Re-test with the rectifier disconnected from the stator, if the stator then tests all good, re-test for spark, if you now have good spark then replace the rectifier. 2. If you lose spark on all 4 and the black/yellow kill wire is disconnected from the switch box, either the capacitor in the box is shorted or the stator Jul 27, 2022 · This is part 2 of diagnosing a 2-stroke Mercury 15hp outboard. Especially on older outboard motors, checking the ignition system for spark is a common procedure when the engine will not start or if it runs poorly. Plan on doing a spark test and then a compression test. (Note the direction of the spark plug wire). I took them off to check ohms and results were good. Low oil levels can trigger safety features that prevent the engine from starting. Next, locate the engine’s ignition circuit. 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. May 2, 2024 · 11. Jan 31, 2013 · Sep 10, 2004. parts manufactured by CDI Electronics, which have redesigned their boat parts over the OEM counterparts and made them better. Disconnect the old CDM Module and remove the high tension coil wire from the spark plug. Check Engine Oil Level: Verify that the engine oil level is sufficient. 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 The three main signs of a bad switch are that 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 completely shuts off instantly when it is running. C. If the ignition works properly, replace the mercury switch. 0 ohms, from the primary (spark plug lead) to - should be 800 - 1100 ohms. Jul 23, 2022 · Symptom 1: Trouble Starting. $88. May 19, 2010 · May 18, 2010. Ignition Coils get their voltage from the Switchbox. all voltage tests on the Ignition to the coil should be done with the CDI 511 Just give us a call Monday through Friday from 8:30 AM until 4:30 PM EST at (877) 388-2628. 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. They charge your vessel's battery (s). #2. com. May 16, 2013 · Purchasing specialized testing equipment to fix your own outboard motor is expensive. Your outboard stator is the "powerhouse" of your outboards ignition system. See the detailed test specs for specific information. Once the old key switch is disconnected, it’s time to Mercury Outboard 6 Cylinder with ADI Ignition : No fire on the 1,3,5 or 2,4,6: Swap red and red/white wires, also blue with blue/white wires. They say it is best to use a dva meter and check voltages. If so, replace the coil. 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. 177 Fulford Dr. Mar 10, 2017 · SUBSCRIBE! This is how to diagnose and replace a bad outboard coil pack. If your boat is having trouble starting, it could be due to a defective ignition sensor. I have an ignition coil test tool that I made for my outboard. Two different t Technician. Troubleshooting Mercury Outboard Battery CD ignitions. This is a perfect tool kit for the mobile service department. Summary of Contents for Mercury 30. A CD Tester can be used to test the CD module, distributor cap, rotor button and spark plug wires on the engine. 5-6. 4-6 Hold the plug wire about 1/4 inch from the powerhead, not over the spark plug. My key was sticking and turning backwards. This can be a sign that the ignition trigger is not sending the signal 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". 0 ohms and 800-1100 ohms from the high tension lead to engine ground. blue/white stripe for the low speed change coil. The meter should move to the right to near "0". Turns out, it is a 1971, so I am not sure what is No Fire At All: Disconnect the black/yellow kill wires AT THE PACK and retest. spark is eh. Mercury SeaPro™ outboards are built to handle the heavy-duty needs of commercial boating applications. A faulty or failing stator can cause one or more symptoms. Select resistance range setting (I use x100) and connect the ends of the probes into the meter and touch the ends of the probes together. 64. Outboard Ignition Coils and Spark Plug Wires (HT Leads) This video looks at outboard ignition coils and HT leads or spark plug wires. A. Hello, you can test a bad coil by swapping primary leads to another cylinder to find spark, or using an ohm meter on coils + and - resistance should be . Jul 5, 2018 · This short video shows an outboard Force by Mercury Marine with the power pack replaced. In the manual, it says to test the stator by measuring the resistance "between yellow stator wire and 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. Page 1 Service Manual Outline Important Section 1 - Important Information Information A - Specifications B - Maintenance C - General Information D - Outboard Installation Electrical Section 2 - Electrical A - Ignition B - Charging & Starting System C - Timing, Synchronizing & Adjusting Fuel System D - Wiring 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. If the problem moves to the other set of cylinders, the Stator is at fault. This may include electrical connections, ignition wires, and other components. CDM's are essentially ignition coils with built-in switchboxes. Connect the yellow wire to the accessory terminal of the ignition switch. CDI Electronics will return the part to you via UPS. Connect the yellow/red stripe wire to the starter solenoid. May 18, 2009 · 12,218. Joined Apr 22, 2009 Test here to be May 24, 2018 · Headed up to northern Michigan where the motor is. Connect a spark gap tester to the spark plug wires and check for fire on all cylinders. The wiring diagram itself is quite simple and straightforward. Connect a multimeter to each end of the plug wire, then set it to ohms and hold the wire taut and straight. Disconnect the yellow wires from the stator to the rectifier and retest. Tilt Trim Motors. 423. 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 This chart assumes you have the adequate testing equipment to diagnose ignition problems. 2-1. 3. #1. 13. Your outboard's ignition coils or CDMs (Capacitor Discharge Modules) provide a high voltage pulse to your Spark Plugs. (252) 504-3355. Th Oct 17, 2015 · Maintenance on mercury Optimax 200HP This video shows how to test sparkplugs for fire and replace a bad ignition coil. Check the voltage on the red and white Ignition wires at the CD Unit. Some Mercury Outboard engines won’t start if the gear shift is in gear. A job on the water can be unpredictable, but a SeaPro outboard clocks in on time every day, eager to work as hard as you do, for as long as you do. Simply made, Sep 18, 2022 · Mercury 305 Cid Service Manual Pdf Manualslib. cannot use a Black or Blue ignition coil. Mercruiser Thunderbolt V8 Ignition Sensor Tune Up Kit Cap Rotor Replaces 87 892150q02 Bhmarine Com. Additionally, the tester can be used to test Mercury Outboard EFI injectors. Check to see if there are any noticeable cracks. If the engine’s ignition fires now, the kill circuit has a fault-possibly the keyswitch, harness or shift switch. Watch for a spark and observe its character. Boat has ran fine all last summer and has ran few times this year. Most Mercury Outboard Ignition systems use a red Wire and/or red/white stripe for the high speed charge coil, and blue and/or: blue/white stripe for the low speed change coil. A good, strong spark means the air and fuel mixture in the cylinder will be ignited properly. crazyclam Cadet. Jul 28, 2015. #4. Mercury Kiekhaefer Thunderbolt Ignition Medallion 9 5 L X 25 W Sep 8, 2009 · Re: Mercury 1976 200 20hp ignition. Most Mercury Outboard Stators perform two important functions. net. Been running some tests and doing some research on my CDM starter coils. 5 I bought a few weeks ago. Understanding this chart: Example: Grn = Green Wht/Grn = White/Green If you already checked the spark plugs on your outboard, test the plug wires to make sure they’re also working properly. Check the center hub triggering magnet in the flywheel. B. 4832 CUSTOMER SERVICE 1. May 19, 2011 · You may snap the fragile Ferrite core inside. Knowing how to read and interpret this diagram can be a time-saving tool for any car owner. Jul 25, 2008 · Sometimes a bad rectifier leavers a magnetic field within the stator that interferes with the field/current/voltage produces by the ignition windings, causing an ignition failure. Apr 14, 2020 · 27. If your boat won't start and has no spark the ignition kill switch circuit may be bad. Check the ignition coil secondary resistance how to fix you boat ignition. Di electric grease is good. Harkers Island, NC 28531. Year: HP: Trigger Cranking Min. - - - - - - - - - - - -Due to factors beyond the control of FixItSam, it cannot guarantee against unauthorized mod Jul 31, 2021 · This is how to troubleshoot your outboard's kill switch circuit. com Testing Outboards with Minimal Test Equipment. Mercury Outboard Ignition Troubleshooting Reference Chart. Also a little bonus footage of a nice James river blue catfish caught b Aug 11, 2021 · Super quick vid on how to properly test an ADI stator using and Ohm meter. Primary resistance should be less than 1 ohm, about 0. #7. cdielectronics. I've got no spark on either cylinder, so am beginning to test the ignition system. Retest. Jul 28, 2015 · Contributing Member. The spark must occur at the precise moment the piston has fully 1. The k DIAGNOSTIC TOOL KITS. 2. Disconnect rectifier and retest. Sep 25, 2009. Use the link below to access the Parts Catalog. Is the Stator, Trigger, Switch Mercury Outboard Parts. CDI P/N: 117-6921 Ignition Pack 2 Cyl. DVA Ignition To Coil Cranking Min. They seem to be one of the mo NOTE: This test can be performed using the test harness (P/N 84-825207A2). 5Hp with known electrical issues. Select the resistance scale on the multimeter. I earn from qualifying purchases. Check the ignition coils as follows: Check resistance from + to – terminal reading should be 0. Mercury And Mercruiser Thunderbolt Ignition Testing Info The Penn S Old Outboards. Contact CDI Electronics Directly for Return Materiel Authorization. DVA 72-74: 4-5\20 Disconnect the Mercury Outboard switch and reset, if the engine fires, replace the Mercury Outboard switch. Apr 23, 2009 · Got A Fuse Tester No Power To Ignition Or Fuses Or Tilt forgot to say 1991 mercury 75 hp outboard . As of now it does not stap the engine. Easy to follow how to replace your boats ignition. Often a DIY mechanic can fabricate his own special tools making troubleshooting a lot easier on the budget. be/juhri_NxQcQIn this video I go through testing the CDI ignition on and outboard motor to diag Outboard Engine DVA CHARTS Chrysler/Force Johnson/Evinrude OMC Sea Drive Mercury Yamaha CDI Part # 961-0003 Rev Q 2/8/2012 TECH SUPPORT 1. There is no test for the box you test the rest of the system and if it's OK then the box is bad, heres the OMM test for the Find the right parts to fit your Mercury® or MerCruiser® engine with the online Mercury Parts Catalog. 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. I got a Seloc service manual, and its great but I am stuck up on the testing of the stator. Troubleshooting Mercury Outboard Alternator Driven Ignition. The trigger sends a signal to dump that charge into the ignition coil. . Order the correct Coils or CDMs for your motor. If no visible cracks are noticed then check to see if the area where the two ferrite parts meet are loose. The charts on this page provide specs for testing your Johnson Evinrude outboard ignition components. Or get a meter with ohms. 0 May 25, 2018. Sep 9, 2013 · Re: Mercury Outboard Switch Box Failures The O/B ignition switch is a double pole switch, one side handling the 12V circuit, the other the simple open/close of the 'ground-to-kill' ignition. You can search by engine model or serial number to see detailed engine diagrams and part numbers. While it's possible a component can be within specs and still be faulty, any You should have a reading of at least 150V or more at both places. to/3OfW May 19, 2021 · See how to test the spark plugs on your outboard in this video from boats. Flywheel. These units require a minimum of 9 1/2 volts at cranking and a maximum of 16 volts at wide open throttle. 3) 4 cyl 76 & Up switch box, charge coils are measured between Jul 15, 2023 · If interested in purchasing this product, visit our Amazon affiliate link below. Gently peel back the rubber protector and take it off of the ignition coil. If the engine fires normally, replace the rectifier. May 29, 2018 · Step #1: Verify Warning Horn Functionality (test it). WHAT CAN PREMIER REPAIR SERVICE DO FOR YOU? Improve performance by having us re-calibrate your outboard EFI/EMM/ECU module(s). 7. 8hp, 2cyl outboard. This can prevent one or multiple cylinders from receiving enough voltage or sparks, causing a rough start or run and misfiring. 38 ohms and 0. Jan 31, 2013. All Engines. • Easy Parts Find! • Plaintext search. Notes: Be sure Switch and Coil are properly gro Mercury/Mariner DVA (Peak reading) and Resistance charts. The meter should read 0 ohms or close to it. Re: Testing 45hp Mercury COILS/POWERPACK with Meter. And that is a pretty common coil. Intermittent Firing: This problem can be very hard to isolate. Unbolt and remove the old CDM Module. If the reading is now good, the ignition coil is likely bad. is 339 5288 and the + to - terminal should be less than 1 ohm. 7L Engines w/ Delco Ignition - 43-735791. Start by disconnecting the black/yellow wire from the kill switches at the box to see if that helps. While it's possible a component can be within specs and still be faulty, any component found not to be within specs should be replaced. The owner wants it fixed and asked me to diagnose the problem and fix it. Launch Parts Catalog. This could present itself in various ways, such as hard starts, stalling out after starting, or difficulties turning the engine over. A significant difference in the readings can help pinpoint a problem Performing tests on ignition components requires that you have the proper equipment to do so. Applies to Mercury Outboard Distributor ignitions. Mar 30, 2020 · Testing Coil Pack on Evinrude, Johnson or OMC outboard. 8. It amounts to testing the resistances between different trigger leads (for the trigger Oct 10, 2023 · 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. Jun 11, 2020 · Ignition troubleshooting Mercury 40 horsepower and 30 horsepower outboard engines. 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. Mercury Outboard Peak Voltage Adapter and Resistance Chart. Do Not connect the test harness plug to the stator/trigger engine wire harness. And be sure to ask about our Captain’s Club Rewards program for additional savings the next time you shop at Wholesale Marine! Upgrade your Mercury outboard ignition systems for reliable engine starts and efficient operation. Jul 7, 2022 · Evinrude and Johnson outboard ignition systems explained. Repair obsolete and highly unique parts. One of the most common symptoms of a bad ignition sensor on a Mercruiser is trouble starting. Aug 14, 2018 · Hey guys! I have a fairly straight forward diagnosing process for diagnosing the no spark on these switch box years of Mercury. 866. Connect the black wire to a suitable ground point on the engine. ) At first glance, magneto Switch Boxes. If the dark grey ferrite core is Aug 23, 2008 · Experience: 26 Years in Marine trade/ marine college/onan/RV appliance school. LS = Low speed. First, locate the old key switch and disconnect any wiring connected to it. Apr 7, 2021 · Hello - I have a 2003 Mercury 125 HP outboard. 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! 5. Water Pumps. 150V+. The most common signs of a bad stator in a Mercury outboard engine are problems with engine activation, lack of power, and misfiring. The ignition systems in antique outboards are usually magneto systems, as opposed to battery, points, and coil systems. There should be no connection from the – terminal to engine ground. (If you don’t remember how battery, points, and coil ignition systems work, please go back and read Parts 1 and 2 of this article series. An outboard’s ignition system is responsible for producing an electrical spark to ignite the mixture of fuel and air within the cylinder (s). CDI Electronics has packaged all of the necessary tools for troubleshooting the outboard engine electrical system in one handy toolbox! Our tool kits include multimeters, DVA adapters, spark testers, and other related test tools for the service professional. This is the second installment of our three-part series covering the ignition s Sep 25, 2020 · How to test a coil on an outboard engine. 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. This will be t 1) Most Mercury ignition systems use a red wire and/or red/white stripe for the high speed charge coil, and blue and/or blue/white stripe for the low speed charge coil. May 18, 2009. Step #3: Install LED Light (parallel) with warning horn. 20. Sep 25, 2009 · Mar 25, 2004. Mar 28, 2023 · Therefore, you must detect the signs of a bad stator. Mercury Outboard; Suzuki Outboard Parts. 4. 1. Mercury Mariner ignition module diagrams, switch box replacement parts, and repair manuals. I am kind of new to this outboard thing, so bear with me. TESTING THUNDERBOLT IV HEI IGNITION SYSTEM - Frequently Asked Questions - eBasicPower. CDI will repair your ignition component, then test the part to make sure it is performing at an optimal level. Thanks. (a) Some units use White/Orange stripe to White/Yellow and White/Red to White/Green. Feb 23, 2020 · Quick vid on how to test your switchbox and ignition coil. If the reading is low on one cylinder, disconnect the green wire from the ignition coil for that cylinder and reconnect it to a load resistor. 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. Over sufficient time mineral accumulation from water intrusion and evaporation can cause an intermittent 'bridge' between the two switches. Messages. You need ohms scale on your meter to check stat and trigger by the ohms values. Repeat this for each spark plug wire. This is how Evinrude outboard stator, timer base, flywheel magnets, coils, and power packs work. A good inductive tachometer (The Fluke 88 is highly recommended) can be used to compare the RPM on all cylinders up through WOT (Wide open throttle). 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 completely shuts off instantly when it is running. Verified. Stator generates electricity which is stored in a large capacitor in the switchbox. Sierra 18-5186 Ignition Coil Sierra 18-5186 Ignition Coil is a replacement part for use on Mercury, Chrysler and Force Outboard engines. Troubleshooting tips: Mercury Mariner switchbox problems, Mercury switch box replacement, troubleshoot Mariner switchboxes, Mercury Mariner ignition components. Blue/White and Red/White should read 5. DVA: Chg. If not sure how to accomplish these connections, I would suggest enlisting the hands-on expertise of a qualified technician. Apr 14, 2020. First half of video is how to replace a coil pack and the second half is how to diag Tricks to Testing with Minimal Test Equipment. These have a 5 pin connector for the ignition coil. Mar 30, 2017 · Hi all. Free Outboard Wiring Diagrams Manuals Net. It was purchased as a spare /parts motor for the 1974 Merc 7. If you're turning your key and the starter motor isn't cranking then you may have a faulty solenoid. Aug 10, 2020 · Please subscribe to support me and encourage me to create more videos. Mar 29, 2021 · This 45 hp Mercury lost spark on all four cylinders. The motor has a kill button and I understand from these forums that it is normally grounded and breaks the circuit when pushed, unlike most kill buttons. I've got a 1983 Mercury 9. • Just type what you are looking for. Connect the purple wire to the choke mechanism. 78 ohms. Basic Mercury Outboard Schematics. Commercial Outboards. 76 & Up. So to use your meter, you will probably need a dva adapter, and go the voltage rout. Turn the motor over one time only, either with the recoil starter or the electrical starter. Mercury - Distributor Gear - Fits MCM 3. Ignition coils have a primary and secondary coil inside them that steps up to the voltage needed to make a spark. This chart assumes you have the adequate testing equipment to diagnose ignition problems. Coil no. If you have multiple coils, you have ADI Ignition. Scott. (Excludes Japanese Mariner models) Performing tests on ignition components requires that you have the proper equipment to do so. After identifying the parts you need, contact your Mercury Authorized Dealer for assistance or to place an order. With those three symptoms telling you that you have a bad ignition switch, here are all the things that you Mercury DVA (Peak Reading) Voltage and Resistance Chart HP Year Serial# Ignition Part Number Stator Trigger Read Ohms DVA Low SpdHigh Spd High Spd Low Spd High Spd Read Ohms DVA 4 1 CYL 1972-1975 3296137-A855096 336-4516 Green to Engine Ground (DVA only) 2100-2300 (a) 170-190 (b) 180-400V Points Brown & White N/A N/A 4-20 2 CYL 1972-1989 Jun 10, 2015 · See this video for information on making a DVA: https://youtu. Mohat Rev. This video provides troubleshooting information, including possible causes Testing the ignition coil and spark plug wires on a Mercury 225 Proxs Optimax outboard. ****** Mercury Outboard Cranking Voltage Chart *****. Disconnect the mercury tilt switch and retest. There are two main types of ignition: inductive and CDI. NOTE: This unit replaces P/N’s: Replaces: 6G9-85540-20-00, 6G9 Connect one wire from the kill switch to the “IGN” terminal on the ignition switch. Lots of work went into this one due to various failed incorrect ignition components and ALL of 20V+ HS 180V +LS. Re: Trigger and stator - difference and how to test. 3 & 6 Cylinder. Do not return to the Dealer or Distributor where the part was purchased. 800. They provide voltage to your switchbox or CDM's. CAPACITOR DISCHARGE MODULE Circuit Test Connect Negative (–) Meter Lead To: Connect Positive (+) Meter Lead To: Ohms Scale Results: Stop Diode Forward Bias Green (D)/ or Green test harness OutboardIgnitionPart3 W. This wire will carry the kill switch signal to the engine’s ignition circuit. Add to Wish List. $22. the plug wire to ground should be 900 to 1200 ohms. Actually, "better" is Nov 22, 2019 · A video on how to diagnose and replace a bad switch box for any older outboard motor. Since you have no spark (make sure this is the case by using a spark tester or someother method) you will need to test the trigger, stator, and switchbox. Coil Cranking Min. 12,218. All Sierra aftermarket engine parts are manufactured to meet or exceed OEM requirements. Step #2: REPLACE Warning Horn if it does not function. This circuit is usually located near the spark plug or the ignition coil. No it should not as the trigger contains 2 seperate windings and if 1 goes bad you would lose spark on 2 cyls. 2 - 1. Notes: (a) = Blue to blue/white may read 600 W for some Rapair/CDI Electronic stators. Mercury - Distributor Gear - Fits GM 4 Cyl Engines w/ Delco EST Ignition - 43-811642. Ignition coils: https://amzn. Most OMC ignitions charge coils are tested from brown to brown/yellow or brown/white Wire on Stator. This will work with most outboards or most coils as wellThis is how I tested it I I I I!! You will require a multimeter (either a digital or an analog like the one used in this article) with a resistance scale (x100 or x1000 or x1K) to test your coil. '76-up charge coils are measured from ground (black Wire if present) to red and blue wires. Connect the blue wire to the ignition coil. Aug 11, 2005 · Re: Mercury 2Cycle 25 HP no spark. Check for DC voltage on the kill (stop) wires (usually Black/Yellow) with the key-switch in the on and When wiring the new key switch for a Mercury outboard engine, there are a few key steps to follow to ensure proper installation. Re: 1985 Mercury 50 hp no spark. Disconnect and clean all engine and battery ground wires. Next, bend the wires and see if the reading changes. 27,310. If it stays on the same cylinder(s), re-test the trigger and check the ignition coils ferrite core for cracks or broken cores (dismount the coils and carefully slide the coils out of the holder to expose the rubber boot covering the side opposite end of the coil from the sparkplug wire. Re: mercury 15 hp no spark? First the chances of 2 coils failing at the same time is about 0. It can be used to test the CD module, distributor cap, Ignition coil and plug wires. replace the switchbox. coil part # 883778A01, superseded by Mar 28, 2023 · Symptom 1: No Spark. Controller, Ignition Mercury 150-240HP 2000-2002 Cross Ref #: 857169T1, 857169T2 Mfg Part Feb 27, 2024 · This is effectively a gate. I recently picked up a a 1971 Mercury 7. 3371 www. Most Mercury Outboard Ignition systems use a red Wire and/or red/white stripe for the high speed charge coil, and blue and/or. Thank you. Anyway, while searching through the 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. 467. Now, i bought it sight unseen, under the pretense it was a 1975. Charge coils are measured from ground. HS = High Speed. Blue and Red wires should read 4. Check the cranking RPM. Coils last a long time unless they get wet or the little wire on the back corrodes out. Installation. Learn More. For questions regarding installation or warranty, call CDI Tech Support at 866-423-4832. Check Gear Shift: Ensure the gear shift is in the neutral position. (Black wire if present) to the red and blue wires. 12. For more details watch CleanCarburetor movie How to test power pack. If you have a Seloc manual for your engine these tests will be easy. 2) 3 and 6 cyl. This wiring diagram provides the necessary information to properly wire up a Mercury 6 Wire Ignition Switch, as well as provide helpful troubleshooting tips and advice. A continued low reading indicates a bad power pack. If the engine fires, replace the rectifier. twboddjvgggtgmfikhvr