your crankcase gets damaged you’re going to have one heck of a time starting your generator until it is fixed. When I say flush out I mean all of the liquid contents will come shooting out the spark plug hole and will fly 10′ up in the air. The switch should have an open contact in the 'off' position and a closed contact in the 'on' position. If the start switch is broken, you can’t start the generator. You have to start by checking the spark plug and see if it is in good condition. Some generators have start switches instead of forcing you to pull a pull rope to start up the generator. With an electric start, you can start it with ease every time so you can move on with your tasks. If you fill the tank all the way to the top, then gas will leak out as the engine moves around. After checking on fuel, you have to find out if the air intake or filter and the exhaust pipe are in good condition. Consumer: Ok. We've all accidentally left our car's headlights on at one point or another during our driving careers. I've been an avid hobbyist in these fields for over 5 years and I enjoy sharing what I've learned in a way that's geared for beginners and those just getting their foot in the door with small engine repair and prepping. If your oil is very low, fill it accordingly and you can also drop a tablespoon of it into the combustion chamber through the sparkplug hole and let it sit for a little bit. If the ignition coil is defective, replace it. If you can see liquid, carefully use a thin dowel with a piece of a clean rag attached with tape to dip down into the liquid. Remove the pull start cover and verify its the pull start and not the motor. Hello, I have a Generac 3500 (4375 max) with a GN 190 6.5 hp I replaced the carb and spark plug. A clogged carburetor is most commonly caused by leaving fuel in the generator for a long period of time. If you have confirmed that the spark plug is working properly, test the ignition coil with an ignition coil tester. You can check motor by moving flywheel with cover is off. Fuel Filter Issues. The ignition coil sends voltage to the spark plug while the engine is running. Check the Air Filter. The carburetor might be clogged. Oil is just as important as having fuel for running your generator. Yamaha Generator Advice: I convert a lot from gas to be able to run on gas, propane, or natural gas. Beyond the extra effort required by the heavy impeller, the causes of hard rope pull on vacuums and chipper shredders are similar to causes of hard rope pull on other equipment. What you’ll want to do is first remove the rubber boot that snaps onto the spark plug and then remove the spark plug with a spark plug removal tool or deep-well socket and ratchet. Use a long slow pull on the starter rope to start a chipper shredder or lawn vacuum. Most modern generators... 3. This gasoline will flood up to the top of the carburetor and then drain out the throat of the carburetor either through the air filter side or back into the combustion chamber depending on what angle you’re generator is sitting during storage. It may seem obvious, but it’s worth checking whether your generator has gasoline in the... 2. Check the fuel filter and the fuel line. I noticed the pull cord wasn't fully coiling in the machine, ... Have 5550 generator which start easily but stops after a short time. If you can, continue with this section. It seems to be locked up, just won't pull. The generator won’t start. Please consult a certified electrician if there is anything you are uncomfortable with. This is known as catastrophic engine failure. If your Generac won’t start even after trying all the tips above, … When you pull the starter rope, tabs extending from the pulley and cam should grab the hub on the engine, causing the engine to turn. You should also check to make sure the spark plug gap is set correctly. Home Battery Bank is compensated for referring traffic and business to these companies. We've got millions of parts, hundreds of brands, and thousands of step-by-step videos— everything you need to find it, fix it and finish the job right. After the new part was put in, it started right up. Beyond that is the flywheel and right where the flywheel is connected to the shaft in the center you’ll see the flywheel keys. I seem to recall us having this problem before, but paid to have it diagnoised. Thankfully, it’s generally an easy fix if you’ve been taking care of your unit. This is normal. To determine if the start switch is defective, use a multimeter to test it for continuity. Generator won't start, just sputters and backfires. HOW-TO Quickly Start A Generator That Won't Start! Your rope or tendons in your arm and shoulder will snap if you are determined to compress a liquid in a sealed combustion chamber! Just make sure you buy the right one. Join Repair Clinic's VIP email list for 10% off, plus other discounts and tips! The start cord on our 9.9, 4 strok merc kicker will not pull. Finally, if it’s none of the aforementioned reasons were your issue, then you might have a damaged compression release on the camshaft inside of the crankcase. Fuel level: Fill gas tank to just below the fill neck so there is room for the gas to expand. If you checked both the Troy-Bilt mower's fuel and engine and the machine still has a start-up problem, then the pull-rope could be the cause. If the recoil rope is slack, it may not be engaging the flywheel and will need to be replaced. The recoil starter assembly engages the crankshaft to turn over the engine. If hydrolock and a recoil starter assembly is not your issue, then you’re next going to want to looking at your flywheel to see if there’s any damage or if the fly wheel keys are damaged as well. Inspect the spark plug for signs of wear or damage. It's never fun to pull start a generator. Remove the starter assembly and inspect it to determine if it is working properly. For small engines, spark plugs typically need to be replaced every season or after 25 hours of use. Does my engine have a … - YouTube You should see a strong spark between the tester’s terminals when the engine is cranking. Email. It is not a switch for starting the generator. When the power goes out, our quality of life is reduced to 19th century standards or worse. Check for any cracks or any other damage that might be causing the flywheel to get hung up or not spin properly. If you had water on your rag that you dipped into the combustion chamber, then you can proceed with running it after you flushed it like I mentioned earlier AND after you change your oil, since water is probably mixed in with it. These assemblies are not that difficult to fix and I have a video link below where you can see me reassemble a fully disassembled one and it also shows how to start a generator with just a piece of rope if your recoil starter assembly is beyond repair. Shipping all 7 days! Knowing if it’s water, gas, or oil can help you diagnose exactly why you have this problem to begin with. With the spark plug removed and the generator outside, keep your face out of the way of the sparkplug hole and slowly and gently pull on the starter cord. When you release the rope, the tabs should retract and the rope should rewind back on the pulley. This sticky fuel can clog up … link to Here's How Long Can You Leave Your Car's Headlights On, Terms and Conditions for Home Battery Bank, Liquid Oil, Gas, or Water sitting on the Piston, Remove sparkplug, pull cord rapidly to flush chamber, change oil, No oil, rust, or engine failure from overheating (no oil), Check oil, add small amount of oil to combustion chamber through spark plug hole, Compression Release Assembly broken inside the Crankcase. -tried starting the generator with the pull start and with the electric stater -turned on the glow plugs 2-3 and 30 seconds-Fuel is flowing to the engine-No spark ( )-I was told by another contestant that fuel was coming out of the injector-Won't run for any amount of time-It appears to be cranking The part was very expensive by … The first thing I would check if you find it difficult to pull your recoil starter cord for your generator would be to see if you have hydroock. The advice given on this website is for informational purposes only. :confused: Common solutions for: Generator won’t start. The safety switch can be tested with a multimeter to determine if it is defective. This could be due to running the generator without oil or enough oil and the piston is not lubricated and cannot move (at all or easily) within the cylinder. Hold times are long. Your engine is low on oil The low-oil sensor isn’t working properly. Hope this helps some of you. In fact, as soon as the power fails, the modern home often lacks even the most rudimentary conveniences. If that’s the case you’re definitely not going to get things running and you’re probably going to be looking for a new generator as opposed to the money it costs to fix such a thing. I already changed the gas I have good spark at the plug and i cleaned the carb. An improper spark plug gap could lead to engine knocking and poor performance. 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