There should be no connection from the – terminal to engine ground. Battery negative (-) connects to the black wire…. com CDI Electronics 353 James Record Road SW Huntsville, AL 35824 UPC 961-0002 THE WORLD’S LEADING. Includes an overview of the 4, 5 and 6 HP T Get help with our Yamaha outboard troubleshooting guide. If your motor still won’t start, check to see if the battery is good. First let's look at the trim switch. If you’re having trouble starting your outboard then the first thing you should do is to unscrew the cover and then extract Jun 5, 2024 · If it isn’t, it will cause your engine to become fuel starved, run rough, and eventually stall. 73. There is no chance of any leakages. Thirty years ago when an engine refused to start, a cranky ignition was likely the cause. Before you can diagnose what the problem is, you should have a basic understanding of what your outboard ignition system does and how it works. A. #2. Dec 7, 2016 · CDI Electronics | Outboard Motor Parts | Ignitions | Marine Feb 23, 2021 · So what if your outboard won’t start? In this short video from Boats. Always start troubleshooting with the simplest items first. 9 HP 2 cycle, 2 cylinder outboard which has a weak or no spark at the spark plugs. He’ll explain the role each part plays, from charging the battery so Online catalog for CDI Electronics marine engine ignition products and outboard troubleshooting guide. Check the voltage on the red and white Ignition wires at the CD Unit. 3. Battery voltage on the kill circuit will destroy most CD units. Once you're sure the outboard is getting electricity, the next thing to check is whether it's getting any fuel. If the engine’s ignition has spark, the stop circuit has a fault. No Or Weak Spark: No spark or sometimes visibly weak spark is the root sign that directly indicates that you need to check on the condition of the stator. Jun 3, 2023 · An outboard engine can cut out due to various reasons, including fuel delivery problems, clogged air filters, fouled spark plugs, damaged ignition system components, or overheating. Connect a spark gap tester to the spark plug wires and check for fire on all cylinders. 3829 to help you accurately diagnose all types of ignition problems and help you order the Jul 1, 2023 · Ignition system problems: Spark plug issues: Check the spark plugs for fouling, damage, or improper gap. If your boat won't start and has no spark the ignition kill switch circuit may be bad. In this blog post, we will explore some common problems with the Mercury Optimax 115 and provide solutions to help you troubleshoot and maintain … Mercury Optimax 115 Problems: Common Issues Jul 23, 2022 · If the kill switch looks damaged, replace it and put the gear on neutral before starting the engine. Kill switch disconnected. Check the Crank Position Sensor and the Throttle Position Sensor. 5 volts, and anything below 12. 09974454 and ABOVE 1997, Mercury Marine 90-852572R1 JANUARY 1998 Printed in U. This is important to keep an engine from running at overly-high revolutions during Turn the Ignition switch in and off several times. Disconnect the Yellow wires from the rectifier and retest. You hit the remote trim switch to trim the engine up/down and nothing is working. If it’s significantly different or shows no reading Jan 3, 2024 · Outboard ignition system: how it works Troubleshooting guide cdi electronics Ignition system basic cdi parts engine electronics Mercury Mariner 80's CDI outboard ignition Part 2: switch box/power Ignition outboard works cdi pulser components Home made cdi for outboard. If the ignition works properly, replace the mercury switch. (Excludes Japanese Mariner models) Performing tests on ignition components requires that you have the proper equipment to do so. On top of this, some users also mentioned issues with the engine stopping every few minutes. Oct 7, 2020 · Check to make sure that the shifter is not in forward or reverse. Also for: 30 efi, 25 efi jet. If the engine has a tiller handle, check the push button stop switch. org The wiring diagram for the ignition switch of a Johnson outboard motor typically shows the connections between the ignition switch, battery, starter motor, and various other electrical components. This issue can be caused by a variety of factors, such as a blocked water intake, a damaged impeller, or a clogged cooling system. 2) Visually inspect Stator for cracks or varnish leakage: If found, replace the Stator. Battery switch is off. Ignition coil malfunction: Test the ignition coil to ensure it is producing a strong spark. If the engine has spark, replace the rectifier. Failure of the Oil to Lubricate the Cylinders. Also for: 75 marathon, 75 sea pro, 115, 125, 65/80 jet, 90, 100. Jul 23, 2022 · Sometimes, it obstructs the connection between the battery and causes the power pack failure. - fuel tank connector. Verify ignition timing after engine has warmed up and the White/Black wire is grounded, according to the service manual. Failure Issues With The Harmonic Balancer (HB) The Harmonic Balancer or HB is a part of the engine that acts as a shock absorber to remove any unwanted vibration caused Disconnect BOTH of the Black/Yellow stop wires AT THE POWER PACK and retest. Summary of Contents for Mercury 40. Mariner coil. Ignition mercury outboardMercury marine ignition switch wiring diagram 1972 95hp outboard Mercury outboard switch wiring diagram key box motor classic Jul 23, 2022 · The symptoms of the bad stator are usually similar to the below-mentioned and explained indications: 1. Mercury/Mariner DVA (Peak reading) and Resistance charts. Check the Ignition Modules. Jul 1, 2023 · Dealing with a Yamaha outboard not reaching full RPM can be frustrating, but understanding the symptoms, causes, and potential solutions can help you navigate through the troubleshooting process. Install the engine cover. Corrosion On The Lower Unit. This is usually a result of a fault in the electrical system, such as a blown fuse. If the reading stays low – the trigger is bad. Aug 11, 2005 · Help, I have just encountered some type of ignition failure on my 1995 25 HP 2 cycle Mercury outboard 0G153788. 2. If the ignition now fires, replace the rectifier. 4. May 19, 2021 · What do you check if your outboard has a spark but won’t start?In this installment of our series on your outboard ignition system, we’re going to guide you t A power pack, or ignition module, is the device that controls the timing of ignition functions on all engine cylinders. Switch Boxes. Sep 1, 2020 CDI Electronics Receives Supplier of the Year Award from the NMDA; Jun 2, 2017 CDI Electronics and Balmar Select S. Move the shifter into gear and back to neutral to make sure it's correctly set. Do not use the choke, open the throttle all the way and try starting again — it will usually take at least 2 to 3 pulls. 1. Jun 11, 2020 · Ignition troubleshooting Mercury 40 horsepower and 30 horsepower outboard engines. See full list on boatingsports. Make sure the outboard is fully primed with fuel. Do not rev it up out of the water, as it can cause serious damage to the motor. 772. If wiring is OK, replace Ignition Module. net, John will guide you through troubleshooting an outboard that won’t start by address Always remember to treat the outboard engine with respect. be/juhri_NxQcQIn this video I go through testing the CDI ignition on and outboard motor to diag If your outboard is getting fuel and air but has difficulty starting or misfires once it's running, the problem could be ignition failure. #1. NO SPARK ON ANY CYLINDER: Disconnect the Black/Yellow stop wire(s) AT THE POWER PACK(S) and retest. Check resistance from the blue to the blue/white stator wire. 3 Problem #3: Rough idle. Warning! This product is designed for installation by a professional marine mechanic. Check the ignition coils as follows: Check resistance from + to – terminal reading should be 0. Check the stator resistance. - Fuel filter. Includes DVA Explained, recommended Shop tools, testing with minimal equipment, voltage drop measurement, troubleshooting battery charging issues and many more! THE LEADER IN OUTBOARD REPLACEMENT IGINITON PARTS. Product-specific diagnostic information and complete test instructions are Description. In this video from Boats. The engine uses high voltage for ignition and contains several moving components. The lower unit (LU) on an outboard engine is the bottom part that houses the propellor shaft and the gear casing. Osgood Company for RV and Upper Midwest Marine Sales Representation Johnson Outboard Ignition Systems. Troubleshooting tips: Mercury Mariner switchbox problems, Mercury switch box replacement, troubleshoot Mariner switchboxes, Mercury Mariner ignition components. Squeeze the primer bulb a couple of times to prime the fuel pump. Actually, "better" is Jan 29, 2024 · The common beep codes found in Suzuki outboard engines include various combinations of short and long beeps, indicating different types of issues such as low oil pressure, overheat, or engine fault. Stator. Check the key switch, harness and shift switch. Maybe once a month, after the boats been sitting awhile (W/O being started), I'll go out and crank it up on the muffs. Mercury Outboard Parts Powerheads Mercury Propellers Mercury Outboards: Troubleshooting No Results To Display. Set a multimeter to DC volts, then connect it to the positive and negative side of the battery. The 3 wire motor has a “Black”, “Blue”, and a “Green wire. Jun 10, 2023 · The Mercury Optimax 115 is a popular outboard motor that is known for its reliability, fuel efficiency, and outstanding performance. You’re looking for a reading of about 12. Page 2 This service manual has been written and published the same locations whenever possible. If some cylinders fire and not Gear shift not in neutral. Symptoms include engine stalling, hesitation, and difficulty starting. If the reading is low on one cylinder Jul 7, 2022 · Evinrude and Johnson outboard ignition systems explained. NOTICE 19. If your outboard motor will not throttle up, the issue may be as simple as a tangle. Check the center hub triggering magnet in the flywheel. Performing tests on ignition components requires that you have the proper equipment to do so. In this blog post, we’ll explore common problems associated with Mercury 2-stroke outboard engines and provide detailed, step-by-step solutions for fixing them While OEM outboard boat motor ignition parts are fair in quality, we offer an aftermarket brand of stator, power pack, switch box, trigger, timer base, coil, regulator, rectifier, wire harness, etc. Water Pumps. If you find any oil on that unit’s body, it means it surely has a crack on it. 2-1. You should have a reading of at least 150V or more at both terminals. This stator replaces the following P/N's: 398-5454A11, A15, A16, A30, A31, A32, A34, A35, A36, A64 and A66. Johnson/Evinrude 60° 6 Cylinder Optical Ignition (OIS 2000) Carbureted 1991-2006 Model Years Due to the differences in this ignition system, troubleshooting can be somewhat difficult if you are not familiar with the design. Contact our Parts Experts: 1-888-352-1312 | 1-239-367-0049 | Hablamos Español Contact Us. This is the part of an outboard engine that spends the most time in the water. When the outboard engine fails or refuses to run, most likely it happens because of an Nov 8, 2023 · However, just like with any other boat engine manufacturer, problems do arise. Check resistance from red to red/white. 256. His 115 Yamaha 2 stroke outboard would not start. Disconnect the yellow wires from the stator to the rectifier and retest. Apr 19, 2023 · Problem #1: Overheating. 4 Problem #4: Loss of power. <br /><br />Motor started up as usual took out on a slow cruise and 10 minutes into the ride at about 1/4 throttle the motor dies Service Note: If timing will not advance on only one cylinder, check wiring between Ignition Module and ECU. Replace the spark plugs if needed. It provides a visual representation of the electrical pathways within the ignition system, allowing you to easily identify and troubleshoot any issues. net, John will guide you through the outboard ignition parts that make up your ignition system. Nov 8, 2023 · Some of the more common problems are as follows (in no particular order): 1. Faulty Impeller. TROUBLESHOOTING THE CDI MODULE No Fire on Any Cylinder: 1. Some power packs also have a S. Disconnect the Mercury Outboard switch and reset, if the engine fires, replace the Mercury Outboard switch. They are using some sort of aggravating "page-turning" Flash application for the guide, but once you find your ignition system in the index, manually go to the page. May 30, 2023 · Mercury 2-stroke outboard motors are highly regarded in the boating world for their reliability, performance, and efficiency. Check the Crank Position Sensor. Check the ignition coil and spark plug wires for damage and replace them if needed. 25 EFI outboard motor pdf manual download. If your boat has a battery switch, make sure it’s set to the ON position. Check the multimeter display for a resistance reading within the specified range. Re: 2000 Johnson 90hp with Optical Ignition System. It is a very simple repair and now our boat runs almost perfectly Jun 27, 2012 · Troubleshooting Guide that covers Chrysler/Force, Johnson/Evinrude, Mariner, Mercury, Mercury/Force, Toast/Nissan, and Yamaha 2-Stroke with some 4-stroke. The main corrosion problem seems to be that the . In other outboards, coils are inside a unit without oil. Apr 8, 2021 · A discussion of outboard motor starting problems, some of the causes and quick solutions, aimed at non-mechanics. If your outboard motor isn’t running at its best, check the fuel vent on your portable tank to make sure it’s open. CDI electronics has been the leader in outboard marine Ignition technology since 1983, and their products are marketed under the name of "Quick Strike Sep 21, 2011 · Sep 21, 2011. However, like any mechanical device, they can occasionally encounter issues and require troubleshooting. The 3 wire unit incorporates a solenoid for the up mode, and direct wiring for the down mode. It should be approximately 80 on OEM stators, and 28-32 on CDI's. Thoroughly clean lapping compound from valve seat and valve face. Disconnect the black yellow kill wire and retest. 250. It is advisable to consult a professional in such cases. This chart assumes you have the adequate testing equipment to diagnose ignition problems. Check the ECU. Plus, if the battery fails to charge continuously and corrosion build-up around the stator’s surface, rest assured that the stator will become faulty! Jun 11, 2019 · 06-11-2019, 10:23 AM. Fuel Pressure Problems: This is one of the most common issues with the OptiMax 200. Starter Motor: In case the starter motor is at fault, you might have to consider a replacement. Never touch electrical components with wet hands. The problem can be caused by a faulty fuel pump, a clogged fuel filter, or a leaking fuel line. Gauge's work normally, just no crank. If the voltage is less than 9 1/2 volts during cranking there is a problem in the battery s or the Ignition switch Box. 5. Simply twist it open and monitor your engine for improvement. 75 hp no signal to the coil MERCURY/MARINER 75hp OUTBOARD. Debris such as fishing line, excessive seaweed, beer can rings, or nearly any other material can wrap around the propeller and its spindle. Aug 4, 2023 · Replace the spark plug if necessary. (speed limiting operator warning) function that limits the RPMs the engine is capable of attaining. Mar 23, 2024 · 17009a5 ignition key switch for mercury outboard motors 3 position offIgnition outboard Mercury outboard ignition switch wiring diagramMercury outboards: switch box install and stator repair. Photo courtesy of Attwood. 30 efi 25 efi jet. Remove Armature 2. If it doesn’t start with a half dozen pulls, wait 10 minutes and try again. The SLOW system will kill spark to one bank of cylinders Mar 28, 2023 · Therefore, you must detect the signs of a bad stator. If the engine has fire, replace the rectifier. 7. Nov 4, 2022 · Common Honda 4 Stroke Outboard Problems. . 1 Problem #1: Starting problems. Th 5 HP Outboard • Troubleshooting & Repair Manual Section 4 • Overhaul OVERHAUL Magnetron Ignition 1. If the outboard motor was submerged 7/7 STEP 5 –Attempt to start the engine 18. If, at any time, you see DC voltage on the kill wires, there is a problem with the Harness of Ignition switch. One of the most common problems with the Mercury 90HP 4-stroke outboard motor is overheating. This video provides troubleshooting information, including possible causes For the most recent information about CDI Electronics’ products, policies, and instructions please visit www. Aug 23, 2010. L. Ignition timing: Verify that the ignition timing is correctly set according to the manufacturer’s specifications. View online or download. These beep codes can be helpful in diagnosing problems and ensuring proper maintenance of the outboard engines. Apr 23, 2014 · Tohatsu/Nissan Troubleshooting 2 Stroke Carbureted Ignitions 96-103 4 Stroke Ignitions 103-105 TLDI 106-107 Yamaha Troubleshooting 2 Stroke Carbureted Ignitions 108-142 4 Stroke Ignition Through 60 HP 143-154 Appendix DVA (Peak Voltage) and Resistance Charts (Introduction) 155 Chrysler/Force DVA and Resistance Charts 156-157 CDI electronics: Use of Electronic Test Equipment and Ignition Troubleshooting Guide The electronic data in this Section has been largely supplied by CDI electronics, division of Rapair, Inc. Mariner Outboard Parts Lower Units Boat Propellers Ignition Impeller Key Leak Loss Lower Unit New Oil Jul 5, 2024 · Locate the CDI box on your outboard motor and disconnect all the wires connected to it. ignition switch’s “M” terminals if using remote start. If the outboard motor was running when it became submerged, there may be mechanical damage, such as bent connecting rods. Broken/Damaged Coil. CDI Electronics Outboard Ignition Troubleshooting Guide. Jul 8, 2020 · Here's a quick list of parts that have been replaced on the powerhead within the last 4 months leading up to the first sign of trouble for either regular maintenance or repair: - Spark plugs. Occasionally, initially turning the key to CRANK, I get nothing. Battery positive (+) connects to View and Download Mercury 75 service manual online. Tilt Trim Motors. Sometimes, after flooding, it will start and then die. wmv Basic ignition system Johnson/Evinrude DVA (Peak reading) and Resistance charts. 75 outboard motor pdf manual download. That motor should run on all 4 cylinders all the time. Diagnosis requires checking fuel pressure with a gauge and identifying the source of the problem. POWER TILT TRIM Electric Motor Differences – by Joe Reeves. View and Download Mercury 25 EFI service manual online. Here are CDI's troubleshooting pages for most ignition systems: CDI Ignition Troubleshooting Guide. Mercury 650 coil. 5 Problem #5: Stalling. Apr 18, 2021 · In this video I'll go over some of the electrical ignition issues you may run into with a rough running outboard motor. Check the fuel system step by step, from the tank to the motor. Jun 10, 2015 · See this video for information on making a DVA: https://youtu. M. In simple words, a melted coil can significantly offer a bad impact on the Johnson power pack’s functionality. Just did plugs, and coil (was cracked). Check the reading on the switch box terminal AND on the ignition coil terminal. The TROUBLESHOOTING GUIDE (961-0002) is a complete reference manual containing troubleshooting suggestions and reference data for most outboard ignitions, including Mercury, Tohatsu/Nissan, Johnson/Evinrude, Force, Chrysler, and Yamaha 2-stroke plus some 4-stroke. If the fuel pump isn't primed, the motor may turn over without starting. Jul 1, 2023 · Here are some common problems and their respective solutions: Trim Motor Failure: Replace the faulty trim motor with a new one that matches the specifications of your Mercury outboard motor. If the engine’s ignition has fire, the stop circuit has a fault. If the reading is now within spec – the pack is bad. To send voltage to your CDI unit (power pack or switchbox) to run your engine and to send voltage to your rectifier/regulator that will charge your battery. Jul 31, 2021 · This is how to troubleshoot your outboard's kill switch circuit. S. Most outboards won’t start if the motor is in gear. Valve seat width should be as shown (Figure 65B) The best means of testing Magnetron™ armatures is on the 3. To identify the issue, perform a thorough inspection of the fuel system, air filter, spark plugs, and ignition system components. Your stator creates voltage for two reasons. The wiring to the trim switch relay is independent of the ignition wiring but shares the same WW power feed. 2006 F150, with the below pictured ignition switch. Always be aware of moving mechanical parts, the surrounding area, and the position of your hands and body near the engine. Was it Dirty carbs? We diagnose & fix it. Hydraulic System Issues: Ensure the hydraulic fluid level is correct and refill if necessary. Users are unable to maintain a faster pace and can’t track at slower speeds. The coils of some mercury outboards are sealed inside a unit with oil. parts manufactured by CDI Electronics, which have redesigned their boat parts over the OEM counterparts and made them better. Outboard No-Start Check 5: Battery Testing. Check the DVA output on the Green wires from the switch box while connected to the ignition coils. Troubleshoot problems with your Johnson Evinrude outboard motor with links to forum discussions, application guides, repair manuals, and replacement parts for carburetors, fuel pumps, gearcase seals, head gaskets, ignition coils, pistons, points, powerpacks, recoils, starter motors, tilt trim motors, tilt trim O-rings, VROs and water pumps. W. I'll cover how to Diagnose timing and spark related issues that can Aug 21, 2023 · 1. It is critical to mix oil with fuel in a 2-stroke engine. Troubleshooting Guide that covers Chrysler/Force, Johnson/Evinrude, Mariner, Mercury, Mercury/Force, Tohatsu/Nissan, and Yamaha 2-Stroke with some 4-stroke. Connect the multimeter probes to the CDI box’s input and output terminals, making sure to match positive and negative. RkJQdWJsaXNoZXIy NTU1MzIx. Overheating Issues. If the engines now has fire, the kill circuit has a fault-possibly the keyswitch, harness or shift switch. YEAR: HP: CDI P/N: 174-5456-16. Contents hide. I recommend you get a OEM service manual and troubleshoot the motor's ign system. Includes DVA Explained, recommended Shop tools, testing with minimal equipment, voltage drop measurement, troubleshooting battery charging issues and many more! 7th edition guide. Aug 23, 2010 · Messages. O. Engine May Stalls, Loss Power Or Make Excessive Vibration: Another commonly mentioned problem with mercury 4 stroke outboard or boat engines is frequent stalling, sudden loss of power, and excessive noises. Understanding this chart:Example: Grn = Green Wht/Grn = White/Green Stripe Pk = Pink"Wire to wire Nov 15, 2019 · Broken or loose magnets on your flywheel will cause ignition issues so they are definitely worth checking. Examine the ignition switch and replace it if it does not function properly. Disconnect the mercury tilt switch and retest. There May 22, 2019 · POWER TILT and TRIM TROUBLESHOOTING. Fuel Problems. Bad Spark Plugs. However, like any mechanical device, it is not immune to issues. 2 volts is a half-charged battery. Jul 23, 2009 · Troubleshooting the stator No fire at all: 1. CDI cannot be held liable for injury or damage resulting from improper installation, abuse, neglect or misuse of this product. These would occasionally fail. Jun 14, 2023 · If your Yamaha 200 outboard engine isn’t producing a spark, follow these steps: Inspect the spark plug for wear or damage and replace it if necessary. This is how Evinrude outboard stator, timer base, flywheel magnets, coils, and power packs work. ENGINE MISSES AT HIGH RPM: 1. The information is excellent. Nov 27, 2017 · Wait about 10 minutes and try starting again. Malfunctioning Fuel Pump. 2 Problem #2: Overheating. - All fuel hoses and clamps. If your motor is overheating, you may notice a high-pitched alarm or a reduction in power. Overheating is a common problem faced by users of the Mercury 40 HP 4-Stroke. Apr 19, 2019 · How to diagnose, fix and replace a CDI or capacitor discharge unit shows you how to troubleshoot, fault find, diagnose no spark on your electronic ignition o Mar 28, 2023 · Symptom 1: Leakage of Oil or Cracks on the Body. Decreased Engine Speed. The most common signs of a bad stator in a Mercury outboard engine are problems with engine activation, lack of power, and misfiring. 0 ohms and 800-1100 ohms from the high tension lead to engine ground. Clean all battery connections and engine grounds. From what I can see on the engine and some parts lists it appears it has a "coil" in addition to the magneto spark energy from the flywheel (assumption, I have not pulled the rope-starter/cowling). The Yamaha outboard alarm system can fail just like any other system on your outboard. From the ignition switch "ON" position, the gray wire feeds back to the ECM -and is the power source for the ECM. Spark plug coil. Tangled Propeller. Skip to content. If you are a DIY Boat Owner, CDI is pleased to provide support for a nominal charge of $35 per 30 minutes of support, or $50 per incident — up to 2 hours of support time. 8. I have a 1996 Evinrude 9. If the engine turns over or cranks like it always has, then chances are you are looking at a fuel problem. Mercury Outboard Troubleshooting Forum Topics. Issues with the starter is a complaint that you may have with your Yamaha 115 outboard motor, with the engine not engaging correctly. Mariner Outboard Troubleshooting Forum Topics. Some 2-stroke Yamaha 40 outboards, particularly older models from the 1980s and 1990s, had a mechanism that injected oil into the fuel rather than requiring it to be pre-mixed. You should have a White wire on one terminal and a Blue wire on the other terminal. Troubleshooting the alarm system includes making sure the horn associated with the alarm works, making sure the warning light comes on and the horn sounds when the oil level drops below acceptable levels and ensuring the warning sounds if the engine overheats. OEM will read approximately 3500 ohms (CDI stators will read from 500-700 ohms). Save PDF. The following are the 5 most common problems with Yamaha 150 outboard engines to look out for: 1. Disconnect the Yellow wires from the stator to the rectifier and retest. If the engine binds when cranked, do not attempt to run the outboard motor until it has been repaired. Step by step guide to fix your boat motor when it won't start. I had just had the boat out of the water and did a water pump service, lower unit oil, and new plugs. Mercury Mariner ignition module diagrams, switch box replacement parts, and repair manuals. The k Nov 11, 2021 · In this video, we replace the faulty ignition switch on our boat for our Yamaha 704 system. Today with electronic ignition systems, it is fairly easy to troubleshoot a startup problem and should the spark plugs prove to be the culprit, a quick fix. If both the Blue and White wires are connected together, correct the wiring. Page 1 SERVICE MANUAL MODELS 40·50·55·60 With Serial Numbers United States 0G531301 and ABOVE Belgium . Issues with the shorting and overheating often turn the coil damaged, resulting in the power pack not working. A crack on that unit is also a sign of a bad coil. Ignition Troubleshooting Reference Chart for Outboard Motor Parts for OMC, Evinrude, and Johnson. OMC Ignition Troubleshooting Reference Chart. By addressing propeller issues, fuel system problems, ignition system malfunctions, air intake restrictions, and exhaust system blockages, you can Apr 12, 2023 · In this article, we will discuss the common problems associated with Mercury 40 hp 4-stroke engines, their causes, and solutions. Many anglers have pointed out issues where the engine speed decreases over time, and the motor comes to a stop. cdielectronics. Understanding this chart: Example: Grn = Green Wht/Grn = White/Green News. Our Technical Support Team is available 8:00 am – 5:00 pm CST at 1. - Fuel pump rebuild. If the reading is low on one cylinder Outboard Troubleshooting Tip 4: Check the Fuel. dq it kr py ix wg nt bl yz nb