regulator rectifier test

This website is our direct channel to the public. put one lead on the plus output of the regulator and touch the other to one of the 3 input pins where the stator connects. This is an article showing how a user how can test a voltage regulator to see if it is good or defective. Test results show that the regulator is grounded but you are not getting power from the battery to the B+ terminal of the regulator therefore it won't charge. Test the Regulator. We aim to provide useful information on regulator rectifiers, stators, Flywheel weeks and CDI units. Generally, motorcycles feature a three-component system containing three wires that link the stator to the regulator rectifier. Santa's little helper , Dec 11, 2010 Set the parking brake and shift the transmission to Neutral (manual) or Park (automatic). Diode Test. If the wiring fails any of the above tests, th e wiring problem needs to be isolated and fixed. Also would be nice to know which pins the alternator's AC voltage comes in on, and the regulated DC output. I have three 32800-94620 rectifier/regulators (I have lots of spare DT115/140 parts) which all fail with the same results. Park the motorcycle on its kick stand. A regulator rectifier is a standard component of this circuitry. With a DVA test the voltage between a clean engine ground and each yellow stator wire (make sure all the wires remain connected). Do a second test of yours after ensuring the battery is fully charged first. Regulator / Rectifier test Discussion in ' Dakar champion (950/990) ' started by Santa's little helper , Dec 11, 2010 . This is the only test needed to tell whether the regulator is good or not. Might have a shorting coil. Set your meter to Ohms function, there should be a reading (continuity) between any two of the 3 wires (IE. Step 1. TRC is now closed as an active forum, it is now a read only archive. The regulator rectifier could also fail if the system overheats, as discussed earlier. If you need a regulator rectifier or ignition unit for a Vintage motorcycle or ATV, we probably carry it, too! Step 2. 201 Posts . 1985 Johnson Evinrude Power Pack 6 Cylinder 150HP to 235HP test $127.99 : 1985, 1989-1990 Johnson Evinrude 6 HP Regulator Rectifier $34.99 : 1985, 1989-1990 Johnson Evinrude 8 HP Regulator Rectifier $34.99 : 1985-1986 Johnson Evinrude Power Pack 4 Cylinder 90-115 HP $124.99 : 1985-1986 Johnson Evinrude Power Pack 4 Cylinder 90-115 HP $114.99 Set your multimeter to DC Voltage and select the 20 Volts in the scale. The AC output lead wire leads from the voltage regulator to the stator. Voltage Regulator Test. When the regulator rectifier can no longer moderate voltage levels, your boat battery will begin to overcharge. Regulator/Rectifier Running Tests 1.Run the outboard motor at approximately 1500rpm. I was able to buy one from a friend with some other small engine tools. This test is a simple procedure to check alternator voltage regulator output. Thank you. In the case you are experiencing these symptoms, a digital multimeter can be used to test the rectifier function. While a simple test can inform you of a failing regulator, the entire charging system should be checked to avoid future problems. Any and all technical info would be appreciated. If you like the content you find here, don't block the ads check them out instead. The tachometer is not functioning. They told me how to test it once I got home. 4.If the Stator tests within specifications and visually looks ok, you will need to test the regulator/rectifier. 3A RECTIFIER Test by performing a continuity test. Your bike’s alternator stator coil produces AC voltage. 18A and 20A REGULATOR/RECTIFIERS Install a known good regulator/rectifier and retest the system. Find on your regulator the positive lead and the negative one (see Figure 1). The regulator rectifier then rectifies the voltage; that is it turns the voltage from AC into an undulating DC. To test the regulator/rectifier: Well, if you understand how diodes work, you can set your multimeter to "diode" mode to test the polarity of the terminals of your reg/rec module. Start the engine and run at the maximum throttle position while observing the DC voltage. I had good readings coming off the stator but low reading after the regulator/rectifier. Discussion Starter • #1 • Dec 24, 2009. so ive read all the threads on testing the R/R wiring harness and all. Hi, I am looking to test the new regulator/rectifier that I just installed on my 1987 Johnson 140 TXCLUA. Golf carts run on an electrical system using 12-volt batteries. The configuration of diodes and the orientation of the bridge depend on your specific motorcycle, so you need to consult the wiring diagram of your motorcycle manual. You should get a reading between 0.400 V and 0.600 V on every pin. The voltage regulator controls the flow of voltage returning from the magneto allowing a constant charge of 14-volts flowing back to the batteries. You won't have any trouble diagnosing the faulty regulator rectifier if the battery is the cause. When the regulator malfunctions, it can either drain the battery or cause an overcharging that can damage the battery or the wiring harness. If all is well and the same, I would consider...and recommend the RMStator rectifier/regulator. I ordered a Chinese replacement regulator/rectifier and when I got it, I tried it on a 12 volt AC transformer to see how it would perform. The voltage is then regulated; the voltage being limited to a maximum of about 14.5 volts and feeds this regulated DC out to the battery. b. They said there is no way to test it off of the machine. This handheld tester allows you to test the voltage and will help determine if the rectifier should be replaced. Identify the wires. Check the ground wire first to ensure that it is properly attached and in good condition. c. First, the diode can burnout and cause the battery to drain. Honda regulator/rectifier test; This is an independent one man website solely funded by ad revenue. If the voltage regulator malfunctions, it will stop … You need a digital multimeter for this test. This is because the connected 12-volt electrics will pull more current from the regulator rectifier to compensate for the reduced voltage. Here's a vid I did many years ago on mine. I have been testing voltage at the battery with the engine off and then after the engine runs for awhile..I get varied voltage. The Kohler Regulator/Rectifier tester works the best. You just plug it in and follow the instructions sheet based on what type Amp system you have, I have found this is the easiest was to test … These reg./rectifiers (RR-units) are usually sealed with epoxy and it is considered difficult to find out if the unit is faulty or not. The regulator/rectifier converts this from a 3 phase AC power to a single phase DC. I wanted to know if it was stable, would heat up… As soon as I connected it to my transformer and powered it up, my test leads just melted, so I figured it was defective. Testing a Regulator Rectifier What procedure would you use to test the reg/rec on a bike engine? Re: How To Test Kohler Rectifier ? Things to Note Regulator/Rectifier=2 Functions: Rectifier: The rectifier is responsible for converting the alternate current (AC) current created by the stator to direct current (DC). We go through only one test, a voltage check of the voltage regulator using the voltmeter of a multimeter. Basically, it chops off the negative polarity portion of the current that the battery can't use. With all of my recent electrical problems, I have discovered that both my ECU and Power Commander had blown (which first I dont know). Step 1. Also test the stator as outlined in the manual. The voltage regulator on a Kohler engine is responsible for providing a smooth electrical charge back to the battery from the stator. A regulator/rectifier is very easy to test doing a continuity test with a multi meter . So long and thanks for all the fish. Put your multimeter to Diode. Test that housing of regulator/rectifier is properly grounded: Resistance between regulator housing and battery ground should be essentially 0. I know how to test rectifier circuits, just need the pin positions on the regulator. The battery charge lead runs form the voltage regulator to the positive side of the battery. take a reading, and repeat for the other 2 pins. II. If reading is NOT OK, then you probably have a charging system problem. You'll note signs right away like poor starts, fluctuating meter readings, and dimmed headlights. OUTPUT TEST a. Connect a DMM (set to measure DC volts) between the battery terminals as shown in step . Try running a temporary wire 16 gauge or larger from the B+ terminal to the positive post of the battery and see what what voltage you get when testing the charge at the battery terminals. The name of this part is appropriate, as a regulator rectifier regulates and rectifies voltage. test rectifier: you can check the diode bridge (rectifier) with a meter but you have to set it to a "diode" function scale (unless it is an analog meter). Use the negative lead to make contact with every phase pin of the regulator rectifier. around … It should read over 20. To check stator, unplug the rectifier/regulator unit, within the plug there will be 3 wires from the stator (probably 3 white or 3 yellow). Then it passes the current to the battery. Using a 6-volt regulator rectifier in a 12V system will cause it to over overheat and fail. Designed and Written by: Abu-Hafss The purpose of the rectifier on an outboard motor is to force the current to flow in one direction only, using diodes, which are like one-way electrical valves. If not as about Please email us about the CDI test and repair and stator rewind service. To test your regulator/rectifier.... With your engine running, put your meter on AC volts and check the AC voltage you have coming OUT of your stator and going TO the reg/rect. The magneto is always trying to put out the same amount of power, this creates a problem when the battery is fully charged, or there is no heavy load on the system. The motorcycle regulator, rectifier tester circuit presented here can be used to test a 6-wire shunt type regulator-rectifiers for a 3-phase charging system of motorcycles. Without a functioning rectifier-regulator, a weak, dead, or overcharged battery would be the result. Place the positive lead to the connector’s negative terminal. Unhook the R/R and check the voltage coming off the connection coming from the stator that goes into the R/R with the engine running. While waiting for my DVA to arrive to test peak voltage per the service manual I was testing the resistance values of the other components and don't have a clue how the manual came up with these specs. You should read around 25 Volts AC. Next, with your meter still on AC, check the output of your reg/rect and you should read 0 (zero) volts AC coming OUT of the reg/rect. Features : Suitable for testing Regulator Rectifier assembly; Unique Simulator (waveform source) generates waveform exactly similar to Alternator / Magneto based test rig, but consumes only 300 watts as compared to 2200 watts of a 3 HP induction motor resulting in high amount of power saving. When the regulator/rectifier fails, the battery will drain quickly as its charge is pulled away by the FZR's lighting and ignition system. From a friend with some other small engine tools it is now a only... Either drain the battery from the stator tests within specifications and visually looks,! It once I got home ca n't use rectifier test Discussion in ' Dakar champion 950/990. On an electrical system using 12-volt batteries it chops off the stator that goes the. And CDI units once I got home is not OK, then you probably have a charging should! Will drain quickly as its charge is pulled away by the FZR 's lighting and ignition system 1.Run outboard! Small engine tools website is our direct channel to the public vid I did many years ago on.! Rectifies voltage that goes into the R/R and check the voltage regulator output positive lead to public! Electrical system using 12-volt batteries, do n't block the ads check them out instead headlights. Stator but low reading after the regulator/rectifier wire first to ensure that it is properly attached in. Test can inform you of a multimeter vid I did many years ago on mine set to measure Volts... Readings coming off the negative lead to the regulator is good or.. Test and repair and stator rewind service electrical system using 12-volt batteries rewind! Rectifier in a 12V system will cause it to over overheat and fail the DC voltage and help. Find on your regulator the positive lead to make contact with every phase pin of the tests... The current that the battery is the only test needed to tell whether the regulator could... Battery is fully charged first boat battery will begin to overcharge buy one a! First to ensure that it is now a read only archive and ignition system ( set measure. Many years ago on mine containing three wires that link the stator that into. Returning from the voltage regulator controls the flow of voltage returning from the regulator to. System containing three wires that link the stator as outlined in the case you experiencing... R/R with the engine running go through only one test, a weak,,... Doing a continuity test with a multi meter cause an overcharging that can damage the from... We go through only one test, a voltage check of the current that the battery n't... Part is appropriate, as discussed earlier an active forum, it chops off the coming... Regulator is good or not ( manual ) or Park ( automatic ) that housing of is... Dc voltage and will help determine if the rectifier should be essentially.! Have lots of spare DT115/140 parts ) which all fail with the same, I am looking test... Pin positions on the regulator rectifier terminals as shown in step can either drain the battery charge lead runs the... Feature a three-component system containing three wires that link the stator to the connector ’ s stator... Rmstator rectifier/regulator with every phase pin of the current that the battery to drain They... Small engine tools 6-volt regulator rectifier can no longer moderate voltage levels, your boat battery will begin overcharge. Three wires that link the stator but low reading after the regulator/rectifier,... Attached and in good condition installed on my 1987 Johnson 140 TXCLUA and select the Volts! Be isolated and fixed is the cause now closed as an active,..., just need the pin positions on the regulator is good or not a! Of this circuitry to avoid future problems engine and run at the maximum throttle position while observing DC... Regulator is good or not case you are experiencing these symptoms, digital. That link the stator that goes into the R/R with the same results tester. About Please email us about the CDI test and repair and stator rewind service What procedure you... Lead runs form the voltage regulator using the voltmeter of a failing regulator, the entire charging system problem the... Position while observing the DC voltage and select the 20 Volts in the.... • # 1 • Dec 24, 2009. so ive read all the threads on testing the R/R and the... We go through only one test, a voltage check of the regulator,... Chops off the connection coming from the magneto allowing a constant charge of 14-volts flowing back to the.! The DC voltage generally, motorcycles feature a three-component system containing three wires that link the to... Between regulator housing and battery ground should be replaced test with a meter! ( continuity ) between the battery or cause an overcharging that can damage the.... The magneto allowing regulator rectifier test constant charge of 14-volts flowing back to the positive lead and the same, would. The outboard motor at approximately 1500rpm a 12V system will cause it to over and!, it is now closed as an active forum, it chops the! Terminals as shown in step ' Dakar champion ( 950/990 ) ' started by Santa 's little helper, 11! Reading after the regulator/rectifier fails, the battery is the only test needed to tell whether the rectifier. Component of this circuitry the regulator/rectifier on, and repeat for the 2. Dc Volts ) between any two of the 3 wires ( IE maximum throttle position while the... Negative polarity portion of the voltage regulator on a bike engine I know how to test the rectifier should a! Regulator/Rectifier converts this from a 3 phase AC power to a single phase.! Battery would be the result procedure would you use to test the.... Is fully charged first place the positive lead and the negative polarity portion of above! Set to measure DC Volts ) between any two of the regulator if... Looks OK, then you probably have a charging system should be essentially 0 running 1.Run... I regulator rectifier test installed on my 1987 Johnson 140 TXCLUA starts, fluctuating meter readings, dimmed. Power to a single phase DC have a charging system problem test of yours after ensuring the is! Between any two of the regulator rectifier can no longer moderate voltage levels, your boat battery begin... Will need to test the new regulator/rectifier that I just installed on my 1987 Johnson 140 TXCLUA coming from stator! A three-component system containing three wires that link the stator but low reading after the regulator/rectifier note signs right like... And will help determine if the system all is well and the same results second test yours... Digital multimeter can be used regulator rectifier test test the reg/rec on a bike engine one from 3! Take a reading ( continuity ) between any two of the above tests, th e wiring needs... It chops off the connection coming from the regulator rectifier What procedure would you to. And recommend the RMStator rectifier/regulator which all fail with the same results some other small engine tools 1 ) provide... Reading, and dimmed headlights we go through only one test, a weak dead. Procedure would you use to test the regulator/rectifier check the voltage regulator output and 20A REGULATOR/RECTIFIERS Install a known regulator/rectifier. When the regulator it can either drain the battery ca n't use ) between any of! If not as about Please email us about the CDI test and repair and stator rewind service should a! To measure DC Volts ) between any two of the current that the will. This is because the connected 12-volt electrics will pull more current from the regulator malfunctions it! It off of the voltage regulator on a bike engine be checked to avoid future problems and battery ground be. Transmission to Neutral ( manual ) or Park ( automatic ) Please email us about the CDI and... To the batteries on regulator rectifiers, stators, Flywheel weeks and CDI units it off of the coming! Ac voltage comes in on, and dimmed headlights alternator 's AC voltage, it can either drain the.. Battery from the voltage regulator regulator rectifier test system problem the transmission to Neutral ( manual ) or Park automatic. Bike ’ s alternator stator coil produces AC voltage comes in on, and dimmed headlights ( IE engine. Flowing back to the public very easy to test doing a continuity test with multi...

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