The rectifier regulator converts AC power to DC allowing the alternator to charge the battery, and controls the amount of power delivered to the battery. Place the black probe (-) on the cathode the diode. Here is a picture of a Lucas alternator rotor (the magnetic bit in the middle) and stator (the bit round the outside with the wires coming out of it). The AFTERMARKET REGULATOR/RECTIFIER looks something like this: There are some new types of regulator/rectifiers that can not be tested simply, because they contain microchips and specialist circuitry inside them. WANT MORE? Using the multimeter, test the same battery terminals again. Auto VR is a stabilizer. You shouldn’t see any readings on the meter yet. Now reverse the leads from the ohmmeter and note the reading again. There are motorcycles with automotive-type generators, but there are only few of them. 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. Get it as … Set the multimeter to “Resistance” or “Ohms” on the lowest scale, and insert one probe into one of the stator pin sockets. This is where the Rectifier comes in to play. Auto VR adjusts the voltage on the field winding of the generator. 4.2 out of 5 stars 53. Motorcycle VR is a rectifier + stabilizer. $29.99 $ 29. FTRT Motorcycle Regulator Rectifier Compatible with Suzuki GSXR600 GSXR750 GSX-R600 GSX-R750 2006-2011/ Suzuki GSXR1000 GSX-R1000 2005-2012/ Suzuki DL650 2004-2012/ Suzuki SV650 2003-2012. In the tests below – the green arrow on tests 1, 3, 5 and 7 indicate that you should see a value on your multimeter. Especially fit for XL600 XL600R 1983‑1987 Motorcycle. Ricks Motorsport Electrics offers the industry’s most reliable OEM rectifier-regulators, including a full line uniquely designed to also work with lithium ion batteries. The exact reading is not all that important, but there should be a … You should receive a reading of 13.5 to 14.5 volts if your rectifier-regulator is functioning correctly. The rotor is mounted directly to the engine’s crankshaft. Only newer analogue mulitmeters will have a diode setting. eBay Motorcycle Rectifier Regulator Review. AC is fine for making a lightbulb glow, however in order for it to be used to charge a battery, it needs to be converted into DC instead. A quick test of these diodes determines whether the bridge rectifier requires replacement. This value will vary per unit but importantly the value from all four readings should be the same or very nearly the same. Many Rick’s Motorsport Electrics Rectifier/Regulators eliminate what is commonly referred to as a “signal wire” on OE pieces. If you are not seeing the desired values on just one of these tests, it means that you have a malfunctioning component (diode) within the rectifier. Then connect the negative lead to each of the stator inputs. As always, the internal electronics and overall build quality of motorcycle regulator rectifiers vary between manufacturers. Unfortunately, these are not user serviceable or repairable, so you need to replace it. A Rectifier is the part of the charging system that convert the AC voltage from the alternator into DC voltage which can be used to charge the battery. If you believe you are qualified to proceed, then the next step is to check running voltage across the battery. IGNITION OFF. Start the motorcycle and rev the motor to 5000rpm. Fit for XL250 XL250R 1984-1987 Motorcycle. Here I am only testing the regulator portion of a common Regulator/Rectifier. Follow the instructions below, alternatively click here to download a set of instructions that you can print out. With your test leads connected to each other, the needle will be at the opposite end of the scale resting on the stop – reading 1. Having a functioning rectifier regulator is one of the key elements to maintaining a healthy and reliable motorcycle. Ricks Motorsport Electrics offers the industry’s most reliable OEM rectifier-regulators, including a full line uniquely designed to also work with lithium ion batteries. These components are probably the most mis-diagnosed parts in the charging … This will make sure it doesn’t find it’s way back on to a bike in the future!!! There are two connectors on the regulator/rectifier. You could also perform some basic postmortem checks on the regulator/rectifier itself, and attempt to determine what has failed, internally if you have the necessary test equipment. How to test your Honda CT90 rectifier with a multimeter in full color illustrated easy to understand instructions. Please check with an experienced GSR member before using a part you picked up from ebay. Selenium rectifiers are recognizable by the cooling fins, which are often painted green or orange. Motorcycle Regulator Rectifier Connectors Regulator and rectifer, generator and stator wiring connector plugs that are used on older and modern Japanese motorcycles using the unsealed 6.0mm and 6.3mm terminals to the modern Honda, Suzuki,Kawasaki and Yamaha that use the sealed type connectors. Identify the markings on the bridge rectifier. © 2020 Rick's Motorsport Electrics Blog and more. So all I need is the numbers to what the combo reg/rec should test with a multimeter, but I cant seem to find them. Ok, bringing this one back. With your test leads connected to each other, the needle will be at the opposite end of the scale resting on the stop – reading 1. Set your multimeter to 20 volts DC (Direct Current) and connect the positive (+) and negative (-) leads to the corresponding battery terminals. The selenium rectifier replaced the vacuum tube rectifier in the period 1950 onward and was in use until the 70’s. Hopefully this will help someone somewhere! The gray three-terminal connector receives power from the stator, and the black two-terminal connector sends power to the battery. Step 1. To test the rectifier, connect your Ohmmeter to one of the wires and the ground/mounting stud of the rectifier and record the reading. Without a functioning rectifier-regulator, a weak, dead, or overcharged battery would be the result. Click here to learn more. The display will read “OL” which means “Open Line” when there is nothing connected to your test leads. Your battery should be charged, giving you a reading at or just above 12 volts. Regulator rectifier diagram here you are at our site this is images about regulator rectifier diagram posted by maria nieto in wiring category on may 08 2019. For example, on a 1981 Kawasaki KZ440, there are 5 wires going to the OE part: 2 yellow wires (AC inputs), white/red (DC “+” output), black/yellow (DC “-“ output), and a brown wire. In the case you are experiencing these symptoms, a digital multimeter can be used to test the rectifier function. Although the principle operation of regulator rectifier devices is the same, there are many different specifications, formats and designs. So it just runs the battery down because its getting no charge at all. The regulator side is not part of these tests – you should monitor the output across positive and negative cables when the reg/rec is connected to a fully charged battery. Set your multimeter to diode test. With your leads connected to each other, your multimeter will read 0. Motorcycle VR regulates the output voltage of the generator. Pitbike rectifierregulator wiring diagram isaac p. This is the ultimate guide to the humble motorcycle regulator rectifier. The is now DC, and can be used to charge the battery! graphic I have a SHB Rectifier module with 5 spade terminal lugs coming out of the module. Some parts have 5 wires, some 6, some 7, and you have to know how to connect the wires properly. Here is the testing procedure as printed in the 1970 onwards Norton Commando Workshop Manual: I don’t think their description of the test procedure is particularly clear. Types of Motorcycle Regulator/Rectifiers There are two main types of alternator that are fitted to most motorcycles, each requiring a different type of regulator rectifier. For the remaining tests – the STOP sign on tests 2, 4, 6 and 8 shows no voltage is flowing. You will be looking for a voltage range of 13.2 Volts DC and 14.8 Volts CD. With the ignition switch in the “Off” position, disconnect the regulator from the stator. Connect. Set your multimeter to measure DC voltage and connect the positive and negative leads to the matching battery terminals. You should produce a set of 8 numbers – follow the process below, and write the numbers down as you go, so you don’t lose track. See if this is the information your needing from the wire diagrams on this honda engine. Make sure you throw the defective part away, rather than put it in a drawer in your workshop. Also bear in mind that some of the combined regulator/rectifiers have capacitors in them, which will also affect your results. We were given a three-phase selenium rectifier, taken from an ancient Honda 150 motorcycle. With the engine off: Check the resistance between each of the pins (if there are just two, then the resistance between the two). So the more modern equivalent AFTERMARKET RECTIFIER is potted in an epoxy resin encapsulant. Check the resistance between the pins and earth (the chassic, or the negative terminal of the battery). 99. If you are unsure of your skills, it’s best you take your motorcycle to a qualified technician. As the magnets in the rotor spin round they excite the coils of wire which are embedded in the green resin on the stator. Generally, the three yellow wires connect to the three wires from the stator. We have expanded our line of aftermarket dirt and off road stators including for Honda stators, Yamaha stators, Suzuki stators and stators for KTM applications. It is important that you exercise caution when testing the voltage to avoid being shocked and you should know the basic safety requirements for working with electric systems. This is the place a rectifier or can say the regulator come into existence. Regulator/Rectifiers. First perform the static stator tests. The ground wire should get connected directly to the negative battery terminal. How to make a reliable motorcycle voltage regulator. Note the reading you get. Most Digital Multimeters have a diode test setting. You cannot test the new MOSFET regulator/rectifiers in this way, as they don’t use standard diodes. the volt drop as current passes through in the right direction). If the readings are not within the normal range, it is time to begin testing the charging system components. But that’s no problem. However, most of the regulator/rectifiers in the market (examples include Podtronics, Boyer Bransden Power Box and Tympanium) are simple and easy to test. Using the multimeter, test the same battery terminals again. If you are seeing lower readings, that implies that there is a failure in your charging system and the rec/reg may be the culprit. The “Full Wave Bridge Rectifier” to give it the correct name uses four diodes which basically takes everything below the green line, flips it, and puts it above the line! The ORIGINAL RECTIFIER looks something like this: The diodes on the original units were prone to rattling off, due to the vibrations on cars and bikes. Check out the blog by visiting the website below. To determine that the regulator/rectifier is working properly, it's necessary to test each of its diodes. To service these bikes I add a removable ground wire so it can be used for … If it’s higher, operating the motorcycle could be causing damage to your battery as well as any voltage-sensitive electronics on the vehicle. As electricity is produced, the rectifier which type of electrical current get to the battery to charge it. It looks like this: A popular upgrade is to combine the rectifier and regulator (the zener diode) with one, single unit. Item Type: Rectifier. With nothing connected, the needle will be at rest, over to the left. To test the rectifier, hook up the ohmmeter leads to one of the wires and to the ground (mounting) stud. To test the rectifier, you will need to disconnect all of the wires and turn your multimeter to the diode function. First, check the positive diode. The markings are usually printed in white or black, depending upon whether the bridge rectifier's packaging is black or gray, respectively. Total failure All of the parts share a common ground or hot connection; if the unit tests out totally dead, then this internal connection could have failed. The OEM 3-wire rectifier is not what it appears to be. You should receive a reading of 13.5 to 14.5 volts if your rectifier-regulator is functioning correctly. This rectifier is for the bikes with a 3-wire rectifier. Fit for XL600 XL600R 1983-1987 Motorcycle. If you are running a combined regulator/rectifier, remember that this test procedure only confirms that the rectifier package is functioning as it should. To do this, place the positive lead into the positive diode. Your email address will not be published. I suspect I have a bad Regulator/Rectifier unit as I am getting A/C from the alternator into the unit but when rev'd I get nothing out. This measures the forward bias voltage of a diode (i.e. This handheld tester allows you to test the voltage and will help determine if the rectifier should be replaced. First test the condition of the Battery. This is because older motorcycles often have inadequate charging systems, depriving you of a lot of potential power. Fit for XL500 XL500R XLX350R XLX 350R 1982 1988 Motorcycle. Use a 12 volt battery with an ampere-hour rating of at least 18 AH. Required fields are marked *. Click here to download a set of instructions that you can print out. If the readings are not within the normal range, it is time to begin testing the charging system components. In this piece of writing, we will try to address “what does a rectifier do to a motorcycle?” We will try to understand the underlying working of the rectifier and how it is responsible for providing DC power to … So i have done my best below to make it easier to understand. Next, connect your negative lead to the stator inputs. For example, my Avo doesn’t. Your battery should be charged, giving you a reading of approximately 12.5-12.9 volts DC (check your particular battery’s specifications for exact numbers). Most modern multi-meters come with a diode test function. 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. All Rights Reserved. How to Test a Motorcycle Rectifier The motorcycle’s rectifier is another part of the charging system. Rick's Motorsport Electrics Blog and more, Latest Barn Find: Suzuki GS1000S Wes Cooley Replica, 3 Things You Can Do With a Vintage Motorcycle, Ricks motorcycle Safety Tips + the Top Tips from Our Customers, How to Start a Snowmobile That Has Been Sitting. Luckily, you can now get a Rick’s Hotshot rotor and overcome the [...]. NOTE: When testing a regulator/rectifier, set your multimeter to the diode setting. Regulator/Rectifier Test #1: Forward Bias of Positive Circuit Diodes. If the readings are not within the normal range, it is time to begin testing the charging system components. A forth terminal is built into the mounting post and grounds the rectifier to the frame. Place the red probe (+) on the anode the diode. If you have a factory original rectifier, make sure you have a new battery in your multimeter – the diodes are chunkier than on the modern equivalents. Touch the other probe to any chassis ground. You will be looking for a voltage range of 13.2 Volts DC and 14.8 Volts CD. How to Test a Motorcycle Rectifier using a digital multimeter The multimeter should be set to Volts DC. Tagged as: 49072, AC, alternator, boyer bransden, boyer power box, DC, LU49072, lucas, lucas 49072, POD-tronics, podtronics, power box, powerbox, rectifier, rotor, stator, tympanium, voltage, Your email address will not be published. With nothing connected, the needle will be at rest, over to the left. Put the multimeter's negative lead on the positive terminal of the black two-terminal connector. Save my name, email, and website in this browser for the next time I comment. Set the meter to read Ohms – it is the greek alphabet Omega symbol. Then the AC-current is led through the rectifier inside the regulator-rectifier-unit. How to test a typical motorcycle rectifier regulator. The rectifier converts the three AC-phases to a single 14.4 Vdc output, a ground and a positive. The multimeter should be set to Volts DC. Watch owner Rick Shaw explain how to test your stator in our informational video. Because the stator is producing power according to the engine-speed the stator-output is too high all the time. With the Battery on the bike and connected … If you’re restoring your vintage Honda or Kawasaki motorcycle, one of your key priorities should be getting an upgraded rotor. You can only test the diode function of your rec/reg. 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Fins, which are embedded in the green resin on the field winding of the stator, and in. Charge at all ( the chassic, or the negative terminal of the module some 7 and. Test leads to the diode receive a reading at or just above Volts! And a positive unsure of your how to test a motorcycle rectifier multimeter to the humble motorcycle regulator rectifier regulator rectifier be,! An ancient Honda 150 motorcycle of the wires properly across the battery down because its getting no charge all. Can only test the rectifier inside the regulator-rectifier-unit always, the three yellow wires connect to the battery because! Your Honda CT90 rectifier with a 3-wire rectifier is not what it appears to be up ebay... Rectifier, taken from an ancient Honda 150 motorcycle 12 volt battery with an ampere-hour rating of at 18...