FREE Returns. The needle on the multimeter should move when you touch the probes together. When the outboard engine fails or refuses to run, most likely it happens because of an Sep 25, 2009 · Thanks. 130v at 1500 b/w-b. elfa. In addition it works with Yamaha snowmobiles and personal Hold the plug wire about 1/4 inch from the powerhead, not over the spark plug. If the voltage is still low, then you'll need to replace your outboard's power packs. If the engine starts, use the choke to kill it and replace the kill switch. The CDI 511-9701 Battery CD Tester is highly recommended due to its ability to fire the Ignition systems up to 3000 RPM without the engine running. (Excludes Japanese Mariner models) Performing tests on ignition components requires that you have the proper equipment to do so. Stator Kit for Mercury 16 Amp 2 3 4 Cyl 40-125 HP 1987-99 398-818535A18. Jul 5, 2024 · Learning how to test outboard cdi box with multimeter is a straightforward process that can help diagnose potential issues. Mercury switch box wiring 3322986 (2 of 3) Cdi electronics® 114-4796Mercury outboard switch pack test, "working" Switch box for mercury mariner outboard 6 8 9. This is a 1974 Mercury 650e, Feb 3, 2023 · Step 1: Locate the CDI box And Remove. One day it was working fine, the next nothing. Mar 4, 2024 · Step 3: Set the Multimeter. Most Mercury Outboard Ignition systems use a red Wire and/or red/white stripe for the high speed charge coil, and blue and/or. M. The k Mar 19, 2016 · 1 - invest the 30'ish bucks in a manual and go through the ignition troubleshooting procedures - since you say that you are not "mechanical" when it comes to outboards it could get quite cumbersome and confusing trying to explain the numerous checks and tests that you need to complete. It is actually very simple and easy. 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. a peak reading voltmeter for CDI systems is needed (or a DVA adapter and regular meter)to check inputs and out puts of the CDI to make sure they meet spec. 78 ohms. Then the 3 connectsions on the left side are from the trigger, and the 3 connections from the right side go to the coil. And the ignition coil failure is the main cause of it. The cold test method is for testing a CDI system’s continuity. Hot and cold measurement of cdi box with a multimeter; Safety when using a multimeter on a cdi box; And so much more! Sep 17, 2023 · Switch box for mercury outboard 4 6 cylinder 50-150 hp 67-79 cdi 114Switch box for mercury mariner outboard 6 8 9. Place the positive probe of multimeter on the green and white striped terminal wire pin and the negative probe of the multimeter on the terminal pin for the red and yellow wire. #1. Our Mercury Outboard Switch Box are at the lowest prices and same day shipping! Sep 19, 2012 · With a Fluke Meter set on DC Voltage equipped with a DVA or Peak Reading Adapter, stator and pack output can be quickly checked. CDI Electronics manufactures many different test harnesses to aid. Clip off the ring terminals from the white wire on the ignition side (the side with 4 terminals), and the brown, white and black trigger wires. This Switchbox replaces these P/N's: 332-5524, 332-7778A1, 332-7778A3, 332-7778A5, 332-7778A6, 332-7778A9, and 332-7778A12. Ignition outboard works cdi pulser components Home made cdi for outboard. For more details watch CleanCarburetor Dec 7, 2016 · CDI Electronics | Outboard Motor Parts | Ignitions | Marine This little 7. To install and test a Mercury Outboard external wiring harness, the first step is to locate and remove the old wiring harness. Aug 22, 2018 · All Mercury Forums; Mercury Outboard Parts Forum; If this is your first visit, be sure to check out the FAQ by clicking the link above. 20V+ HS 180V +LS. Nov 23, 2017 · How to diagnose a no spark on an outboard motor Jan 30, 2019 · Quick Video on the evolution of Merc Inline Ignition Coils (1967-1988) and how to perform a resistance test. Does anyone know how to ohm test the switch box. (See attached photos) 2. But it's primary function is to store and convert power from the stator. 1. Occasiona Switch Boxes. HS = High Speed. 3 Different types discussed: 1967-1978, 1976-197 3 days ago · Trying to see how to test a cdi box with a multimeter? Super, you are in the right place! In this ToolsGaloreHQ. . 332-2986A21 Switch Box Assy $ 634. A good, strong spark means the air and fuel mixture in the cylinder will be ignited properly. Sep 1, 2020 CDI Electronics Receives Supplier of the Year Award from the NMDA; Jun 2, 2017 CDI Electronics and Balmar Select S. This switch box replaces these P/N's: 18-5881, 332-5772A1, 332-5772A2, 332-5772A3, 332-577A4 and 332-5772A5. If it happens pretty much regularly instead of occasionally, the engine will Jul 28, 2015 · Jul 28, 2015. Now, you can test the CDI box by touching the probes to the terminals on the box. Set the multimeter to ohms, then touch the negative side to a ground and the positive to the wire coming to the CDI. Set your multimeter to the “Ohms” setting. The part number is 332-4911 I think it is the A8. All checks are made with a peak reading volt meter. Dec 17, 2022 · Here are the steps to test a CDI box with a multimeter: Disconnect the negative terminal of the vehicle’s battery to ensure safety. Jul 7, 2022 · The CDI unit or ignition box is responsible for storing spark from the stator and transferring it to the ignition coil via signal from the trigger. This short video shows an outboard Force by Mercury Marine with the power pack replaced. Specialized harnesses for Johnson / Evinrude, Mercury Marine, and other brands are available to the service professional. Apr 9, 2018 · Mercury Switch Box CDI Power Pack 855713A3, 855713A4 114-5713, C117. Meter Test: 1. 00. Mercury Outboard Inline 4 New Stator & CDI Trigger Install - YouTube. The spark must occur at the precise moment the piston has fully May 19, 2011 · The first step is to do a Ohms test to see if the coil is good before going on to the visual internal ferrite core inspection. 5/s. Next. Watch for a spark and observe its character. Shop Mercury Outboard Switch Box at Wholesale Marine. Once I diagnosed a partial weak to eventually “no spark” condition i Switchbox installs can a bit intimidating given all of the wires and connections involved. In technical terms, reduced spark energy causes issues with the engine start-up. 9 10 15 20 25 hp 2strSwitch mercury outboard box mariner hp marine. The hierarchy of spark is like so:* The INCOMING Dec 29, 2023 · Check Details Mercury outboard switch box bench test. Disconnect the points wires from the ignition coils and connect a jumper wire to the negative side of the coils. 38 ohms and 0. If you're turning your key and the starter motor isn't cranking then you may have a faulty solenoid. Switch box for mercury outboard 4 6 cylinder 50-150 hp 67-79 cdi 114Outboard saltwater mariner 90hp key diagrams 115hp schematics ignition marine tilt Switch box for mercury mariner outboard 6 8 9. most common possibility if all inputs are in spec would be the kill switch ( man over board) is activated (grounded) Joshmason808. This can prevent one or multiple cylinders from receiving enough voltage or sparks, causing a rough start or run and misfiring. Check for broken or bare wires on the unit, stator and trigger. It takes 150+ volts supplied Oct 4, 2016 · News. I earn from qualifying purchases. Using the Fluke meter with the 511-9773 peak reading adapter (or CD-77), measure DVA voltage of the stator from the black/yellow wire to engine ground with everything connected. / blue= 180 + v. Use a jumper wire and short the orange (Salmon) wire to ground. Reconnect the red wire (that went to the old CD) to the rectifier battery terminal or tape off as it is no longer needed. wmv Basic ignition system. #1 · May 23, 2007. Grab the multimeter’s leads and join them together. $403. Locate the CDI Box and Remove. Disconnect the black/yellow kill wire AT THE PACK. Additionally, the tester can be used to test Mercury Outboard EFI injectors. 9 10 15 20 25 hp 2strMercury switch outboard wiring diagram box key motor test classic engine Mercury switch box mariner outboard hpMercury quicksilver outboard motor control box w/ tilt/trim switch 14. / each trigger wire +4+ v. Ignition coils: https://amzn. This chart assumes you have the adequate testing equipment to diagnose ignition problems. Remove the high tension lead from the original coil and distributor cap. With your ohm meter, measure the coil ground to the secondary (where the spark plug wire goes). Jun 6, 2014. 150V+. Replaced spark plugs, nothing. Water Pumps. CDI P/N: 114-5772. Your "test" seems to prove it is doing that at least to some degree. Osgood Company for RV and Upper Midwest Marine Sales Representation Mercury/Mariner DVA (Peak reading) and Resistance charts. 511-7900 Remote Starter Controls most Mercury engines from 1979 thru 2000. Jun 6, 2014 · New member. I indexed top dead center for each cylinder by removing the spark plus and using a dial indicator Apr 18, 2013 · Re: 1974 Mercury Thunderbolt 7. Start by locating the old wiring harness on the boat. Hi everyone new user here. I posted recently after rebuilding the ignition system of one of these phase maker 7. $5299. Chart B shows the more stable voltage and current reading on a regulated rectifier. Mar 26, 2021 · 1. See if it is around the 1KΩ or 1000Ω range. 9 10 15 20 25 hp 2str '97Tilt colis. Warning! This product is designed for installation by a professional marine mechanic. 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 May 30, 2013 · CDI’s Regulated Rectifiers is a direct replacement for Johnson/ Evinrude and applicable to many Mercury Marine outboard engines. The way these ignition system work more or less is that you have a magnet on the flywheel so as you start the outboard by using the pull start or turning the starter motor the flywheel starts to spin as a magnet in the flywheel passed into this pulser coil the magnet induces our current into that coil so a small current flows through the coil Jul 23, 2022 · The symptoms of the bad stator are usually similar to the below-mentioned and explained indications: 1. Clean all battery connections and engine grounds. Set your multimeter to continuity (or ohms) mode for the cold test. The test was designed to isolate the alternator from the ignition system so that the voltage must come from the start battery. If you see continuity, the switch has failed and needs to be replaced. Junior Member. Brand: Automotive Authority LLC. CDI P/N: 114-7778. Test can be performed while the Trigger is on the motor Merc V6 Models 150 HP, 175 HP & 200 HP ser # 5124981 to 5363918 ( IMAGE) Merc V6 Models 150 HP, 175 HP & 200 HP ser # 5363919 to 5464484 ( IMAGE) Merc V6 135 1985-88, 150 1979-88, 175 1980-88, 200 1979-88, 220 CARB 1986-88 ( IMAGE) WIRING DIAGRAMS ARE HERE FOR MANY MERCURY OUTBOARD MOTORS. Every wire is color coded to Check Out. While testing and probing at the end of the cable, it is recommended to try cranking your bike for a few seconds. Locate the CDI box. Connect the wire to the base of a load resistor. This box is connected with multi wires. May 12, 2020 · In this video I will walk you though all the steps involved in troubleshooting a CDI ignition system in a Mercuy outboard motor. Repeat this for each spark plug wire. 3. Most probably, a backdated outboard motor tends to face complications during the engine start-up. pulser1w/r-w/y. Strip May 25, 2018 · Cdi Switch Box for Mercury Marine Power Pack V-135 / V-150 /V-150 XR2 /XR4 /V-150 XR6 / V-175 / V-200/V-220 ; Cdi Switch Box for 322-7778 mercury 3 cylinder /6cyl /blackmax 175hp power pack ; Compatible with many models, please see the detailed description ; The CDI Switch box for Mercury Outboard Come w/Ground Wire Attached Jan 21, 2024 · Check Details 332-7778a 3 mercury mariner outboard switch box 75-200 hp 332-7778a 6. Mercury mariner 80's cdi outboard ignition part 2: switch box/power. 511-6996 Remote Starter Controls most Johnson/Evinrude engines from 1969 thru 2006. Edition ignition outboard practicalIgnition system troubleshooting Ignition outboard cdi module boats Nov 5, 2007 · Re: 60 HP Mercury/Tracker No Spark? If you use a OHM meter, first check the flywheel for screws to tell if the magnets a screw in or glued then peek up under the flywheel and see if you have a OEM stator it will be covered with plastic material either black or red in color or a CDI stator the winding will be exposed then goto the test for the stator on the engine and it tells where the red and Jun 10, 2015 · In this video I go through testing the CDI ignition on and outboard motor to diagnose any faults such as a no spark situation. Your original question was how to test the box, start with buying a DVA then disconnect the black/yellow lead from the box next test the inputs from the stator inputs red =25v + v. A two cycle engine fires each cylinder once per revolution. The ignition switch sends a signal to the solenoid when you turn your key allowing it to open; this allows voltage from your battery to pass through it to the starter motor. This switch box meets or exceeds OEM specifications. LS = Low speed. This box is black and located near the engine underneath the seat of the motorbike. test from the vessel. Mercury Outboard 2 Cylinder Switch Box, 4 - 20 HP. Check the resistance from each of the yellow wires to case ground, you should get a reading of about 56K (56,000) on one and a high reading on the other. Sep 5, 2016 · A Yamaha service manual for your motor will have the specs and how to test. So to bypass the kill switch take the News. This is how the CDI box looks now. This is an important step in the process as it allows for a clean installation of the new harness and ensures proper electrical connections. Two different t Hey guys! I have a fairly straight forward diagnosing process for diagnosing the no spark on these switch box years of Mercury. A faulty or failing switchbox can cause one or more symptoms. $282. Notes: (a) = Blue to blue/white may read 600 W for some Rapair/CDI Electronic stators. Switch boxes on Merc's (unlike the powerpacks on OMC's) are not overly prone to failure - at least at nowhere near Aug 6, 2021 · About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright Sep 25, 2020 · How to test a coil on an outboard engine. May 23, 2007 · 262 posts · Joined 2001. Check Details. | Search this page. 99 Mercury cdi box köpMercury marine v-200 hp xri (efi) detonation controller / temperature. OE#: 339-6222A10, 332-5772A1, 332-7552A2, 332-7552A3, 3395287. It came off a 40 hp mercury marine serial number 5367818. and each output should be 150 volt. Jul 11, 2015 · I have done this test on my 94' Mercury 60 hp motor. com blog, we will show you: Symptoms of a defective CDI box. The lack of a spark to ignite the fuel mixture, which results in the engine not starting, is a common sign of a bad trigger. If spark is restored then the box that WAS sparking has a bad Bias circuit and is blocking spark on the other box. 9 10 15 20 25 hp 2str '97 332-7778a1 7778a3 mercury mariner force outboard switch box 75-200 hpMercury inline 6 coil/trigger/switchbox test no spark test. Mar 7, 2017 · SUBSCRIBE! This is how to diagnose and replace a bad outboard power pack. com. This setting allows you to measure the resistance of a circuit. You really need to get one if working on your motor yourself. 4. Quickly determined that there was no spark on either plug. Primary resistance should be less than 1 ohm, about 0. They seem to be one of the mo Smaller outboards have a switch on the tiller handle with a wire running to the CDI, which is basically a ground for the test. 99. The multimeter reading you get will not be a steady reading. That is all I know about the motor I just got it. Jun 25, 2012 · I searched the forums here and found the issue with my power pack. Need some motor help. Chart A shows voltage and current reading of a standard rectifier. Installs with a easy direct plug & play application. About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright Select the resistance scale on the multimeter. Boat Stator, Mercury Marine Outboard, 398-5704A 7, 18-5865. Connect a spark gap tester to the spark plug wires and check for fire on all cylinders. You can check for output on the switchbox, which should be the same as the higher stator voltage. Hey guys, I am having an issue that Im starting to think could be ignition related and would like to know how to test a CDM module (coil pack) on my 2002 Mercury 75hp. This is one way to bench test a switch box and you also can do this on the outboard motor Apr 29, 2020 · Buy JETUNIT 339-7452A19 Switch Box CDI Power Pack for Mercury Outboard 18-5777 114-7452K 1 339-7452A1 7452A7 7452A15 7452A18 6,8,9. Test the load resistor's positive and negative terminals with the positive and negative terminals of a multimeter. Then the trigger voltage should be 2-10VDC. 8 33 ratings. 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. Tested kill switch and it was fine. Crank the engine and carefully tap the jumper to engine ground, if the coil fires TROUBLESHOOTING THE CDI MODULE No Fire on Any Cylinder: 1. at 1500 7v. - - - - - - - - - - - -Due to factors beyond the control of FixItSam, it cannot guarantee against unauthorized mod Apr 17, 2022 · Once the wires are in place, you can turn on the multimeter by turning the knob on the side. 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 hp Mercury was priced right for what the owner thought was a fuel issue. Check the voltage on the red and white Ignition wires at the CD Unit. Your outboard switchbox sends voltage to your ignition coils or CDM's to provide a good spark. First half of video is how to replace a power pack and the second half is how to di Jul 31, 2021 · This is how to troubleshoot your outboard's kill switch circuit. May 1, 2009 · Re: mercury ignition switch box. In the case of a two-stroke motor, the fuel and air mixture also contains a small amount of oil to provide lubrication for the engine. Remote starter harnesses are ideal for isolating the engine under. You should get a reading of about 45K (45,000) on one and a high reading on the other. May 1, 2017. to/3OfW CDI Electronics | Outboard Motor Parts | Ignitions | Marine Nov 21, 2014 · The program is truly a plug-and-play design as it automatically senses what make and model and displays the information and testing procedures unique to that engine. It can be used to test the CD module, distributor cap, Ignition coil and plug wires. The switchbox (s)are energized by the stator under the flywheel. 9,10,15,20,25,35 HP 2-Stroke 1980-1996: Electronic Ignition - Amazon. Mercury Outboard Motor Stator and Switchbox output check with DVA Feb 15, 2004 · Check stator voltage (200-300VDC on the blue lead and 29-90VDC on the red lead) cranking the engine. 5 hp , switch box test , wiring? Laddies said: Your engine is a ground off engine and will not have spark with the orange wire grounded. Replaced switchbox/power pack - still no spark. 511-7800 Remote Starter Controls most Mercury engines from 1970 thru 1978. Disconnect the mercury tilt switch and retest. The orange wire from the switchbox fed to the yellow wire from the stator screw terminal, the wire for the kill switch was attached here. Disconnect the Mercury Outboard switch and reset, if the engine fires, replace the Mercury Outboard switch. Turn the motor over one time only, either with the recoil starter or the electrical starter. in troubleshooting most outboard engine brands. I don't know if this procedure will work the same with your engine. It is usually found near the engine or under the seat of the vehicle. I have a 1999 25 HP Mercury manual start outboard. 2. The needle should move to the right and stay in the green area. Pull the starter and you should see 500 volts on the voltmeter. This test will quickly diagnose if you have a defective Check Details Check Details. 2 - take it to a shop and have the troubleshooting done by Aug 11, 2011 · Slide Anchor Box Anchors Shop Mercury & Mariner Outboards Mercury 150hp stator test-- help-- !!!!! CDI has very good instructions on testing and diagnosing Sep 11, 2016 · Video shows how to check or troubleshoot the trigger or CDM module on an ignition system that came off an outboard Mercury Force 40 HP motor. Nov 1, 2023 · Switch box for mercury mariner outboard 6 8 9. Following the steps outlined earlier, such as checking for continuity and resistance, you can determine if your CDI box is functioning properly. com FREE DELIVERY possible on eligible purchases Feb 27, 2024 · This is effectively a gate. to the spark plugs at just the right time. This involves testing the resistance of the coils and leads as Feb 22, 2016 · Cadet. Mercury Outboard Home Page. Flywheel. Not so hard after all. CDI Electronics cannot be held liable for injury or damage resulting from improper installation, abuse, neglect, or Jul 15, 2023 · If interested in purchasing this product, visit our Amazon affiliate link below. CDI cannot be held liable for injury or damage resulting from improper installation, abuse, neglect or misuse of this product. This can be a sign that the ignition trigger is not sending the signal For more details watch CleanCarburetor movie How to test power pack. You have to press the probe that is at the cable’s end. blue/white stripe for the low speed change coil. Just want to show you guys that its not impossible to repair a CDI box, i have found the problem on it whit the cables and some of the components,but it took 1 hour to get down there and im not finished yet from the other side the electric parts can be found on www. Check the ignition coil secondary resistance An outboard’s ignition system is responsible for producing an electrical spark to ignite the mixture of fuel and air within the cylinder (s). Apr 23, 2014 · 511-5207A 1 CDM Test Harness Test the CDM Module DVA on the engine and isolate the kill circuit. 511-9764 Apr 21, 2023 · Check Details Mercury mariner switch box cdi 15 20 25 hp 18495 a9 a14 a16 a17 a20 a21. Mercury Outboard CDI CD Ignition, Switch Box #114-6222. resistance is 330 ohms. Outboard power packs supply high voltage power to the power coils of the outboard's ignition. pulser 2 w/b-w/g. Thank you, guys. To start viewing messages, select the forum that you want to visit from the selection below. Mercury Mariner ignition module diagrams, switch box replacement parts, and repair manuals. Mercury outboard 50hp switch box cdi 18-5775 332-7778a3 7778a12 3/6cylMercury outboard 50hp switch box cdi 18-5775 332-7778a3 7778a12 3/6cyl Mercury switch box wiring 3322986 (2 of 3)Mercury outboard start even when kill switch is activated or kill. If your boat won't start and has no spark the ignition kill switch circuit may be bad. The first step of how to test the CDI box with a multimeter is to locate the CDI box in the motorcycle. Understanding this chart: Example: Grn = Green Wht/Grn = White/Green Sierra 18-5791 Switch Box. My motor ran the same without the two yellow leads hooked up to the voltage regulator/rectifier. If the stator and flywheel are still on the engine, connect the positive side of your voltmeter to the green stator wire, and the negative to engine ground. Aftermarket switch box for mercury motors. Sep 8, 2010 · 1. If some cylinders fire and not Jan 3, 2024 · Mercury Mariner 80's CDI outboard ignition Part 2: switch box/power. Aug 11, 2007 · The switchbox is one of those items that is tested by proving "nothing else is wrong". Jan 29, 2019 · This video demonstrates how to perform a basic test on a mercury outboard Inline 6 Trigger 1979-1988. Add to Cart. If so then go on to the visual Nov 11, 2019 · How a 2 stroke outboard ignition system works Bench Test Diode plate check: Test the forward diodes between the two yellow wires and the red wire. If the ignition works properly, replace the mercury switch. Find the model number of your CDI/ power pack 2. Tilt Trim Motors. Jul 18, 2022 · This is part 1 of a series of videos I am putting together on how to diagnose and repair a small 2 stroke mercury outboard which has "no spark". A digital multimeter will produce a beeping sound when you do this, which confirms continuity. It may be cutting in and out after half throttle that I am noticing, originally thought it was fuel related but I have done everything there is to do on that In this video im explaining how the mercury/mariner cdi powerpack / switchbox / etc works in lay mans terms. Sep 9, 2013 · Re: Mercury Outboard Switch Box Failures. Essentially a remake of the Trigger Testing without uninstalling the distributor which can be a pain. cdi out 95v cranking loaded. Mercury 200 efi fuel pump problemsSell 20hp 2003 mercury outboard cdi box in canada, canada, for us $149. Mar 28, 2023 · Symptom 1: No Spark. From what I understand I have a CDI ignition system, it's got the switch box (which I think Mercury call the Thunderbolt or Thundeerbox or something like that), the 4 top connections are from the stator. May 1, 2017 · 7. Go here Jul 23, 2022 · Symptom 1: Engine Not-starting. Troubleshooting tips: Mercury Mariner switchbox problems, Mercury switch box replacement, troubleshoot Mariner switchboxes, Mercury Mariner ignition components. Outboard Motor Parts for Mercury Outboard / Mariner CDI CD Ignition, Switch Box #114-6222. After clamping your multimeter you have to test yellow and pink wires in turn. When a spark test fails on one side of the motor, disconnect the Bias wire and retest. You may have to register before you can post: click the register link above to proceed. MEDS works with most Honda, Evinrude, Yamaha, Suzuki, Mercury, MerCruisers, and many other low-emission gasoline engines. IF, these are CDI boxes it is allowed to replace only the one box. Osgood Company for RV and Upper Midwest Marine Sales Representation Sep 20, 2017 · Replac Mercury Power Pack, for mercury cdi 332-5772a7,mercury outboard switch box 332-5772a1, mercury switch box 332-5772, 85 mercy 50hp, switchbox mercury classic 40 hp 45hp 50hp,1989 mercury 4 cyl switch box，115 merc cdi switch box for 2 stroke 4 cylinder Mercury motor，Solved spark problems Nov 30, 2023 · Why your mercury outboard motor stopped working Mercury outboard switch box bench test Mercury outboard. gy ox hq fm fj vp nx ep os jn