With the bunny ears hooked up you could see the misfire out the back of the exhaust. Weak orange or yellow spark. Herein, what will a bad rectifier do? This is why it is important for you to find the service manual for the specific engine you are trying to test the stator on. You will need to test the stator and we’ll cover that in a second. If you’ve got any questions or comments, let us know by subscribing to our YouTube Channel!if(typeof __ez_fad_position != 'undefined'){__ez_fad_position('div-gpt-ad-bornagainboating_com-large-mobile-banner-2-0')}; 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! A large proportion of the problems with the battery CD units are caused by low battery voltage or bad ground connections. On Feb 07. It depends on what style and type of engine you have. Why Won’t My Outboard Boat Engine Turn Over!? If any of the above symptoms are evident, toss it: EVEN IF THE ELECTRICAL VALUES ARE CORRECT, it's toast. Connect the positive lead to the positive diode. And a blockage at the regulator can mess up the stator because it is producing voltage but the voltage has no where to go! The stator is made up of windings that produce alternating current electricity. When the regulator rectifier can no longer moderate voltage levels, your boat battery will begin to overcharge.if(typeof __ez_fad_position != 'undefined'){__ez_fad_position('div-gpt-ad-bornagainboating_com-leader-1-0')}; To confirm this, you simply need to use the voltmeter to diagnose that the battery has too high of a charge while the engine is running and producing voltage. Engine is hard to start especially after sitting from a run. Meaning, that one winding will produce the electricity that is used for one, two, or three different cylinders! You will want to double check the service manual for your engine to ensure the test procedures and wire colors for your engine. A stator is a component on an engine that is attached under the flywheel of the engine. Spark plugs keep getting richer/darker as the day goes on indicating weakening spark. First, if a You got the boat packed with your gear and your best friends. How Many Batteries Should I Have On My Boat? Because of where the voltage regulator is located on the outboard ignition system, it endures a lot of abuse. Having a bad stator is going to take away from that experience! Bad rectifier symptoms outboard Join myCast. Maintenance free batteries are NOT recommended for this application. In general, there are two primary ways that the regulator rectifier can fail. Just Click Here! The power pack supplies voltage to the ignition system's power coils. WARNING!! I think I am losing spark in just the mid to high RPMs. Then you could almost bet that it is bad.if(typeof __ez_fad_position != 'undefined'){__ez_fad_position('div-gpt-ad-bornagainboating_com-banner-1-0')}; Before condemning it though, you want to perform some tests to be exactly sure that the stator has failed. A malfunctioning or dead power pack can cause your Johnson outboard to have problems at start up. There shouldn’t be a reading on your meter. In many cases, these are the basic steps you will need to replace the regulator. Get Your Own Born Again Boating Apparel! It will not even start and run if the stator has failed! This happens as the voltage increases in the battery it heaps up, increasing the resistance which regulates the charge. harsh warm saltwater opposed to cold clean freshwater. Why Won’t My Outboard Boat Engine Turn Over!? Low voltage can result from many things. A stator is also the component that creates the charging power for your boat’s batteries. Be careful not to cut any wires that can be re-used with the new setup. What does that mean for your customer? For the low cost of a new rectifier, it doesn’t make sense to operate the outboard without it.if(typeof __ez_fad_position != 'undefined'){__ez_fad_position('div-gpt-ad-bornagainboating_com-large-mobile-banner-1-0')}; So what do you do when the time comes to install a new regulator rectifier? When I turn the key on, without starting the motor, and then turn it to the off position the tach will go to 0. Back to those 13.5-14.3 VDC readings. And take the positive meter lead and check for a short to ground at each and every wire that is coming out of the stator. As to... Signs of a Bad Outboard Water Pump & Maintenance Tips. Most manufacturers will include a wiring diagram to make the process smoother for you as well! This has happened two times. That is unless there is an issue with the stator or alternator. There are some larger engines that will run with a partially bad stator. Ground connections are important for good voltage, and if there is faulty voltage, the regulator rectifier can run hot.Bad grounding, corroded battery connection and poor or loose battery connections will cause faulty voltage.. Secondly, will a bad rectifier drain battery? Since the stator is what creates the electricity needed for the engine to create a spark and run. Do you love movies? Im wondering if that could make me lose spark and cause the bike to miss. Services Wannabe does not say why he thinks it is bad… no symptoms listed… rectifier does not look toast but those old selenium rectifiers did not work very hard as you surely know. So, how to know if regulator rectifier is bad? Clicking this will make more experts see the question and we will remind you when it gets answered. Doing some on line research I found that these were symptoms of a bad … This time the meter should have a reading, although the number itself is not important. I will then check the rectifier with an ohm meter and find that one of the circuits is burned. Or you see it has melted or burnt windings on it. You may be asking yourself, “Why should I purchase CDI’s Regulated Rectifiers, when a less costly rectifier seems to do the same thing?” Well my friend, the answer is simple. The volt meter read low under any throttle condition and the Tachometer never worked. If the speed or load requirements of the motor change, an AC drive — also referred to as a variable frequency drive (VFD) — can vary the voltage and frequency of power to the motor to control its speed. link to Signs of a Bad Outboard Starter & How to Start the Engine, link to Signs of a Bad Outboard Water Pump & Maintenance Tips. On newer voltage regulators, there is also a rectifier, which can convert the AC current from the power generated to DC output. We create all kinds of how-to and DIY videos. Then connect the negative meter lead to any engine ground that is on the block. As well as running too hot. Join thousands of other users in fan casting your favorite stories. On a triple 2 cylinders are firing but one is weak or does not have spark. In some cases, the regulator can become so hot that it causes a fire, which no boater wants to deal with. Replacement Stator Mercury 9.8 HP Meet the MasterTech! Will use a stator that has different parts to it. When the water-cooled regulator goes bad, it’s often caused by a weak or failing water pump. Probably not. The motor will continue to run fine. You can know you have a bad stator by looking at it. Have you ever stopped and wondered what the regulator rectifier is in charge of? If the air-cooled regulator goes bad, it might be due to a lack of air flow. EPA made me do it! (You can see our recommendations for a meter on our resources page here.). If the stator is covered in salt and corrosion. As with the water-cooled option, it’s essential that everything works smoothly to keep the regulator as cool as possible.if(typeof __ez_fad_position != 'undefined'){__ez_fad_position('div-gpt-ad-bornagainboating_com-box-4-0')}; To determine if you have a bad rectifier, you will need to test it. I tested the regulator/rectifier and I dont think it tested right. Request The Next Technician's Tuesday Video Topic! The engine’s flywheel has magnets attached to the inside of it, that spin around the stator. While there are other smaller outboards that will definitely not run without it. Loose terminals kill stators fast. Despite the low voltage reading the charging system must have been working to some degree, since we were never stranded with a dead battery. Will determine how the regulator rectifier is tested using the diode feature on your meter. Since boats use DC power opposed to AC power that you will find in your home. When the battery causes the problem, you will struggle with poor starting, accessories malfunctioning and fluctuating meter readings. This indicates that the rectifier has failed to convert excess power appropriately. If you need to make modifications, connect the appropriate wires together and solder them to prevent corrosion. The rectifier has 3 main purposes, to change A.C. voltage to D.C. voltage, sends tack signal and charges battery. S/N:1b142608. No, other smaller outboards will not run with a bad stator. But you will need to have a digital voltage adapter to test this to keep the fuses in your meter from blowing. 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. How Outboards Charge The Boats Batteries By Either A Stator or An Alternator. Every electric start outboard has an ignition switch and it will open and shut the starter solenoid. The engine will lose spark on one or all of those cylinders. 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! I would say that the main cause for a stator to go bad, is due to age, heat, and corrosion. They get old, they get hot, they break down, and they just flat out go bad!if(typeof __ez_fad_position != 'undefined'){__ez_fad_position('div-gpt-ad-bornagainboating_com-box-4-0')}; If the windings get corroded by a dirty engine, they can fry themselves. The voltage regulator is strictly used to regulate the voltage of the outboard. Or if the thermostat gets clogged with weeds, dirt, or sand. It means expensive electrical components on their boat … We encourage you to stop by our YouTube channel for more guidance and practical tips!if(typeof __ez_fad_position != 'undefined'){__ez_fad_position('div-gpt-ad-bornagainboating_com-large-mobile-banner-2-0')}; Plus, browse our helpful blog articles for additional information about your boat and the engine.Do Outboards Have Alternators & Charge Batteries?How Many Batteries Should I Have On My Boat?Why Won’t My Outboard Boat Engine Turn Over! Then you know that the stator is shorted to ground and you will need to replace the stator.if(typeof __ez_fad_position != 'undefined'){__ez_fad_position('div-gpt-ad-bornagainboating_com-leader-1-0')}; Then, on other stators, you can check the resistance between the wires coming out of the stator. Low voltage symptoms are weak fire or weak erratic firing of cylinders. Whenever the regulator rectifier goes bad, you always want to check other components of the system. Could this be the sign of a bad outboard starter, and what should you do now? An outboard motor’s voltage regulator takes the voltage supplied from either the flywheel and the stator or the alternator. You will need to test the stator and we’ll cover that in a second. Signs of a Bad Outboard Starter & How to Start the Engine. Be sure … W e lose $$ on service! If left unchecked by the regulator. We’d also like to invite you to check us out on Our YouTube Channel! First, connect the positive lead to the negative diode, with the negative lead to the stator input. Be sure that the rectifier or rectifier/regulator is in good order as well, if it's bad it could cause a repeat failure. Poor grounds, poor wiring, poor connections, etc. Visually Check the Stator, Trigger, Rectifier/Regulator and Flywheel: Cracks, burned areas and bubbles in or on the components indicate a problem. Your outboard stator is the "powerhouse" of your outboards ignition system. I bought a used 1997 Starcraft Stardeck pontoon with a 1996 40hp Mariner Magnum outboard motor. Most common signs of a bad coil are when the housing is cracked or allows leakage around the plug wire. if(typeof __ez_fad_position != 'undefined'){__ez_fad_position('div-gpt-ad-bornagainboating_com-medrectangle-3-0')}; This AC electricity is used by the engine to run all of the ignition components of the engine. You should be aware that different manufacturers are going to have different tests, different readings, and different styles of stators. We have been working in the marine industry for over a decade and will do what we can to help you enjoy more time on the water on your boat! Yet, this vital... Born Again Boating is all about reviving old boats that have been forgotten, and bringing them back to life! If you get a direct replacement, you should simply be able to connect the wires to one another. It is not uncommon for him to own and be working on at least three different boats at any given point in time! In comparison, the rectifier is responsible to convert AC power to DC. Request The Next Technician's Tuesday Video Topic. 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! You can set the meter to read ohms or resistance. What would be symptoms of having a bad rectifier on 2003 yanaha v star classic 650? Acting as a switch to deliver a high current from the […] You will need to test the stator and we’ll cover that in a second. We hope this article has helped you out in figuring out if your regulator rectifier is operating correctly and what it does! Warning: Battery reversal will cause severe damage to the CD units and to the rectifier. This is why you can have a bad stator, but the engine will still run, just very poorly. To activate your engine and crank it over you need a switch. So, if one winding will fail. Some of these stators will have a certain amount of resistance between the wires. Then the engine runs warmer than it should. With that disconnected. symptoms of a bad rectifier on outboard. It’s important to remember that this is a general test. Outboard Motors Electrical Troubleshooting Guides . Say you wrap a bag around the lower unit and loose cooling water. Here are all of the things that you need to know to figure out which of them applies to you! Also be sure the battery terminals are CLEAN and TIGHT. As to... Signs of a Bad Outboard Water Pump & Maintenance Tips. SPECS AND TROUBLESHOOTING SEQUENCE FOR OUTBOARD IGNITION. Here are some other articles that you will find extremely helpful and informational! It's my opinion that this points to a bad alternator, not a bad voltage regulator like I originally thought. Otherwise, you won’t be able to install a direct replacement. Once I get around 6000 it starts cutting up and wont go any higher. Makes all the difference in your experience out on the water. Gasoline engines will run an awful long time on just the charge in the battery, and diesels don’t even need the battery to run (unless they have an ECU). this can be monitored with a peak reading meter very easily. Now, you want to take various readings with the multi-meter. The warm temperature can melt parts of the stator. How Long Do Boat Batteries Last? And How to Make Them Last Longer! Though it won’t be a clear and cut situation. Additionally, having an excessively low or bad battery can also lead to an overheated or burnt-out regulator. Additionally, having an excessively low or bad battery can also lead to an overheated or burnt-out regulator. Because there is also a voltage reading that can be performed to see what kind of power the stator produces. You got the boat packed with your gear and your best friends. Rectifiers also convert tachometer output from the stator, allowing the tachometer to receive the appropriate pulse type and display the motor RPM. In outboard motors that just run a rectifier the boats battery will regulate it self. Do Outboards Have Alternators & Charge Batteries? If it is higher, it could mean that the battery is overcharging, requiring you to replace the regulator rectifier.if(typeof __ez_fad_position != 'undefined'){__ez_fad_position('div-gpt-ad-bornagainboating_com-banner-1-0')}; Thankfully, it doesn’t cost much to replace the regulator rectifier on your outboard, especially if you do the work yourself. 13 to 13.5 v. If voltage isn't coming up, it probably is bad. Print this page; Share this page; Ad. Find just about everything you need to know regarding how to troubleshoot your outboard's electrical problems. Those are the three main causes for a stator to fail. Or you see it has melted or burnt windings on it. There are many reasons for a stator to go bad. ?if(typeof __ez_fad_position != 'undefined'){__ez_fad_position('div-gpt-ad-bornagainboating_com-leader-2-0')}; Brian Jones has spent most of his career as an ASE Certified Master Tech. When you go to start the engine, it simply clicks. Thanks for reading and we look forward to reading your responses and comments.if(typeof __ez_fad_position != 'undefined'){__ez_fad_position('div-gpt-ad-bornagainboating_com-leader-2-0')}; Aaron has been working in the Marine Industry for over a decade and holds certifications for Yamaha and Mercury Marine. For a more in-depth description of how an engine works. And go by the specs found in the book to test the stator. We’d recommend reading this article here on How Outboards Charge The Boats Batteries By Either A Stator or An Alternator. A bad stator can have all kinds of funny, hard to trace symptoms. Then disconnect it. That makeup is what creates the spark for the engine to run. Tach check is also correct, if the tach is erratic, then the rectifier is probably going bad. I have a 1989 Mercury 80 horsepower outboard on my whaler and I just burned up my second rectifier in the last three months. The stator produces the electricity that the engine uses to operate the ignition system to run the engine.if(typeof __ez_fad_position != 'undefined'){__ez_fad_position('div-gpt-ad-bornagainboating_com-box-3-0')}; There are many different factors and variables to this question! 2. Other than tachometer reading lower than it might otherwise read, since the CDI prevents the motor running above X RPM. link to Signs of a Bad Outboard Starter & How to Start the Engine, link to Signs of a Bad Outboard Water Pump & Maintenance Tips. 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! It is easy to assume that the issue is a bad battery because of symptoms such as dimming headlights, irregular meter readings and poor starts. 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. our article about whether the engine will run with a bad stator or not here. Signs of a Bad Outboard Starter & How to Start the Engine. Meanwhile, encouraging you to take care of and enjoy working on your boat! And then it regulates it to the appropriate amount. Check Us Out!if(typeof __ez_fad_position != 'undefined'){__ez_fad_position('div-gpt-ad-bornagainboating_com-large-mobile-banner-1-0')}; Now that you know all about outboard stators and how to test them. There are generally two ways for the regulator rectifier to fail. The power pack on your Johnson outboard boat motor is a central part of the ignition system. Why Does My Boat Battery Keep Dying? You can also use adhesive-lined shrink wrap connectors and seal them with a heat gun. While these symptoms are generally clear-cut, we still recommend using our testing method above to ensure your problem is the regulator. some of the early carbed 3.1L motors would start losing charge coil output voltage and cause random plug fouling. Next, you want to connect the leads to the battery, while it’s running. Making the engine run very poorly. The best place to start is to look at the diagram that comes with your new parts or look at the existing setup to replicate it. 1. Most outboard engines run a regulated/rectifier charging system. Causing it to fail! The symtoms are that within 3 to 5 hours after a new rectifier is installed, the tach on the boat will quit working. Most of the time, there are two scenarios that indicate the regulator has failed. Then you could almost bet that it is bad. You won’t have any trouble diagnosing the faulty regulator rectifier if the battery is the cause. These are the … at about 60V peak output the ign coils start having difficulty making secondary voltage. Just Click Here! You can know you have a bad stator by looking at it. He lives outside of Dallas, TX with his family and loves anything mechanical. You’ll note signs right away like poor starts, fluctuating meter readings, and dimmed headlights. I took the motor … The CDI putting the motor into RPM reduction mode should have no effect on the tachometer reading. If you have wing nuts on the terminals, replace them with a couple of elastic self-locking nuts. If everything looks good, connect the negative lead to the positive diode before you connect the positive lead to the stator input.
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