What are the symptoms of a bad cdi on an outboard. You can rebuild the unit or purchase a new one.

Your trusty outboard purrs to life, slicing through the water with familiar ease. Problems with the ignition system can also be a common sign. Basically we had a problem of salt water contaminating the fuel and discovered the Your outboard switchbox sends voltage to your ignition coils or CDM's to provide a good spark to the spark plugs at just the right time. Bought an F50TLRY used. I can usually diagnose engine problems using process of elimination, but this has me baffled. The module takes a steady flow of low voltage DC current from the regulator, briefly stores it, and allows the current to charge and the voltage to build up. For sure you got the Your outboard engine, a symphony of pistons and power, relies on a crucial conductor: the rectifier. Conclusion: Mercury Mariner Bad PCM Symptoms Mar 7, 2017 · SUBSCRIBE! This is how to diagnose and replace a bad outboard power pack. Faulty or damaged coils will have weak or no output. I imagine that it would just act like an "electrical issue". If your outboard engine has no spark, it could signal a bad trigger. The transmission may have a hard time shifting, or not even be able to shift at all. Being attuned to the symptoms of a bad power pack is crucial for maintaining the optimal performance of your Johnson Outboard engine. It is one kind of automotive electronic ignition system, used in motorcycles, outboard motors, chainsaws, lawnmowers, turbine-powered aircraft, small engines, etc. and rev limiter functions inside the power pack. Engine Performance: Loss of Power: This is one of the most noticeable symptoms. I just wondered what the symptoms were if you actually did have a dead CDI and that was the only thing wrong with it. Aug 25, 2011 · Electronics can just "die" on their own but moisture , heat, vibration all speed up the process. Find the model number of your CDI/ power pack 2. Have checked just about every wire I can find a lead Nov 10, 2023 · There’s a detailed explanation of of a bad trigger outboard symptoms and much more discussed in this article. Jul 23, 2022 · Symptom 1: No Spark: Engine Fails to Run. lose a coil and you lose one bank of cylinder spark. If you find yourself repeatedly pulling the starter cord or engaging the starter motor without success, it’s time to consider the ignition system as a potential source of the problem. Jan 29, 2014 · Having problems with our Honda 90 four stroke outboard fitted to our Dive Club Rib. Personally I now use a timing light like you used to use in setting the timing on cars with points and a coil to check my CDI spark. I found another bike and started swapping parts - I suggest you try to find a bike like yours and swap CDI's. there are two charge coils for the CDI mounted on the stator ring. This info helps. Sometimes water gets into the electronics somewhere (even on models that are "potted" with ceramic or silicone) and either corrodes or shorts the electronics. Mar 14, 2019 · It depends on every situation in particular. Jun 17, 2013 · Re: How to know if I got a bad trigger? The trigger coils generates about a 5v pulse to the CD Modules to fire the coils. A malfunctioning or dead power pack can cause your Johnson outboard to have problems at start up. 8. Boat not getting on plane. Jun 10, 2015 · See this video for information on making a DVA: https://youtu. Aug 21, 2017 · Im not getting any spark at all and the stator tested ok according to the cdi test procedure. To avoid headaches, it’s best to prevent a failure from occurring in the first place. Outboard Engine Starting Problems One of the most notable symptoms of a failing spark plug is an engine that has trouble starting. Does this mean the timer base is bad? May 19, 2024 · This is a TCI box. When dealing with electrical components behaviors there's 3 conditions : Good, Kaputt or Intermitent, being the latter the most PITA to troubleshoot and diagnose properly. Mar 29, 2014 · The consensus seems to be that CDI's generally don't go bad - but I spent last summer chasing issues similar to your's on my yz125, my problems also started with a bad stator. Sometimes, a bad CDI does not cause sparks at all. Dec 23, 2007 · Re: 1989 Yamaha 40hp 2 stroke 3 cyl CDI issues The 15-20 seconds thing is normal. 5 Symptoms of a Bad Ignition Sensor on a Mercruiser Outboard. compression test - you want the lowest to be within 10% of the highest. Turns out my CDI was bad. On an electrical engineering level, it's different from CDI, but the troubleshooting process is the same. The trigger sends a signal to produce the required spark to ignite the fuel. Symptom 1: Battery Drains Very Quickly. I tested the timer also and the ohms reading is ok on the black to black/ white wire. You can rebuild the unit or purchase a new one. A clear sign of a bad rectifier is a battery that drains quickly. When problems do arise with the ignition 1 day ago · Symptoms of a defective CDI. Prevent a Bad Outboard Fuel Pump & Other Issues. So, what are the bad Mercury outboard fuel pump symptoms? Sputtering while igniting the engine is the most common symptom for it. Jun 10, 2003 · If the tach operates, the rectifier is okay. CDI's complexity is in its circuitry, but its ancestors relied on clever mechanical systems to fire the coils. I said at the time, what was required, was better CDI units, and for the manufacturer to supply new units at cost, or less. CDI #511-9701 Battery CD Tester: CDI #511-9710 Trigger Tester: CDI #511-9766 Spark Gap Tester: Jumper Wires: A Large proportion of the problems with the battery CD units are caused by low battery voltage or bad ground connections. There are a few causes for which you can have a bad coil on a Mercury outboard. A thorough diagnosis by a qualified marine technician is always recommended for confirmation and proper repair. org Nov 15, 2019 · The most common thing I get asked over the phone to assist with is diagnosing outboard ignition problems. Components can fail with age or use but the above listed conditions don't make them last longer. But wait, something’s off. L. Backfiring Jul 17, 2013 · Re: Mercury 9. The symptoms of a bad Johnson power pack are reduced boat speed, constant misfiring, and difficulty starting. Without getting deep knowledge of its possible symptoms and causes, you can’t deal with it in the future for fixing. Any recommendations on a good manual? I do have a Clymer manual and a manual on CD. Go here Outboard Lower Unit Rebuild Cost. A sharp drop in DVA on less than all cylinders will normally CDI Electronics Troubleshooting Outboard See full list on boatingsports. <br /><br />The 1989 150hp OMC outboard engine can be equipped with either a low amp stator or the hot running 35 amp stator. BBBE 101 1579 is stamped in the block. Oct 25, 2013 · stator failure on the OX66 motors for the two CDI charge coils will take out one bank. Misfiring after a few minutes of running can be caused by excessive (Over 15. If you are mechanical, it would cost you far less money to rebuild the lower unit than to purchase a new one. Low voltage can put the motor into RPM reduction mode. Shipped it where I live and now I am getting zero spark. There are various symptoms that can be derived from a defective cdi. Jun 14, 2023 · Understanding the symptoms of a bad kill switch can help you identify the problem early on, potentially saving time, money, and, most importantly, ensuring your safety. Again, when a CDI box is about to go wrong, it can lead to misfires, issues with starting, rough running, or even stall the motor. O. Others can be gasoline or injected engines. But when this crucial electrical component goes rogue, your once-reliable boat can turn into a frustrating puzzle on the water. <br /><br />The stator price depends on which ampere model you have but it will be two or A healthy primer solenoid is the unseen hero of your outboard engine, quietly ensuring fuel flows for a smooth start. Jun 14, 2008 · If just one circuit was bad you can have no spark to just one cylinder, thats why I stated that you needed to check the resistance though each circuit of the trigger before replacing the power pack. But the most easily visible and common sign of a bad stator on the outboard is when the engine fails to start because of weak or no spark and the stator is covered with salt & corrosion. Remember: While these symptoms can point towards a bad coil, they can also be caused by other issues like faulty spark plugs or fuel delivery problems. 9 Cdi box issue CDI company manufactures those units and has a nice www including troubleshooting instructions. Jul 23, 2022 · What are the Symptoms of Having an Air Leak in the Fuel Line? The symptoms of air leaks in the fuel line mainly depend on the type of outboard engine. One of the most noticeable signs of a faulty ignition coil is difficulty starting the outboard engine. Remember, early diagnosis and timely action can save you time, money, and the frustration of being stranded on the water. By understanding the symptoms and implementing preventive measures, you can keep your Mercury outboard running smoothly and avoid the stress of a bad trigger ruining your boating adventure. Modern fuel systems on outboard engines are complex. As such, it is essential to be aware of the symptoms that may indicate a problem with this vital component. Why Do Outboard Stators Go Bad? There are many reasons for stator failure, such as aging, overheating, deformation, wear during use, which may lead to stator damage. I am a total amateur, so it is quite a blessing to be able to pick the minds of so many experts. 1L the ign timing and fuel injection map is controled by the ECU based on various sensor inputs. A series of small coils pertain to the battery charging system and of course are also pertinent to the tachometer's operation. Sep 25, 2017 · For a starter install a new spark plug well gaped and check OB behaviour . Both have remove/replace instructions, but neither had the specifications on resistance or voltage necessary to test coils/CDI unit. Happy boating! Share Common Symptoms to Detect a Bad Trigger on Your Outboard with your friends and leave a comment below with your thoughts. Happy boating! Share 6 Common Symptoms of Bad Spark Plugs on Your Outboard with your friends and leave a comment below with your thoughts. You may experience sluggish acceleration and difficulty reaching top speeds. Jun 25, 2012 · I searched the forums here and found the issue with my power pack. A subtle cough, a sluggish response, maybe even a disconcerting rattle—could it be your outboard suffering from a bad case of timing? In the world of marine engines, a misaligned heartbeat can throw the whole symphony out of tune. 40 hp which was just diagnosed with a faulty switchbox by CDI's tech support. Over time, the inside of a carburetor gets coated in deposits left over by the Pulser Coil and CDI Module. They are quite easy to recognize (or, more like, impossible to ignore), even for beginners. About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright By staying alert to the symptoms and taking prompt action, you can keep your outboard’s spark plugs in tip-top shape and ensure smooth sailing for many nautical miles to come. CDI Electronics has the spark plug wires available as a set, P/N: 931-4921. On top of that, there is no chance to neglect its necessity because if a reed valve turns faulty, several problems will be noticeable around the engine, AC compressor, and acceleration! Jan 28, 2009 · True. The stator wires may be corroded by dirty engines or burned due to overheating. Jan 13, 2010 · hi i have a 30hp yamaha with a cdi problem?. 5. I've never heard of many CDIs going bad either. Some of these problems can also be caused by a bad injector connectors, fuel pump or bad gas. Jul 5, 2016 · Hello, I hope somebody can help with my no spark problem. So, what are the symptoms of old or bad gas in a boat? Symptoms of old or bad gas in a boat are either the boat will have rough idle, reduces fuel economy, stalls frequently while accelerating (fails to start). By staying alert to the symptoms and taking prompt action, you can keep your outboard’s trigger in tip-top shape and ensure smooth sailing for many nautical miles to come. all cylinders will normally be caused by a bad stator. Sep 5, 2016 · Thank you, guys. I hear guys say they think they are bad, but it ends up being the coils, stator, TSS switch, bad ground ect. 2002 yamaha 60trla with CDI Yellow Circuit CONNECTED - YouTube Here's what the engine sounds like with the CDI yellow circuit disconnected and I rev the engine. Here are 9 common reasons why an outboard dies at idle: Keep… Mar 28, 2023 · And the symptoms get worse if you’re overlooking such a situation for a long time. It looks like today may be nice enough to get outside and check it out a bit. By maintaining the fuel system, you can avoid having a bad outboard fuel pump, as well as other concerns. A damaged reed valve can cause a significant drop in power, especially at lower RPMs. I paid about $40 for a CDI unit for my 1974 6 hp outboard motor. So, we are not going to talk about them. Some power packs also have a S. Mercury Mariner ignition coil diagrams, coil packs, and repair manuals. Of which you will be able to use a multimeter to test. May 26, 2020 CDI Quality – Better than OEM; Jun 26, 2017 CDI Electronics Supports the 2017 National SkillsUSA Competition; Jun 28, 2016 CDI Electronics Announces New Lower Pricing for Ficht EMM Repairs; View All Posts The above are symptoms of fuel injectors that might be gummed-up, dirty, clogged , rusty or those that might have electrical problems. Feb 26, 2007 · When a CDI goes bad it is often due to mechanical failure triggering an electrical failure. Without having plenty of ideas on the bad reed valve symptoms, you can’t deal with any of its issues. There are several potential causes for a CDI box to go bad: Electrical Overload: Excessive voltage or current can damage the CDI box. A little CDI history. Misfiring engine. Receiving voltage from the CDI unit the coil will amplify voltage and shoot it through to the spark plug. Jul 23, 2022 · Conclusion. Engine fails to run and has no spark. However, you can not address this without proper symptoms. My question is - Would a very small amount of voltage on the kill switch Unless you know the symptoms of old gas in your boat, you can’t just toss the gasoline away. Take a look! An outboard trigger is a device used to trigger an external device or system, such as a camera, flash, or audio recording device. RodBolt17 says that the pulser coil is probably not bad. The SM calls for 290v @1500rpm. Using the DVA I tested the ignition coils according to SM. Difficulty Starting the Engine. 2. Aug 21, 2023 · This is also possible in 4-strokes when the oil filter is clogged, or the oil injection system has gone bad (like a cracked or clogged hose). Feb 27, 2024 · Often a faulty CDI unit will see intermittent or no spark on cylinders and may only breakdown when your engine warms up. Oct 30, 2017 · Thanks to everyone. A faulty or failing switchbox can cause one or more symptoms. The CDI is not easy to diagnose because the observable symptoms of a faulty CDI box can lead to different directions. Poor Shifts. This unsung hero converts the alternator’s alternating current (AC) into smooth, steady direct current (DC) used to charge your battery and power onboard electronics. In the mean time I found a website that shows what you should see on every CDI/ power pack and on which lead you should see it. Dec 11, 2023 · 1. The power pack on your Johnson outboard boat motor is a central part of the ignition system. This was a brand new switch box which was replaced no more than a month ago due to a weak spark and voltage output issues. The switchbox(s)are energized by the stator under the flywheel. Apr 21, 2013 · Here's what it sounds like with the CDI connected when i open the throttle. To test the faulty CDI we need a multimeter, Outboard engine, Spark plug tester, and Spark plug wire to test perfectly. May 30, 2012 · Re: Symptoms of bad rectifier? The stator under the flywheel is a two fold component. A clogged boat gas tank vent can cause problems filling the tank, a strong gasoline odor, reduced fuel efficiency, and stalling or engine misfires Power Pack (Ignition Module) for Johnson Evinrude Outboard A power pack, or ignition module, is the device that controls the timing of ignition functions on all engine cylinders. Nov 20, 2022 · If a CDI box goes bad, it can lead to various issues and problems with the motorcycle's performance. What is a Capacitor Discharge Ignition System?. Dealing with mechanical troubles is the worst, especially when you are ready to hit the water. A kill switch, also known as an emergency stop switch or engine cut-off switch, is a critical safety device designed to quickly shut off the boat’s engine in emergency situations. Don’t Let Your Outboard Sputter: By understanding the signs and symptoms of a bad stator, you can take control of the situation and keep your outboard engine running smoothly. We will include all the symptoms so that you understand the issue regardless of your engine type. Here are some symptoms of bad outboard spark plugs, as well as tips on how to test and replace them. 1. If your vehicle is not starting or running properly, one of the first things you should check is the condition of the CDI box. Boats guide. There are many reasons as to why an engine could misfire. Hint if the flywheel has cooling holes near the outer rim, it's a 35 amp system. The checklist for an outboard that remains running poorly at idle is the same as for when it stalls while idling. Initially the CDI seems to advance and then die back to idle. If there is a Honda outboard motor dealer nearby, take the outboard motor immediately to the dealer. thank you7 Jul 5, 2024 · After learning how to test outboard cdi box with multimeter, many people want to know the bad CDi box. One problem that many boat owners come across is the outboard motor stalling while at idle. Low Voltage symptoms are weak erratic firing of cylinders. You can use a multimeter to test the power pack. However, like any machine, they Nov 25, 2022 · OMC, makers of Johnson and Evinrude outboard motors also had problems. If you don’t know the exact causes of a bad outboard stator, it’s impossible to deal with them in the future. If you have a bad outboard lower unit, you have several options. But i am not getting any ohms to show up on the white to purple, white to blue,and the white to green wires. I spoke with a guy yesterday that had me test the overheat alarm and realized I dont have the buzzer. I have never had any experiance with the CDI, and didn't know what the symptoms were when one startsto go bad. I hought a boat with a 25hp 2-stroke Suzuki DT25 from the 1980's. The ignition is self contained, getting it's power from seperate coils (charge coils) in the stator. each charge coil provides the current to charge the capacitors for one bank. Mercury outboard engines are built with quality parts that are designed to give you the best boating experience possible. Regular inspections, prompt attention to unusual engine behaviors, and following manufacturer guidelines for maintenance can go a long way in preventing and addressing power pack-related issues. Below are 3 most common signs: 1. Fuel System Failure. Ignition Coil. Scenario 1 1. Symptom 1: Engine Having a Hard Time Starting The first and most common symptom you will see when the primer solenoid goes bad is the engine’s difficulty starting. 3 Possible Causes of Bad Stator on a Mercury Outboard. Some might be petrol engines or diesel engines. If doing so is not an option, proceed as follows: 1/7 1. These 6 symptoms are typically related to an outboard motor’s bad rectifier. (speed limiting operator warning) function that limits the RPMs the engine is capable of attaining. Odds are you have a bad power pack, that is the most common part to fail and give the symptoms you have. Getting the help of a professional mechanic would usually be your best bet. be/juhri_NxQcQIn this video I go through testing the CDI ignition on and outboard motor to diag Jul 23, 2022 · You need to know about the problem. Oct 10, 2023 · Symptoms Of a Bad Ignition Switch on an Outboard The symptoms that you will see happening on your boat when your ignition switch starts to go bad are the same three things from the introduction. Aug 4, 2020 · This video is the diagnosis of a bad Switch Box or in this case a CDI. This can occur due to a faulty voltage regulator, a short circuit in the electrical system, or a power surge. Low voltage symptoms are weak fire or weak erratic firing of cylinders. Even though the causes seem to be common, it’s better to keep each of them noted: 1. Jul 23, 2022 · Bad Stator symptoms may vary based on the engine or motor type and sometimes become hard to figure out. under light to heavy load after unit warm up the engine all most stalls and then picks up again and then problem repets itself. The wiring had all been dis-connected in the engine and I have a manual showing the 4 wires coming out of the CDI unit. Don't know if a bad oil switch will account for those symptoms. First off, pay attention to any signs of a weak or inconsistent spark in your vehicle’s ignition system. When a CDI box is bad, the motorcycle may experience any of the following symptoms: Soldering Projects for Beginners. Jul 23, 2022 · What Are the Symptoms of Bad Rectifiers On Outboard? To learn about a bad rectifier, try looking out for the following symptoms. 5 Volts DC) voltage at the pack. Other than tachometer reading lower than it might otherwise read, since the CDI prevents the motor running above X RPM. Troubleshooting tips: Bad ignition coil symptoms, ignition coil replacement, Mariner ignition coil, Mercury ignition coil, Mariner ignition coil testing, Mercury coil, Mariner ignition parts, coil test for Mercury Mariner outboards, Mercury ignition switch wiring. Low voltage can result from many things. I went and took some new measurements of the pulser and called CDI Industries. They are listed here below. The outboard doesn’t make any noise when you turn the key, the engine doesn’t shut off when you turn the key off, or the engine will just Note: A large portion of the problems with the battery CD units are caused by low battery voltage or bad ground connections or high battery voltage. Turned over fine when I bought. Aug 23, 2012 · I have a 82 merc. The power pack supplies voltage to the ignition system's power coils. Mar 28, 2023 · 3 Possible Causes of Bad Coil on Mercury Outboard. Andy Greaser photo. However, like all engines, outboard engines are prone to specific issues. Maybe damaged wires from handling?? cause problems inside the power pack from RFI and MFI noise. Rinse the outboard motor with fresh Jul 23, 2022 · One of these issues includes the bad Johnson powerpack. A breakthrough at CDI Electronics has allowed the use of microprocessor digital control circuits to handle the timing, Quick-Start, S. The person I talked with verified that I probably don't have a bad pulser. If the trigger fails to deliver the signal, the ignition will not occur, and the engine will not start. Jul 23, 2022 · Thus, your outboard will show various symptoms when this breaks, and we will go through each of the symptoms below. The engine is about 1997, Identifier number is BBBL 1008759 on the transom bracket. Maintenance on these engines is relatively straightforward, and many of them sit for an entire off-season without being started. Once you have completely understood what the CDI is? and the basic components and functions of CDI, the next step is to test if you have a sign of bad CDI. W. Nov 10, 2023 · What are the symptoms of a bad CDI on an outboard? The CDI (Capacitor Discharge Ignition) is an important component of an outboard motor’s ignition system that helps to create and distribute the electrical charge needed to ignite the fuel mixture in the engine. Whilst I am always happy to try and help in diagnosis, it can be very hard to do so over the phone. Aug 7, 2007 · Re: Symptoms of bad "Power Pack" ? yes, bad gas will make it run badly - before you start throwing parts at it, do this: 1. Not much current involved so don't expect to see any burn marks or signs of overheating. However, there's one more thing you can do to troubleshoot an outboard that runs poorly at idle: Clean the Carburetor . The manual is much better. Clogged gas tank vent symptoms can be hard to spot, but if left unchecked, they can damage your boat’s performance. the CDI is still the same. Outboard motors are designed to provide years of trouble-free operation, and nothing spoils a weekend outing like one that will not run properly. May 14, 2018 · The CDI putting the motor into RPM reduction mode should have no effect on the tachometer reading. Oct 3, 2007 · Re: Signs of a dead/bad switchbox?? There isn't any direct connection between the ignition and the battery. You might have blown other electronics, though, like the oil alert module, and possibly tachometer, radio, etc. The short form of the Capacitor discharge ignition is CDI which is also known as thyristor ignition. the CDI is part of the ign producing function, the ECU and sensors simply modify it. It would seem with new bikes being made in different countries, we are going back in time. Excess consumption of fuel, an overheated outboard motor, and faulty valves are symptoms too. Oct 23, 2010 · in normal mode on your 3. A pulser coil is a switch that sends a trigger signal to the outboard’s capacitor discharge ignition (CDI) module. The CDI's job is just to send a spark so if you think it is not sending one to the 3rd cylinder you can attach a timing light and see if it stops sending. This is an expensive repair, as the cylinders will need to be rebored and the piston and rings replaced. Outboard engines are a convenient and practical way of propelling your beloved boat through the water. I sat back and regrouped. By James Clane December 19, 6 days ago · The signs of a bad CDI box can be tricky to diagnose without proper testing. Read More 6 Common Symptoms of Bad Spark Plugs on Outboard. I’m just using a VOM (volt / ohm meter and DVA adaptor) to troubleshoot the problem pi May 29, 2020 · A bad fuel pump, ignition problems, clogged fuel filter, bad mass airflow sensor, and bad crank/camshaft sensors are just a few of the problems that can cause an engine to not start. Some of them are very rare and can happen once in a thousand cases. First off, amazing to see the insights on this forum. Jul 23, 2022 · Knowing the symptoms of a clogged gas tank vent is essential if you own a boat. Remember, a happy engine means a happy boater! Apr 17, 2022 · Common Symptoms of a Bad CDI Box. First half of video is how to replace a power pack and the second half is how to di Jan 10, 2013 · Re: Yamaha 90 Power Pack / CDI Question symptoms were 93 Yamaha 90 2 stroke that dies whenever i put it in gear for about the first 20-25 mins of getting on the water (idles fine and revs fine in neutral) - then it will start slowly sputtering when accelerating then finally get on a plane. Oct 21, 2022 · A CDI box is used in motorcycles and other vehicles to store electrical energy and deliver it to the spark plugs to ignite the air-fuel mixture in the cylinders. . Here are 3 of the main and common causes of a bad coil on a Mercury outboard: Corrosion; Improper maintenance A submerged outboard motor must be serviced immediately after it is recovered from the water in order to minimize corrosion. Aug 12, 2023 · What Are Symptoms Of A Bad CDI Box? Backfiring, misfired engines, rough start-ups, engine stalls, dead cylinders, and other ignition issues are some symptoms of a defective CDI box. Remove the engine cover 2. Here are some of the most common symptoms that may point to issues with a CDI box: Misfiring engine: A misfiring engine is one of the most prevalent signs of a Aug 22, 2020 · That's why your stator may be damaged, but the engine will still run, very bad. Outboard Runs Poorly When Idling. 2002 yamaha 60trla with CDI yellow circuit DISCONNECTED - YouTube I'll see if I can borrow a dev meter. Most of the bad triggers that I've seen are bad due to wires rubbing against the flywheel. i would like to carry out some spec check on cdi and sator all have you heard of this problem before. However, this is going to require more of your time than simply making a purchase. rc ld kq gv fg uh ls cr oi ng