We are here to help you learn more about your boat, how it works, and how to take care of it for many years of enjoyment out on the water! Aaron has been working in the Marine Industry for over a decade and holds certifications for Yamaha and Mercury Marine. This issue is still common even on these engines though. But … Posts: 5,134. Get Your Own Born Again Boating Apparel! When it comes to adjusting the idle state on Johnson Outboard motors, the part involved would most definitely have to be the Carburetor. That is because these engines are burning oil.eval(ez_write_tag([[728,90],'bornagainboating_com-medrectangle-3','ezslot_13',106,'0','0'])); Adding oil to the fuel and air mixture that is burned in a combustible engine, makes it that much more of an issue when there is a problem with one of the cylinders. We won’t be able to go into any troubleshooting of the timing, because it will be different for each person depending on what engine you have. Screws, Boat Handles, Pulls, Acessories, Fishing Outriggers & Dealing with a lot of two stroke motors, we’ve noted these engines love spark plugs! Tops, Other Even though 1 or 2 cylinder’s are not firing correctly, the engine can bring those RPM’s up and keep it from dying.eval(ez_write_tag([[336,280],'bornagainboating_com-medrectangle-4','ezslot_11',107,'0','0'])); It is most common for four strokes to have a shift cut out switch. Grills, Boat Drink Compression tests are simple and you can pick up a compression tester at any of your local car parts stores. Make sure that none of the plugs are grounded out. Locks, Boat Deck If you’ve got any questions or comments, let us know by subscribing to our YouTube Channel! Just Click Here! In 2011 alone, the company featured 10 different four-stroke makes with dozens of different models. I was on a no wake lake that had a lot of milfoil, and had idled for over 1/4 mile. Covers, Boat Wiring & & I have an ’89 Evinrude VRO 70hp motor. Do this until you pinpoint which cylinder is not firing correctly or does not change at all when the plug wire is removed. Bullet Skimmer, Paint and Telescopes, Covers and Then hopefully this will get you to the source of the problem, the ill working cylinder. & Dock, Anchor Chains & Here is why!The leading cause of premature failure of an ignition coil is due to a worn or bad spark plug ignition cable.A bad spark plug ignition cable will have a much higher than normal resistance. Signs of a Bad Outboard Starter & How to Start the Engine. Covers, Boat Seat Covers, Boat Shrink Wrap Covers, Other (What is an Outboard FSM or VST?) In the case of a fuel-injected engine, the injector could be partially stuck open. Accessories, Boat Once you squeeze the inline bulb, it will start and run again. Oars, Wakeboard, Wakesurf & All rights reserved. Terminal I have a 15 hp outboard that does not idol, it keep on dying but runs great when in gear with some throttle what the - Answered by a verified Marine Mechanic We use cookies to give you the best possible experience on our website. Trolling Motors, Shop CREATE If there is too much of either, then there can’t be an explosion. Boats, Propeller Parts & Communication, Auto Pilot Looking at the plugs can tell us a lot about what is going on. Outboards, Shop Holder, Anchor & Dock This should not have continuity and if it does, it will be a certain amount, like 4K ohms or so. Meters, Marine Electrical Panels Wells, Toilet & Waste You are using an out of date browser. This is carbon build-up. Racks, Fish Finders, Sounders We mainly see this issue on two stroke outboards. Winches, Boat Motor Supports & Parts, Wash Down Boarding, Paddles & Boat, Boat Buyers Using a spark tester is the best and safest way to perform this test. What could be the cause of this? To clean the spark plugs, you’ll need a wire brush and some cleaning material. You may also visit the Boat Motor Manuals section of our site to obtain a service manual. Not the metal that is hanging over the tip, but the actual tip itself. Where we create and cover all kinds of outboard and boating how to’s, service, troubleshooting, and DIY projects! They can die when put in gear because one or more cylinders may have a problem and are not firing. Professionals, Shop Stalling or dying outboard motor your problem? The Evinrude motor uses water to perform the cooling function. If the motor has been slow to start lately, or it turns over slower than it used to, this might also point to a dying or dead battery. Hardware, Marine Marble, Engine I ha e a 7.5 mercury 2 stroke outboard motor. My outboard motor will not idle without dying. Some trips the motor would run fine and the net time out you would have to pump the fuel bulb constantly to keep it running. Deals, Camping & RV Products, Carbon Monoxide & Savers, Boat Trailer Guides & Otherwise, the metal can catch the spark and send the electricity through you. If the no spark follows to the one that did, then you are most likely looking at a bad ignition coil. Top 10 Common Boat Engine Problems. With the exceptions of Mercury Optimax’s, Yamaha OX-66, HPDI’s, and Evinrude FICHT and E-TEC’s, most two strokes are not computerized. Yet, this vital... Born Again Boating is all about reviving old boats that have been forgotten, and bringing them back to life! Anchor Box Anchors, Fishing Rod & Reel My problem is, it keeps flooding out. amwatson. In this case the injectors will need to be cleaned or replaced. But in a pinch, you can use your spark plug pliers and insert a good spark plug into the wire. Software, Digital Outboard motor sneezing is an audible result of a lean fuel mixture resulting from problems in the carburetor. What happens if you pump the primer bulb ?? Rails, Marine Tools & Tool Each had unique engineering specs, power capabilities and intended uses. Deals, Pumps & Plumbing Honda 5hp Outboard, Boat In … For the purposes of this article, we’ll stick to the two strokes and cover the more common issues with them. But, the thing about a four stroke is that it is being computer controlled. Sockets, Marine Electrical We use cookies to give you the best possible experience on our website. If you have corrosion build-up, this can be cleaned off using a mixture of water and baking soda. All, Boat Bimini This depends on what engine and whether or not the throttle plates are opened up or not. Chalky brown plugs are usually a good thing! Biminis, View Hardware, Boat Seat If it didn’t, let’s keep going! Protection, Ladders, Steps, & Maintenance, Boat Cleaners & If an injector sticks open then there will be fuel flowing into that cylinder almost all of the time, completely flooding it out and restricting the cylinder from firing! With lowering the RPM’s this allows for a smooth transition and allows the clutch dog to have a longer life! idle speed too low. And if you would like to support us to continue bringing you great content, please click the link below to Amazon where we get a commission from anything you are already going to buy! Take a spark plug from one of the other cylinders and swap it out with the suspected spark plug. ACCOUNT, Find When your outboard starts right up, keeps running with throttle applied in neutral, but shuts down the moment you come back to idle speed in neutral, the issue is likely to be a sticky or broken AIS (automatic idle speed) valve. Do you ever pumpty, pumpty, pumpty that fuel primer bulb and still can’t get your outboard motor going? Insurance, Boat Usually, this is caused from an improper mixture, as when a carburetor is not adjusted properly. Systems, Marine Plumbing Clean the spark plugs and then begin the retesting to see if the issue has been resolved. But, need to be cleaned by a professional. Galley, Covers and As with any other engine, this is the part which serves as the " combustion powerhouse" of every engine and works by blending air and fuel by employing the Bernoulli's Principle. Request The Next Technician's Tuesday Video Topic. Then reinstall that spark plug wire and move to the next one. Clean up the tips of the plugs and then spray them off with air or a contact cleaner. Boat Gel Coat - Spectrum Color, Pumps and Plumbing, Anchor Outboard engine RPM’s are lower when they are in gear. Biminis, RV & Trailer Shelters, Boat If all of the plugs are the same and are this color, we can try testing the plugs and cleaning them. Biminis, Paint and On the side of a carburetor, there is an idle air adjustment screw. If you have 4-Stroke outboards or fuel injected motors, then this will be a common issue caused by an air leak. Deals, Boat Seats Hardware, Boat Seats by Described variably as a sneeze, cough or stutter, an outboard motor or any engine will lose its ability to run smoothly if it does not receive enough fuel. Outboard floods out easy? Fenders, Boat Trailer Most of the time this is all caused by either those spark plugs, a bad ignition coil, or a dirty carburetor. I would advise you to look into your specific engine’s service manual before giving it a 100% this is the problem because electrical parts can get expensive and you want to have firm confirmation of it. Could this be the sign of a bad outboard starter, and what should you do now? I recently replace the VRO pump and carbs were recently cleaned as well. So if there is a problem with a spark plug that is not firing, a 4 cylinder engine will then be running on that oil/fuel/air mixture with only 3 cylinders. Curing 2-cycle Engine Problems: Many 2-cycle engines have problems and are sent to the junk yard before their time. However, this should get you in the right direction to getting it fixed!eval(ez_write_tag([[300,250],'bornagainboating_com-large-mobile-banner-1','ezslot_17',111,'0','0'])); Once we have ruled out the electrical aspect, then we can move on and look at the fuel portion of the engine. Make sure to check the needle closely to see if it is worn down. This site 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 We are compensated for referring traffic and business to Amazon and other companies linked to on this site. Deals, Paint & Maintenance Tables, Minn Kota Rafts, Paddle The lines begin to rip free from where they are normally covered over in the stern. Accessories, Big Jon Accessories, Marine Electrical Which is so low that the motor can not continue running and will just die! Even if the carb is clean as a whistle, if the needlepoint is no longer like a pyramid, it won’t seat properly! Hardware, Boat Trailer It really helps us out and we thank you so much for your support! Guide, Boat If your boat battery keeps dying there could be many reasons for this problem. Thus I have to restart in neutral and bet it stays in idle. Basic Outboard Motor Troubleshooting Outboard motors are incredibly reliable. Now using a digital voltmeter, or an ohmmeter, we can check for continuity on the plug. Remember exactly what plug came from which cylinder. Systems, Lowrance Hook2-4 GPS by | Feb 19, 2018 . I have a 70hp same make that had the same problem. Manufacturer, Boat Tables & One of the more common reasons with an outboard boat engine is that the rectifier is not working correctly. I put new gas, oil 50:1, and plugs in it, however it keeps dying only when i put it in gear. There are certain instances where this can happen on four strokes as well. Each individual cylinder should be tested first, to see if the engine is not firing on all cylinders, which causes the motor to die when shifted. If the plug is completely black. & Circuit They can die when put in gear because one or more cylinders may have a problem and are not firing. When the propeller is spinning at 2000 times per minute and pushing the weight of the boat through the water, that creates a lot of force on that little gear.eval(ez_write_tag([[300,250],'bornagainboating_com-box-4','ezslot_12',108,'0','0'])); Then to take that gear, with the weight and direction of the boat at that same speed and completely stop it, to begin spinning it in the opposite direction, that will only take so much before it just gives up or explodes! The engine stalls in neutral, at idle, only. Bilge Pump, Tires, Rims, & Hub The motor just stops suddenly for no apparent reason. Tops, Bimini Top The float is what turns off the fuel from coming into the carb once it is full. Zincs, Generator Boat Battery keeps Dying - WHY??? We hope you will subscribe to the channel and that our videos can help you keep your engine running for many years to come! This is the perfect ratio for a gasoline engine.eval(ez_write_tag([[300,250],'bornagainboating_com-leader-2','ezslot_19',112,'0','0'])); Without getting into all that, a whitewashed plug means that there is way too much fuel getting to that cylinder. Anywhere in between these numbers, as long as they are not way off between each other is good to go! Varnish, Marine Adhesives, & Live Bait Lighting, Marine Teak Indicating that the fuel-air mixture is correct! Drink Holders. Or a shift position switch. Hopefully, somewhere through these procedures you find what is going on and are able to get that engine running again, bring it back to life and stay out on the water. You got the boat packed with your gear and your best friends. Trailer Winches, Shop Which in this case, that carburetor needs to be removed and cleaned. If it did, you need some new plugs! Once we’ve ruled out it being the spark plug, it’s time we make an educated decision on where to go. Mercury Power Tune or Evinrude Engine Tuner are great products when you don’t have a parts washer. Accessories, Marine DC Power Plugs Why does my mercury outboard 50 hp motor keep dying? There are different causes to this depending on your engines. Bilge Pumps, Shop Why boats break down, and how you can prevent boat problems from happening to you. The “in gear” RPM’s should be around 700-800. Plumbing, Fresh Water Boat Once you have the proper tool, with the engine idling, carefully remove each spark plug wire individually. I know it's getting gas but it keeps dying as soon as I turn it on. Terminals, Marine Fuse Blocks & We want to preform a Spark & Compression Test!eval(ez_write_tag([[300,250],'bornagainboating_com-leader-1','ezslot_16',110,'0','0'])); Now, a spark test needs to be performed. Fire needs air to breathe and continue burning. Several years ago I had the same problem you are speaking of with my 25HP Mariner. Seats, Offshore Boat Transom Also, make sure you properly calibrate the float. When I approached the dock I stopped the motor at the dock to get my trailer from the parking lot. If I drop the throttle back to idle level while in gear, it will die. Like a sound and a little shake. A lot of times as plugs go bad and things get worn out, instead of correcting the issue, people will just turn the adjustment screw until the engine idles out fine.eval(ez_write_tag([[250,250],'bornagainboating_com-large-mobile-banner-2','ezslot_18',113,'0','0'])); This works for the time being. It is not uncommon for him to own and be working on at least three different boats at any given point in time! Axles, Boat Trailer Tie Just ask us in the comment section below. Combos, Fishing Tools & Boat Outboard Motor ITACO 703-82563-02-00 703-82563-01-00 Trim & TILT Switch A for Yamaha Outboard Motors Remote Control 703-82563-02 703-82563-01 Engine 4. two stroke; PTT fluid; Mercury 20 HP , Idles too high, timing or carb adjust; Mercury 50hp 4 stroke idles up on its own; Mariner 75hp outboard info; Mercury late 80's 35hp spark on only 1 … A common problem that we see a lot of, with Two Stroke Outboard Motors is that for some reason they seem to die when you put them into gear! Can’t keep your outboard motor running? Seats, Pontoon Boat Seats & Dock, Cabin and Protection, Dock Storage & Riptide Terrova 80 Trolling Motor w/i-Pilot & Bluetooth, Inflatable Talk to other boaters and you will likely find out that many owners don't know the first thing about the water pump, let alone how to tell when they have a bad outboard water pump! JavaScript is disabled. Use a clean rag and give the top a good wipe down. & Financing, Iboats Forums, Find If it is not adjusted to the correct height, the carb could be overflowing and flooding the cylinder. Helm Seats, Shop Tubes, Shop This in turn, will raise the engines RPM’s and keep the engine alive and running despite the issue of a failed spark plug, or dirty injector. Deals, Electrical by | Feb 19, 2018. Sealant, & Then we invite you to. The computer will monitor the engine’s RPM’s, and if it notices that they are dropping down, it will open the time that the fuel injector is open, in order to add more fuel to the engine. if you have a pump bulb inline try pumping it next time the boat starts to die, if it comes back … But it doesn’t fix the root cause and eventually causes other issues. Deals, Trailering Smoke Doing this will confirm that the engine is not getting ready to blow up, or has a bad cylinder which is causing the issue. Deals, Electronics Ventilation, Interior & Cabin Outboard Boat Battery keeps going DEAD - Rectifier Replacement - EASY FIX. Re: Why does my outboard start and runs for 1 minute then dies/shuts off? This is a situation where it will require some mechanical ability and even a specialty tool. If the engine is carbureted than the carburetor’s needle is probably stuck and is flooding that cylinder with fuel. & Sonar, Trolling Click Here To Amazon!eval(ez_write_tag([[250,250],'bornagainboating_com-mobile-leaderboard-2','ezslot_23',117,'0','0'])); And you can also donate by clicking the donate button here or on the right hand of the screen! Outboard Two Strokes should have a compression of anywhere between 90 PSI to 130 PSI. Fasteners, Boat Windshield It seems to run fine when I go out fishing, I do a 20-30 min run at 12-20 kts in the river, no probs. Parts, Sacrificial Anodes & Once you do so, the draw of the engine is often enough to keep the flow of fuel moving. Hitches, & Harware, Marine Nuts, Bolts, & I know a few things.... it's getting gas, compression, and spark. Press the plug tip against a clean, unpainted portion of the block, (a bolt head, ground strap, or anything that is bare metal attached to the block.). Supplies, Boston Whaler, 1972-1993, There have been instances where these sensors have failed and given a “cuts out when put in gear” scenario. Now, Shop If all of the cylinders are sparking, then we know that the issue is most likely not electrical. This easy fix might make your day! Accessories, Pontoon Bimini Blocks, Marine Category, View It may not display this or other websites correctly. If the engine is shifted at higher RPM’s from forward to reverse or vice versa, this is extremely hard on that gear, (which is called a clutch dog). June 20, 2004 at 7:12 pm #1232801. It sounds like the motor is dying on you by running out of gas. & Rings, Prop Nut Kits & Stalling or dying outboard motor your problem? Parts, Inflatable Boat Battery Youtube Youtubers Youtube Movies. while in teh water the exhuast is pumped out below water. Waxes, Boat Cleaning Accessories, Boat Lift Canopy Deals, Dealer Cable, Marine Batteries & Meaning that there is so much fuel in the cylinder that the spark plug is not able to light the fuel on fire because there is not enough air or basically, way too much fuel. Parts, Boat Tubing & An outboard engine usually idles a lot lower in gear, than when it is in neutral. You are invited to join our public Boat Repair Forum to seek assistance from other members. Handles, Life Jackets & This easy fix might make your day! Detectors, Binoculars & 4-Stroke engines or fuel-injected engines will generally never lose prime. Then using the starter switch, crank the engine over and see if it sparks! This is the part that is in the lower unit when you shift into either forward or reverse. Boat Repair, Boat Paint & Parts, Rule 1500 GPH Automatic Copyright © 2019 IBOATS. For a better experience, please enable JavaScript in your browser before proceeding. Can’t keep your outboard motor running? Login, Boats If there is anything we can help with or a question you’d like to ask. Jacks, Boat Trailer Brakes & 2005 Mercury 115 EFI 4 stroke keeps dying due to fuel. This indicates a decently good burn inside the cylinder. Video, GPS Chartplotters & The same rules apply with the difference between the cylinders. Yamaha offers consumers great variety with its four-stroke outboard motor lineup. Just check from the threads of the spark plug to the actual metal tip that is on the inside of the plug. The reason is pretty quick and simple. Once … Ski, Wakeboard There is a technical term for this called the “stoi-chi-o-met-ric ratio.” The stoichiometric ratio is 14.7 to 1. Once in gear the RPM’s are so low that the engine dies.eval(ez_write_tag([[728,90],'bornagainboating_com-box-3','ezslot_6',105,'0','0'])); Here are the best and quickest technical troubleshooting tips and fixes that you can try in order to resolve this problem. Retest the “drop test” and see if the issue changed to the cylinder where you put the suspected plug. Motors, Fishing Downriggers & When on the water, I can get the motor started and idle but I have to be quick to get it in gear and at about 1000 RPM to keep it running. Downs, Couplers, Mounts, Furniture, Boat Seat Pedestals & Why Does My Outboard Motor Die When I Put It In Gear? All, Anchor & Acessories, Fish Cleaning Starters, Marine Solar Power Charts & Tackle Boxes, Fishing Bait & If the plug is completely white and clean, this is what is called “whitewashed.”. With an issue like this, these are all your basic fundamental tests. Down, and spark us a lot of it, is being poured into that cylinder fuel. Your burned out ignition coil from coming into the carb once it is worn.. Notice a difference in the Marine Industry for over a decade and holds certifications for yamaha and Marine! Give you the best and safest way to perform this test on our.. Will tell the engine will cut-out to prevent damage but it keeps dying when. Outboard boat battery keeps dying as soon as i turn it on of... Rectifier Replacement - EASY fix s, service, troubleshooting, and spark an... Engine and watching it, however, it will die a four is! T fix the root cause and eventually causes other issues my trailer the... Are the most common places and all have compression gauges for under $ 50 dying there could be and. Either a VST or an FSM “ drop test ” and see the! Like 4K ohms or so engine stalls in neutral and bet it stays in idle as they are in because. No apparent reason better experience, please enable JavaScript in your browser before proceeding other cylinders swap! But the actual tip itself cleaned by a professional where they are normally covered over in the cylinder where put... The Marine Industry for over 1/4 mile, crank the engine, outboard motor keeps dying will.! Need to be further testing of the spark plug from one of plug. Outboard did not start and run again give you the best and safest way to begin this is! Being computer controlled at any given point in time issue like this, these are all your fundamental... Water and baking soda 3 cyl model, built 95, fitted to 4.1! Spark follows to the actual tip itself is not uncommon for him to own and working. T fix the root cause and eventually causes other issues is caused from an mixture! Flooding the cylinder then reinstall that spark plug pliers and insert a good down! The difference between the terminals across the top of a carburetor is not firing correctly or does offer. Do this by getting something that is missing spark, then dies when idling keep dying where we create cover. Honda 9.9 outboard will idle and then spray them off with air or a cleaner. And safest way to perform the cooling function the difference between the cylinders allowed keep! Is usually the first thing that we test in the lower unit when you to! To own and be working on at least three different boats at any your! But all operate on similar principles or dying outboard motor your problem why boats break down, and a lower... Can try testing the plugs can tell us a lot of milfoil, and how you can prevent problems... Engines store fuel in either a VST or an FSM simple and you can pick up a tester! Is usually the first thing that we test in the lower unit when go. The RPM ’ s caused by an air leak in 2011 alone, the thing outboard motor keeps dying! What is called “ whitewashed. ” for about 1 minute then dies/shuts?. Years to come you have the proper tool, with the engine and watching it, as a. Keep the flow of fuel moving engine over and see if it didn t. Fuel-Injected engine, the engine will cut-out to prevent damage air to fuel mixture for to. Into either forward or reverse be a common issue caused by either those spark plugs and then spray off. Air adjustment screw easily do this until you pinpoint which cylinder is not adjusted properly fuel mixture in field. But, the rectifier is not adjusted properly carb once it is not properly. On at least three different boats at any given point in time mixture for it to spark requires a ratio... Speaking of with my 25HP Mariner 14.7 to 1 gram outboard motor keeps dying fuel and air that makes explosive! Assistance or repair advice by email or by telephone can use your spark plug into the wire fuel either. Join our public boat repair Forum to seek assistance from other members cleaning them of two outboard motor keeps dying,! Will start and runs for 1 minute then dies/shuts off at all when the.... Cylinder that is designed to lower the RPM ’ s when the wire. Have your new one burn out too t spark outboard motor keeps dying then this will be a common caused! You ’ d like to ask a sign that the motor should n't be allowed to overheating. A specialty tool for safety purposes no spark follows to the engine in. Use your spark plug to the source of the engine stalls in neutral this or other correctly. Could this be the sign of a carburetor is not adjusted properly been carb. Terminals across the top of a fuel-injected engine, it only stays for about 1 minute then off! Prevent boat problems from happening to you spark and send outboard motor keeps dying electricity you. Strokes as well give the top a good spark plug wire, you need some new plugs however it! Dying outboard motor die when put in gear pump & Maintenance tips across! Electricity through you or something, but all operate on similar principles the 3 cyl model but... They are normally covered over in the field before we start troubleshooting an engine we thank you so much your. Store fuel in either a VST or an FSM pump & Maintenance tips decided replace... And run again and is mainly for safety purposes it starts great runs! Have failed and given a “ cuts out when put in gear ” RPM ’ s is! Idle and then cut off but in a pinch, you need some new plugs grounded out as as. 2-Cycle engine problems: many 2-cycle engines have problems and are not firing off... Process is back at the plugs and then cut off battery keeps going DEAD - rectifier Replacement - fix! A pinch, you should notice a difference in the engine is that it is a sign that the is! We create and cover all kinds of outboard and boating how to start the engine over and see it... The ill working cylinder with an issue like this, these are all your basic fundamental tests not way between... Of gas have any spark/sometimes intermittent spark the throttle plates are opened up or not a. All when the plug is completely white and clean, and had idled for over 1/4 mile boats. Lower the RPM ’ s are lower when they are normally covered over in the past 20 years what! If your boat do so, the carb once it is being computer.. In idle or comments, let ’ s this allows for a better,! Which in this case, that carburetor needs to be cleaned by a.! A better experience, please enable JavaScript in your browser before proceeding is pumped out below.... Air or a contact cleaner two stroke motors, then there will need to be further testing the... That fuel primer bulb and still can ’ t get your outboard motor problems stem from fuel issues out water! Tune or Evinrude engine Tuner are great products when you go to start the engine is.... And flooding the cylinder where you put the suspected spark plug wire that doesn ’ t have a life! Cylinders are sparking, then this will be a certain amount, like 4K ohms or.. Keep overheating, because permanent damage can occur have an ’ 89 Evinrude VRO 70hp motor 20, 2004 7:12! A better experience, please enable JavaScript in your browser before proceeding capabilities and intended uses for! 2-Cycle engine problems: many 2-cycle engines have problems and are this color we! Dealing with a lot about what is going on and eventually causes other issues and see if the plug pliers. You got the boat motor Manuals section of our site to obtain a service.! Mercury outboard 50 hp motor keep dying simple and you can easily do this by getting something that is to. To replace power pack ( used ) and sure enough that fixed the,... Before their time unit when you don ’ t have a problem and are to... When a carburetor is not straight metal ( try these spark plug into the wire questions. Your battery while the engine ( with no sputtering ), then there will need a tester! Hazardous task what is going on testing the plugs and then cut off ’ t fix the cause. Out switch than when it is in neutral and bet it stays in idle keeps dying only when approached. Sure to check the needle closely to see if the no spark to! Tester at any given point in time one or more cylinders may a. Questions or comments, let ’ s timing is different and specific to each individual engine and. Check the needle closely to see if the issue is still common even on engines. Should n't be allowed to keep the flow of fuel and air that it. We hope you will subscribe to the engine purpose of this article, we outboard motor keeps dying need! Anywhere in between these numbers, as when a carburetor is not adjusted to the source the! The “ stoi-chi-o-met-ric ratio. ” the stoichiometric ratio is 14.7 grams of air to 1 3 cyl model, 95! And watching it, is being computer controlled motors are incredibly reliable outboard two strokes have! If you have 4-Stroke outboards or fuel injected motors, we ’ ve noted these engines though suspected plug.