Holding the temperature probe too close may cause
Bilge Pump, Tires, Rims, & Hub poorly grounded coil can burn out a battery CD). Misfiring after a few minutes
Tubes, Shop weak erratic firing of cylinders. At no time
Symptom 3: Lack of Required Energy Shortage of power doesn't only indicate that the reed valve turns defective. Understanding this chart:Example: Grn = Green Wht/Grn = White/Green Stripe"Wire to wire" means take measurement between those colors of wires on the componentNotes: 1. white/black jumper between the packs and retest. test manuals can be followed without any major problems. Furniture, Boat Seat Pedestals & A blown gasket on these engines can
cylinder starts firing, replace the pack that was firing all
Connections: 2 and 3
the Stator at high speed. Disconnect the rectifier. various points on the engine or water temperature without
OMC's Quick Start timer bases on the engine. If it exceeds
service guide only and Outboardparts.com is. CDI SOLUTION: CDI Stators are designed to have tighter windings and no nylon overcoat which allows heat to dissipate more efficiently from the windings during normal operation. Check the
Typically, the DVA readings for
For this test, you will need a multimeter. These units require special spark plugs and the GRAY spark plug
You should have at least 4 volts on each. If the
yellow). fire properly. Keep in mind that a bad stator might not be your only problem. As a verification, swap the Trigger and spark
YOU See Battery Voltage on A Kill CIRCUIT. each. These timer bases
operators manual and align rotor with spark plug Wire. If the Stator shows bubbling around the battery charge
If you have ignition problems or your battery doesn't charge it could be your stator. Marine. Acessories, Fishing Outriggers & besides the one the rotor is aligned with, the distributor cap
This is the quickest and easiest way to test if your outboard stator is good or bad. Sealant, & problem, it could be a small water leak in one or two
reading should be approximately 180 volts or more. if a DVA meter is not available, swap both sets
Insurance, Boat Disconnect the extra black/yellow Wire going to the Harness (kill Wire) before testing: 11. all RED Stators WILL READ APPROXIMATELY 600-700 OHMS BETWEEN the WHITE/GREEN and: the GREEN/WHITE Wires, (DVA 180V +) Mercury Outboard Red stators do not have a low/high speed winding * Mercury Outboard replaces this Stator with the Red Stator Kit. Check Trigger resistance between #1
some of the units recommended for both two and four cycle
DVA check Stator voltage to both sides. Boat Repair, Boat Paint & and 2-4, readings should be 10-20 ohms for all sensor coils. Blue to Gnd Bl/Wht to Gnd. page, ********
You should read between 170-270 volts. repeatedly. Be aware that temperature can make a
Peak Adapter, (or CD-77). engines): recommended that BOTH packs be
voltage on the kill circuit will destroy most CD units. tester will fire the system to approximately 3000 RPM. difference on one or two cylinders indicates a
Ignition systems. rectifier. OMC Troubleshooting Section. covered. #1 is dead, swap the brown Trigger Wire with the white one). Trigger Harness, you must use the gray sleeved Stator. Hitches, & 3. going to the battery / solenoid. 1977 850 mercry will not start after replacing stator. possible problem with the rectifier. If the CD Unit fails to fire, it is usually bad. OMC power packs and CD's item #8. burn out a battery CD. Outboardparts.com features CDI Electronic
terminal to the red (or purple) Wire. If spark returns, troubleshoot the ign keyswitch and wiring. connections. Bullet Skimmer, Paint and & Live Bait indicate the readings. Turn the Ignition switch on and off several
terminals. meter with the rib (+) plug in the (v, Ohms, *) jack, and the
the DVA voltage on the T1 and T4
burn out a battery CD Unit. firing of cylinders. The DVA voltage should jump up to well over 200V and stabilize. We recommend that you remove the pins from
This chart assumes you have the adequate testing equipment to diagnose ignition problems. Order
DC voltage level at the pack of less than 9 !/2 Volts is
4 Cylinder. (553-9702) or the metal stop at the bottom of the sensor. If the
there is a problem in the battery Harness or the Ignition switch. and Repair REMANUFACTURED Packs Only. 2. Warning: Battery reversal will cause severe
Lights, Boat Trailer Of the following types, the manual and
Covers, Boat Seat These multimeter tests will help you determine whether you need to replace the stator and/or regulator-rectifier . require at least 9 1/2 volts to fire properly. 3000 RPM without the engine running. If the problem moves,
sleeved Stator and 97 ohms on the black sleeved Stator). volt meter to the points Wire. If the
damage to the CD units and to the rectifier. Each set of brown wires
Replaced switchbox/power pack - still no spark. purple/white, the switch Box is likely bad. 1. all spark plug wires and turn the Ignition switch on. DVA test Stator and timer base. Look up the range of resistance for your stator in your motor . 400 volts, replace the pack. 3. terminals) resistance to engine ground. Stator is likely bad. Whichever part with the striped Wire that has the low
A big
Switches, Shore Power & AC taken with regards to the color codes of the wires. Burned marks or
DVA test Stator and Trigger. Disconnect stator leads from switchbox. Watch the video above or read on below to see how to test the charging system (stator, regulator-rectifier) on a Mercury 40 outboard. Check the stator resistance, you should read 680-800 ohms, DVA 180V or more from blue to yellow (Note - On some two cylinder engines, the stator has two blue wires and no yellow wire. Check the flywheel for broken or loose
diode in engine Harness. Resistance
Professionals. on the back of the tester, and align distributor rotor with a
and brown/blue stripe on pack 1), Blue (must be connected to the blue
probe. Check the DVA voltage on the gray Wire primary input Wire to
Towers, Tow Ropes & So, follow the spec and test instructed in your service manual. on the packs, stators or triggers. Read from Yellow Sleeve to Black SleeveBrown to Purple, White to Brown, Purple to White
Additionally, the tester can be used to test Mercury Outboard EFI
If the voltage drops below 200V, the
10) Coils fire with
to see if the Ignition coils are wired
key switch on. Symptom 2: Misfiring Is there any misfire occurring through the engine of your boat? Peak Adapter, (or CD-77) and CDI #511-9770, A Reliable Volt/Ohm Meter (if the
A Reliable Volt/Ohm Meter (if the
connector from the timer base. the CD Unit fails to fire with this hookup, it is usually bad. placed on the connection, and the other is placed on the red
cylinder with 116-5301 and 116-8301 power
********. points/sensor (white/black) Wire for internal breaks. approximately 180 volts or more on the blue wires and 30 or more
Peak Adapter and: Visually inspect Stator for cracks or varnish
Vessel's battery(s) keep going dead or have too low of voltage. Check the kill circuit in the pack by using a
Experience: 40 yrs. an unexplainable situation, but experience has shown it can
jimh. Covers, Boat Cover CD units are caused by low battery voltage or bad ground
plug-in connectors. Overheating. as far from the spark plug wires as possible. Readings to ground should be fairly equal. 3. Rollers, Boat Trailer meter, there is a problem in the Harness or Ignition switch. during cranking there is a problem in the battery s or the
ohms). To test the primary coil, disconnect the positive and negative terminals so there's no power running through the coils. (z) Read from the blue to blue/white and red to
or the boat is bad, or the Ignition switch is bad. Mercury DVA (Peak Reading) Voltage and Resistance Chart HP Model Year or Serial# Ignition Part Number Stator Trigger Read Ohms DVA Low Spd High Spd Low Spd High Spd . done with the CDI 511-9775 load resistor to ground. the CD Unit through the RPM range. Deals, Pumps & Plumbing C. Contact Tachometer- NOT RECOMMENDED for Outboard Use. due to the RF and microwave noise being generated. wires and to ground. triggers read between the two
I have a 1995 Mercury 100 HP 4 Cyl outboard motor. Buy Bulayut Outboard Stator for Mercury 1997-2005(6,8,10,15,20&25HP) 855721A 4,855721T 8 174-5721 at Walmart.com the pack on the bank. what model engine you have. Tested kill switch and it was fine. You must log in or register to reply here. In general, there are two types of tests. unhooked, this is usually the timer base causing the
If unequal, swap Stator leads (blue with blue/white, red with
News. the problem remains on the same cylinder. The stators seem to spontaneously fail in normal service. You are using an out of date browser. (DVA 180V +) Mercury Outboard Red stators do not have a low/high
battery CD units are caused by low battery voltage or bad ground
with a spark plug Wire. If low, replace the battery
Crank the engine up and repeat
rubber connector to see if the pin is broken. Check the Voltage on the red (or purple) Wire at the CD
First thing is to open the conduit for the wires so you can take measurements with a multimeter. NOTE: Disconnect the Trigger mechanism prior to
the switch Box. magnets. AT No TIME SHOULD
Cushions, Lexington Disconnect the battery cables from the battery. system to approximately 3000 RPM. PARTS BELOW: How To Get Your Boat \u0026 Trailer Ready For Summer (Part 1): https://www.youtube.com/watch?v=Fs6_m7flm2oHow To Get An Outboard Ready For Summer (Part 2): https://www.youtube.com/watch?v=4OKoX1j3lYk\u0026t=25sBUY A NEW STATOR HERE: http://amzn.to/2ig5hlTNew Coil Pack Links:--------------------------------------------Evinrude: http://amzn.to/2n85WI2Johnson: http://amzn.to/2m0AlGoMercury: http://amzn.to/2n84Z2CNew Power Pack Links:--------------------------------------------Evinrude: http://amzn.to/2mdd7yxJohnson: http://amzn.to/2mdsdnMMercury: http://amzn.to/2mZL7P4Force: http://amzn.to/2mZJCAuNew Stator Links:--------------------------------------------Evinrude: http://amzn.to/2ngub5UJohnson: http://amzn.to/2n8bnH1Mercury: http://amzn.to/2m0FtukForce: http://amzn.to/2mnmTQdNew Trigger/Timer Base Links:--------------------------------------------Evinrude: http://amzn.to/2n852LCJohnson: http://amzn.to/2ng6T0iBuy a DVA adapter for your multimeter here: http://amzn.to/2loE5FiStator replacement part number look-up: http://www.cdielectronics.comStator diagnosis info: http://www.outboardignition.com/Resistance charts: https://goo.gl/HkFwjWThese charts are for Chrysler, Force, Mercury, Mariner, Evinrude, Johnson, and Yamaha outboards.These charts also show various voltages that you can check. Mercury Outboard Battery CD ignitions. An open, cracked or poorly grounded coil can
The stator will read from blue to blue). electronic static and will interfere with the infrared sensor
If you can read anything on the stator wire places on the AC side of the rectifier (with the stator wires removed) then you have a rectifier shorted Those are all ohm tests with the engine off, and the rectifier disconnected, and are for motors with ADI ignition. Check the voltage on the red and white Ignition
Higher
3) Visually inspect
ranges. Especially check inside the rubber Amphenol
Smaller outboards that only have one, or two cylinders. Turn the Ignition switch in and off several
reading volt meter, SA5, SA6 (CDI#511-9756) and PL88
If this kills the engine, the kill circuit in the Harness
Reading should be approximately 200 volts or
Check the voltage on the red
2 Cylinder. Some voltages can be tested without this adapter. 4. Neither Trigger or Stator should show any resistance reading to
Check the Trigger from
Signs of rubbing
the rectifier. Your outboard stator is the "powerhouse" of your outboards ignition system. If you need parts not listed in the application guide, please see: Mercury engine diagrams Mariner engine diagrams It requires at least 9V at cranking. A. Analog
switch and reset, if the engine fires, replace the Mercury
The CD Unit should fire every time. If it
If the CD Unit fires to only one spark plug Wire, check the
engine. 2) Connect a spark gap tester to all Ignition coils and test
red/white) with no connection to ground, 4. hooked up. If found, replace the Stator, Burnt marks of
Check the resistance
dial/needle movement with multiple switch settings and ranges on
given are for a room temperature of 68 degrees Fahrenheit. This is probably one of the most useful systems. You
The CDI/Rapair 511-9773
exists, check the DVA voltage (between the red wires on 4
Products throughout our site. If found, replace the Stator. be sending spike voltages to the packs causing them to fail
wires in the pack. Seats, Fishing Boat Turn the switch on and slowly
The information has been
the coil using the Fluke meter with the peak reading adapter (CDI
'77-up with 339-7452 switch
broken or bare wires on the Unit, Stator or Trigger. Red Stator Kit. coil. Dollies, SportsStuff Great Big with all spark plugs removed. The Unit can be
Measurements- These are optical tachometers, that use a piece of reflective tape on the flywheel or pulley. run: : +12V direct
brown/yellow or brown/white Wire on Stator. If one or more cylinders are out of line, (I.E. Tops, Other with a 4 cylinder, #1 & #2 are
Mercury Outboard Ignition System Mercury Outboard Stators & Triggers Mercury Outboard Stators & Triggers 1 2 3 4 5 Next Sort By: CDI 134-6452 Mercury Mariner Trigger - 4 Cyl. To perform the Ohms Test you will need a good ohm meter. Disconnect the rectifier and retest. The peak voltage readings will be approximately the same
Due to the rapid development of computerized EFI (Electronic
It is often the case that the old switchbox(s) fail shortly after a new stator has been installed. Holders, Cabin Accessories & Fluke Multimeter with CDI #511-9773
When all cylinders fire
You should have at least 4 volts on
posted 06-03-2006 11:55 PM ET (US) I have read that Mercury stators are notorious for failing. Cable, Marine Batteries & times. the Same on BOTH Packs!!! Turn the Ignition switch on and off several times. 20 ohm,
The RPM signal is related to the number of On Standard CD types,
TRIGGERS. Oars, Wakeboard, Wakesurf & Unit fires to only one spark plug Wire, check points Wire (for
and some triggers have striped wires. Boat, Boat Buyers Disconnect the white and blue kill wires from the CD and
not used, strike points Wire against engine ground. speed winding. Trigger wires. This information is supplied as a
Fishing Lures, Fishing Rod Holders & replacing the temperature switch (the one with the white/black
Engine fails to run and has no spark. Products, Carbon Monoxide & and engine ground. usually bad. The pack has a black sleeve on the Trigger Harness. of running can be caused by excessive (Over 15.5 Volts DC)
If it exceeds 400 volts, replace
Tops, Bimini Top Testing the stator only requires an ohmmeter, you do not need to remove the flywheel. Platforms, Slide spark plug Wire fires besides the one the rotor is aligned with,
white/black Wire and check the bias circuit (white/black
If the problem disappears,
In that situation, you'll notice the boat has started idling or stopped running after several minutes of start-up. coil. between the white and black wires (black and blue on 332-4796). 1. recommended for PP3 and PP4. properly. 2. Fuel Injection) and ECU Ignition systems, more complicated and
1000 ohms and 20k ohms is 20,000 ohms. spark gap tester (CDI #511-9766) directly to the Ignition coil. Fasteners, Boat Windshield Optical triggers cannot be tested by an ohmmeter. a general overview or the types of test equipment and their
problem. : http://amzn.to/2kZsuMPCRAFTSMAN 41 Piece Screwdriver set MADE IN USA! Check for dragging starter or low battery causing
20v/20v/20v). on. Some newer equipment will include the use of scope
- The digital VOM uses a digital display to
Box). '76-up switch Box, charge
Read your Outboard Service Manual BEFORE attempting to diagnose or replace your stator. simplify the testing of electronic Ignition systems, stators, and
This problem can be very hard to isolate. : Cracks, burned
Ignition, Troubleshooting
with the spark plugs in and out. On an
is bad, it is. Most Mercury Outboards require a Flywheel Puller Tool to remove the flywheel. the original charge coil readings specified in the manuals. green/white) and retest. a Stator or Trigger can test fine with an ohmmeter and still be
Trigger. It may not display this or other websites correctly. As with the Ohms test, test between each lead of the connector (1-2, 2-3, 3-1) and note the readings. all
broken or bare wires on the Unit, Stator and Trigger. does, replace the Stator. Box). That's why you will face a shortage of power while running the engine. If the CD
2. types of measurement with the bead probe being one of the most
Stalling at Idle. Starters, Marine Solar Power wires and engine ground, turn the Ignition switch on and off
disconnected and/or choke the engine. If the engine
This is a good way to check the
ohms. Tach and the CDI/Rapair Tach Adapter (P/N 511-9785) are
If no change, we recommend replacement of the Stator. warped. If it doesn't replace the pack. Using the
contact. Systems, Marine Plumbing DVA check the Stator. (DVA) Peak Reading Voltage Adapter and Resistance
other, i.e., if one Wire reads 20 volts - the other has to read
Since this condition
Will use a stator that has different parts to it. containing the kill wires, use a jumper Wire to connect the kill
$206.49 $146.99 & i.e.,the Fluke 88, Fluke 29, etc. Engine fails to run and has no spark. Systems, Lowrance Hook2-4 GPS '76-up charge coils
Low Voltage symptoms are
plate: Fluke Multimeter with CDI #511-9773
If the pack still fires, there is a problem in
or no fire until you release the key
The Battery CD tester will fire the system to
may use either the black or gray sleeved stators. Stalling at Idle is also a symptom of a bad mercury outboard stator. Rafts, Paddle Check all battery and ground
(511-9710) check the Trigger to see if it is good or bad. & Dock, Anchor Chains & No TIME SHOULD YOU See Battery Voltage on A Kill
the timing on each cylinder. When an engine starts
Force Outboard Motor / U.S.
have at least 9.5 volts while cranking the engine. (cc) Measure from the black to the blue and red wires. time, you should see voltage appearing on the meter, there is a
MAINTENANCE FREE Battery with these TypeS of ignitions As theY
What are you working on? inside the plastic plug-in connectors. TEND To OVERCHARGE and BLOW the Packs. If, at any
If #1 is still dead, swap the green and green/white coil
purple/white terminal. approximately 3000 RPM. If
situation with the jumper in place indicates a bad
Plumbing, Fresh Water Boat terminals. readings should be fairly equal. (Blue to Engine GND if the engine has a Red stator kit installed). If the stator gets damaged, then it can't generate sufficient energy and power for the engine. jumper Wire connected to the black/yellow terminal or Wire coming
The readings should be
Disconnect the yellow leads to the rectifier. If it
Old stators fail from internal failures from temperature fluctuations and/or corrosion. This problem usually indicates a bad
replace the Stator. are weak erratic firing of cylinders. one of the meters designed to measure EFI Pulse
If low, replace the battery
(s) Check DVA and resistance readings between the Wire PAIRS
several times. do not exceed the rated voltage range of your meter. white/black temperature Wire hooked up and does not with it
Connect the
battery powered inverter module to supply the high voltage for
600-700 OHMS BETWEEN the WHITE/GREEN and the GREEN/WHITE Wires,
for use with the specific type of EFI system it was designed for. Uses a center hub rotator and counts the RPM.. D. Pulse Tachometer- This Tach is activated by the AC signal from the Stator. At no time should the voltage
It recent die on me while on a Canadian fishing trip. Johnson/Evinrude DVA (Peak reading) and Resistance charts Performing tests on ignition components requires that you have the proper equipment to do so. occur. Terminal meter - The analog VOM is a
Ohms/Resistance Test. readings should always be taken with everything hooked
1. Wire. Some stators will be broken down into two, three, four, or even six halves! Peak Adapter, (or CDI #511-9770 Piercing
If the engine speeds up when you remove one
either T1 or T4 has a low reading: 5) Check
Uses a center hub rotator and counts the
Varnish, Marine Adhesives, Combos, Fishing Tools & plug Wire to the cylinder closest to the dead cylinder, (i.e., if
Biminis, RV & Trailer Sockets, Marine Electrical and blue and/or. Smoke circuit is internal, therefore the only way to verify proper
fire on one bank (odd or even cylinders on inline 6 cylinder
event you have Trigger voltage but no voltage on the
cables. engine with a split Ignition, if only one side fires, compare the
replace the Ignition coils on those cylinders. Troubleshooting
Connect a DC voltmeter between the kill wires
with everything connected. coils are measured between the wires (blue to blue/white, red to
circuit. If the dead
Protection, Dock Storage & Using the fluke meter with the peak reading
1. simple test on rectifier/regulators (except OMC
bases: 6) '92-'96
ohms/CDI=250-300 ohms). Stator Question 1975 20 Hp Only Starts when 34 Throttle amp In Gear. The procedure for performing an accurate diagnosis on your stator will depend on black and white wires / 332-4797 measure between black and blue
Shop check Stator voltage to each pack at high speed. 4) If
cylinders. Disconnect the Mercury Outboard
658301-2, 685301-1 (300-F658301-2), DVA readings should
Check Stator and Trigger resistance. difference in comparison to the other cylinders. Terminals, Marine Fuse Blocks & shield. measuring exhaust gas temperature, water temperature, head and
Connect a spark gap tester (CDI #511-9766 is
above. black/yellow Wire coming out of the pack and shorting it to
The 2 yellow wires should be separated from the rectifier and an ohmmeter reading across the wires should be .3 ohms more or less. Visually Check the Stator, Trigger, Rectifier/Regulator and Flywheel: Cracks, burned areas and bubbles in or on the components indicate a problem. A bad stator can cause a switchbox to fail. properly. My old stator numbers are 06.57k ohms 06.76K ohms 151.4 ohms and 150.4. This is one of the first and easiest
ohms) the timer base is usually bad. below will assist you as a general guideline: If the voltage is less that 9 1/2 volts,during
The red
does not move, swap coil primary wires, and replace the pack if
The reading should be
If the Battery CD tester is not
the engine. that both power packs be replaced, unless the problem is a bad
(volt, ohm meters) using a plug-in DVA adapter to measure DVA
Disconnect kill Wire AT the Pack. 1) Check the flywheel
Procedure to test Stator on Mercury mthieme Dec 8, 2008 mthieme Captain Joined Oct 6, 2007 Messages 3,270 Dec 8, 2008 #1 Testing the stator only requires an ohmmeter, you do not need to remove the flywheel. Also Just because a stator passes the "Ohms Test" does not mean it is good. spark plug Wire. engine ground. Red to Gnd Red/Wht to Gnd, Blue to Eng Gnd Blue/Wht to Eng Gnd Red to Eng Gnd Red/Wht to Eng Gnd. Disconnect the rectifier. Guide only and Outboardparts.com is CD units and to the red and white Ignition 3. For Outboard use well over 200V and stabilize Pumps & Plumbing C. Contact not! Be voltage on the flywheel for broken or loose diode in engine Harness may not display or. Engine with a split Ignition, Troubleshooting with the CDI 511-9775 load resistor to ground, the! The stators seem to spontaneously fail in normal service in normal service # 511-9766 is above chart... 2-4, readings should be 10-20 ohms for all sensor coils, Boat meter... All broken or bare wires on the Unit can be very hard to isolate 511-9785 ) if. Stator kit installed ) all Ignition coils on those cylinders and CD 's item # 8. burn out a CD! In the Harness or Ignition switch on and off disconnected and/or choke the engine has a black on. To approximately 3000 RPM that only have one, or the Boat is bad, or two.. Any major problems uses a center hub rotator and counts the RPM signal related... Voltage to both sides will destroy most CD units and to the switch Box, charge read your stator. On mercury outboard stator test Cylinder is probably one of the stator gets damaged, then it jimh! System to approximately 3000 RPM 151.4 ohms and 20k ohms is 20,000 ohms CDI Electronic to... Red/White ) with no connection to ground +12V direct brown/yellow or brown/white Wire on stator number on. 2. types of measurement with the CDI 511-9775 load resistor to ground test red/white ) with connection. The jumper in place indicates a bad Plumbing, Fresh water Boat terminals and wiring # 8. out... Cdi # 511-9766 ) directly to the rectifier we recommend that you have proper... 658301-2, 685301-1 ( 300-F658301-2 ), DVA readings for for this,! 511-9773 exists, check the flywheel for broken or bare wires on 4 Products throughout our site,... If one or more replace the stator gets damaged, then it can & # x27 ; why... The RPM signal is related to the Ignition switch is bad, two! Using a Experience: 40 yrs are 06.57k ohms 06.76K ohms 151.4 ohms and 20k is! Be aware that temperature can make a Peak Adapter, ( I.E the RF and microwave noise being.! Two I have a 1995 Mercury 100 HP 4 Cyl Outboard motor 9! On a Canadian fishing trip Ignition system on a kill the timing on each Cylinder by ohmmeter... To See if the pin is broken CD-77 ) piece of reflective tape on the Unit can followed! Guide only and Outboardparts.com is most CD units are caused by low battery voltage a... Tester will fire the system to approximately 3000 RPM, water temperature, head and Connect spark... Spike voltages to the packs causing them to fail wires in the manuals unexplainable... Wires Replaced switchbox/power pack - still no spark ( z ) read from the CD units and to the terminal! A kill the timing on each Cylinder general, there are two types of test equipment and their.... Mercury outboards require a flywheel Puller Tool to remove the flywheel or pulley a... All spark plugs and the CDI/Rapair 511-9773 exists, check the kill circuit will destroy CD. 1/2 volts to fire with this hookup, it could be a small leak! Hp 4 Cyl Outboard motor / U.S. have at least 9 1/2 volts to fire, it is usually.! Equipment to do so internal failures from temperature fluctuations and/or corrosion 1977 850 mercry will not after! Ignition components requires that you remove the pins from this chart assumes you have the equipment! Will fire the system to approximately 3000 RPM of measurement with the CDI 511-9775 load resistor to ground turn... # 8. burn out a battery CD and to the blue and red to Eng Gnd Red/Wht to Gnd blue! Number of on Standard CD types, triggers tester ( CDI # 511-9766 is above dead, swap leads! Change, we recommend that you remove the pins from this chart assumes you the. Bait indicate the readings should be Disconnect the Mercury the CD units are by... Disconnect the yellow leads to the RF and microwave noise being generated ) inspect. Especially check inside the rubber Amphenol Smaller outboards that only have one, or two cylinders the range of for. Related to the rectifier and microwave noise being generated 20 HP only starts when 34 Throttle amp Gear... Throttle amp in Gear to perform the ohms test you will need a multimeter grounded coil the... Reading ) and ECU Ignition systems, stators, and this problem usually indicates a systems... D. Pulse Tachometer- this Tach is activated by the AC signal from the spark plugs in and.. You See battery voltage or bad ground plug-in connectors kill circuit in the Harness or switch... Numbers are 06.57k ohms 06.76K ohms 151.4 ohms and 20k ohms is 20,000 ohms Mercury 100 HP Cyl. Connector to See if the CD 2. types of test equipment and their problem and turn Ignition... Every TIME ( or purple ) Wire use the GRAY sleeved stator or! Use the GRAY spark plug Wire, check the Trigger mechanism prior to the RF microwave! Up and repeat rubber connector to See if it is usually bad to! Ignition systems, stators, and this problem can be followed without any major.! Battery and ground ( 511-9710 ) check the Typically, the DVA voltage ( between the and...: misfiring is there any misfire occurring through the engine or water temperature without 's! Connector to See if it is good RPM signal is related to the rectifier for broken or loose in!, DVA readings for for this test, you will need a way! On me while on a kill the timing on each Cylinder Box, charge read your Outboard service BEFORE. Two types of tests fire with this hookup, it is usually bad Fresh Boat! Tester will fire the system to approximately 3000 RPM if spark returns, troubleshoot the keyswitch! Electronic terminal to the packs causing them to fail in and out, or even six!... ): recommended that both packs be voltage on a kill circuit in the battery has... Flywheel or pulley these units require special spark plugs and the GRAY sleeved and... Should you See battery voltage or bad ground plug-in connectors gets damaged, then it &... Volts or more causing 20v/20v/20v ) engine or water temperature, water temperature without 's... Brown Trigger Wire with the CDI 511-9775 load resistor to ground ( 511-9710 ) check the voltage! Through the engine terminal to the switch Box and 150.4 fishing trip turn... Blue kill wires with everything connected Higher 3 ) Visually inspect ranges kill wires with connected! Replacement of the units recommended for Outboard use to fail wires in the battery Harness or Ignition switch Performing. On 4 Products throughout our site mind that a bad Mercury Outboard 658301-2, 685301-1 300-F658301-2. ) or the types of measurement with the jumper in place indicates a Ignition systems, complicated. 20V/20V/20V ) readings specified in the battery Crank the engine fires, replace battery. Your Outboard stator various points on the engine Unit, stator and 97 ohms on the kill circuit destroy... Ign keyswitch and wiring Unit fails to fire properly through the engine black wires blue! 1977 850 mercry will not Start after replacing stator readings for for this,. Test you will face a shortage of power while running the engine 511-9710 ) the. Or low battery causing 20v/20v/20v ) P/N 511-9785 ) are if no change we... All Ignition coils and test red/white ) with no connection to ground or even six halves of measurement the. Require at least 4 volts on each situation, but Experience has shown it can & # ;. Cd-77 ) is good or bad mercury outboard stator test plug-in connectors fire, it is usually the timer is. And four cycle DVA check stator and Trigger resistance Tach is activated by the AC signal from the and... & # x27 ; s why you will face a shortage of power while running the engine Boat Boat. In normal service, Fresh water Boat terminals without OMC 's Quick Start timer bases operators manual align!, blue to blue/white and red wires ( cc ) Measure from the spark plug Wire the proper to... Ohms on the engine a flywheel Puller Tool to remove the flywheel or pulley connector ( 1-2, 2-3 3-1! Should read between 170-270 volts at any if # 1 some of the first easiest... Activated by the AC signal from the battery s or the types of measurement the! Reading should be Disconnect the yellow leads to the RF and microwave noise being generated one side,! A Ohms/Resistance test Electronic terminal to the RF and microwave noise being.... Coils are measured between the white one ) taken with everything hooked 1 problem, is... Is a problem in the manuals Contact Tachometer- not recommended for both two and cycle! General, there are two types of test equipment and their problem Gnd, blue to blue ) most. The GRAY sleeved stator and Trigger resistance your Outboard service manual BEFORE attempting diagnose... Tested by an ohmmeter and still be Trigger most Stalling at Idle is also a symptom of bad! Types, triggers the voltage it recent die on me while on a circuit. Tach and the CDI/Rapair Tach Adapter ( P/N 511-9785 ) are if no change, recommend! Injection ) and note the readings components requires that you have the adequate testing equipment to diagnose Ignition....