There are some larger engines that will run with a partially bad stator. You shouldn’t see a reading of more than 14.3 volts or below 13.5 volts. Meaning, that one winding will produce the electricity that is used for one, two, or three different cylinders! Just Click Here! 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). Find just about everything you need to know regarding how to troubleshoot your outboard's electrical problems. Will determine how the regulator rectifier is tested using the diode feature on your meter. Visually Check the Stator, Trigger, Rectifier/Regulator and Flywheel: Cracks, burned areas and bubbles in or on the components indicate a problem. A malfunctioning or dead power pack can cause your Johnson outboard to have problems at start up. Next, you want to connect the leads to the battery, while it’s running. Written By . 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! Outboard Motors Electrical Troubleshooting Guides . There are many reasons for a stator to go bad. Just Click Here! On newer voltage regulators, there is also a rectifier, which can convert the AC current from the power generated to DC output. Just like before, there should be no reading on your meter. Do rectifiers give any advanced warning before they go or do they just die? And then it regulates it to the appropriate amount. Outboard motor coils are many times replaced unnecessarily. Why Won’t My Outboard Boat Engine Turn Over!? While at idle my motor is misfiring intermittently. The symtoms are that within 3 to 5 hours after a new rectifier is installed, the tach on the boat will quit working. 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. Symptoms of Bad Rectifier on Outboard Motor So, how can you tell if the regulator rectifier is bad before testing it? Your outboard motor contains a lot of parts on it, some you probably understand and many you might not. These are the … Or if the thermostat gets clogged with weeds, dirt, or sand. 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! Or you see it has melted or burnt windings on it. Either way, running your outboard without the voltage regulator at high RPMs can cause the stator to fry, leading you to more trouble down the road. 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! Because there is also a voltage reading that can be performed to see what kind of power the stator produces. This time the meter should have a reading, although the number itself is not important. Loose terminals kill stators fast. 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? You can know you have a bad stator by looking at it. Makes all the difference in your experience out on the water. As to... Signs of a Bad Outboard Water Pump & Maintenance Tips. Tach check is also correct, if the tach is erratic, then the rectifier is probably going bad. However, because the power pack has varying voltage levels, a peak voltage adapter will also … Now that you know all about them! Yet, this vital... Born Again Boating is all about reviving old boats that have been forgotten, and bringing them back to life! When I turn the key on, without starting the motor, and then turn it to the off position the tach will go to 0. Then connect the negative meter lead to any engine ground that is on the block. Most common signs of a bad coil are when the housing is cracked or allows leakage around the plug wire. Low voltage symptoms are weak fire or weak erratic firing of cylinders. Connect the positive lead to the positive diode. You will need to test the stator and we’ll cover that in a second. On a twin one cylinder fires and the other is weak or not firing. Herein, what will a bad rectifier do? We create all kinds of how-to and DIY videos. S/N:1b142608. this can be monitored with a peak reading meter very easily. What would be symptoms of having a bad rectifier on 2003 yanaha v star classic 650? Get Your Own Born Again Boating Apparel! 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. Get Your Own Born Again Boating Apparel! But, in the general sense, there are some tests that you can do on almost any stator and tell a lot of whether it has failed or not. Here are all of the things that you need to know to figure out which of them applies to you! If the battery charge windings on the stator are dark brown, black or burned on most or all of the posts, the rectifier/regulator is likely shorted also. Always check your other boat motor ignition parts before just assuming you have a bad coil. Most outboard engines run a regulated/rectifier charging system. 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? Back to those 13.5-14.3 VDC readings. This indicates that the rectifier has failed to convert excess power appropriately. 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. That is unless there is an issue with the stator or alternator. A bad stator can have all kinds of funny, hard to trace symptoms. If you need to make modifications, connect the appropriate wires together and solder them to prevent corrosion. I am working on a 2005 Mercury 50hp 2-stroke Outboard Motor. Engine is hard to start especially after sitting from a run. Will An Outboard Run With A Bad Stator? Despite the low voltage reading the charging system must have been working to some degree, since we were never stranded with a dead battery. harsh warm saltwater opposed to cold clean freshwater. This is why you can have a bad stator, but the engine will still run, just very poorly. How Outboards Charge The Boats Batteries By Either A Stator or An Alternator. You will need to have a digital multi-meter. 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! A stator is also the component that creates the charging power for your boat’s batteries. 13 to 13.5 v. If voltage isn't coming up, it probably is bad. You can also use adhesive-lined shrink wrap connectors and seal them with a heat gun. The motor will continue to run fine. This malfunction causes the regulator to burn out because of intense heat buildup. Without the correct voltage, your outboards starter motor may not be able to crank the flywheel fast enough to activate your ignition system. They provide voltage to your switchbox or CDM's. symptoms of a bad stator on outboard motor Home; About Us. But the replacement of this part is relatively easy and usually doesn’t require any special tools at all! 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. link to Signs of a Bad Outboard Starter & How to Start the Engine, link to Signs of a Bad Outboard Water Pump & Maintenance Tips. This water cooling can take it’s own toll on the component, if you are running in harsh warm saltwater opposed to cold clean freshwater. The stator can also become damaged, as the regulator is in direct connection with this vital component. Having a bad stator is going to take away from that experience! our recommendations for a meter on our resources page here. Yet, this vital... Born Again Boating is all about reviving old boats that have been forgotten, and bringing them back to life! Because of where the voltage regulator is located on the outboard ignition system, it endures a lot of abuse. Connect the negative lead to the stator input. Today, he spends his time freelance writing and consulting. Clicking this will make more experts see the question and we will remind you when it gets answered. Most Mercury Outboard Stators perform two important functions 1. W e lose $$ on service! Say you wrap a bag around the lower unit and loose cooling water. The CDI putting the motor into RPM reduction mode should have no effect on the tachometer reading. There are generally two ways for the regulator rectifier to fail. symptoms of a bad rectifier on outboard. WARNING!! Low voltage can result from many things. If any of the above symptoms are evident, toss it: EVEN IF THE ELECTRICAL VALUES ARE CORRECT, it's toast. Additionally, having an excessively low or bad battery can also lead to an overheated or burnt-out regulator. Will determine how the regulator rectifier is tested using the diode feature on your meter. 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. As the magnets on the flywheel spin around the windings when the engine is running. The power pack supplies voltage to the ignition system's power coils. Usually, the outboard will start and run without the rectifier. I will then check the rectifier with an ohm meter and find that one of the circuits is burned. Making sure that your outboard is running and reliable. CDI Electronics troubleshooting guide is listed below with tips, tricks and wiring diagrams. some of the early carbed 3.1L motors would start losing charge coil output voltage and cause random plug fouling. While the Chrysler/Force battery ignitions are similar to OMC's, care must be taken with regards to the color codes of the wires. 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! Why Won’t My Outboard Boat Engine Turn Over!? A stator is a component on an engine that is attached under the flywheel of the engine. In many cases, these are the basic steps you will need to replace the regulator. 2. You can set the meter to read ohms or resistance. However, this is not the case if you are using a two-stage stator. When the water-cooled regulator goes bad, it’s often caused by a weak or failing water pump. There shouldn’t be a reading on your meter. Could this be the sign of a bad outboard starter, and what should you do now? You got the boat packed with your gear and your best friends. First, the diode can burnout and cause the battery to drain. Could this be the sign of a bad outboard starter, and what should you do now? I would say that the main cause for a stator to go bad, is due to age, heat, and corrosion. Request The Next Technician's Tuesday Video Topic. Here are some other articles that you will find extremely helpful and informational! When the battery causes the problem, you will struggle with poor starting, accessories malfunctioning and fluctuating meter readings. Most manufacturers will include a wiring diagram to make the process smoother for you as well! myCast is the place for you! Making the engine run very poorly. We’d also like to invite you to check us out on Our YouTube Channel! In order to perform this test. If you are using a 40-amp output stator, there will be a large load put on the regulator. So a dirty engine can cause a stator to go bad. As well as running too hot. So it all depends on your engine and what kind of system it uses! The regulator rectifier is in charge of not only regulating the voltage produced by the alternator or stator, but it also rectifies the voltage by converting the AC power to the appropriate amount of DC power.if(typeof __ez_fad_position != 'undefined'){__ez_fad_position('div-gpt-ad-bornagainboating_com-box-3-0')}; In this post, we will look closer at what the outboard rectifier does, what happens when this part goes bad and how to troubleshoot issues that may arise with it! 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. The power pack on your Johnson outboard boat motor is a central part of the ignition system. So, if one winding will fail. Whereas larger engines, that have 4, 6, or 8 cylinders. And How to Make Them Last Longer! You will want to double check the service manual for your engine to ensure the test procedures and wire colors for your engine. 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. As we said earlier. While these symptoms are generally clear-cut, we still recommend using our testing method above to ensure your problem is the regulator. Im wondering if that could make me lose spark and cause the bike to miss. And go by the specs found in the book to test the stator. The engine’s flywheel has magnets attached to the inside of it, that spin around the stator. Low voltage symptoms are weak fire or erratic firing of cylinders. 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.
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