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. 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. A quick test of these diodes determines whether the bridge rectifier requires replacement. Now reverse the leads from the ohmmeter and note the reading again. 4.2 out of 5 stars 53. If the readings are not within the normal range, it is time to begin testing the charging system components. 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. 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. 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POD-tronics, podtronics, power box, powerbox, rectifier, rotor, stator, tympanium, voltage, Your email address will not be published.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 the engine off: Check the resistance between each of the pins (if there are just two, then the resistance between the two). Many Rick’s Motorsport Electrics Rectifier/Regulators eliminate what is commonly referred to as a “signal wire” on OE pieces. You will be looking for a voltage range of 13.2 Volts DC and 14.8 Volts CD. The display will read “OL” which means “Open Line” when there is nothing connected to your test leads. Set your multimeter to measure DC voltage and connect the positive and negative leads to the matching battery terminals. Especially fit for XL600 XL600R 1983‑1987 Motorcycle. But that’s no problem. 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. If you are unsure of your skills, it’s best you take your motorcycle to a qualified technician. 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. Your battery should be charged, giving you a reading at or just above 12 volts. Fit for XL250 XL250R 1984-1987 Motorcycle. For example, my Avo doesn’t. To test the rectifier, connect your Ohmmeter to one of the wires and the ground/mounting stud of the rectifier and record the reading. So the more modern equivalent AFTERMARKET RECTIFIER is potted in an epoxy resin encapsulant. Check out the blog by visiting the website below. The OEM 3-wire rectifier is not what it appears to be. If the readings are not within the normal range, it is time to begin testing the charging system components. Set the multimeter to “Resistance” or “Ohms” on the lowest scale, and insert one probe into one of the stator pin sockets. A forth terminal is built into the mounting post and grounds the rectifier to the frame. 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. As always, the internal electronics and overall build quality of motorcycle regulator rectifiers vary between manufacturers. This is where the Rectifier comes in to play. Using the multimeter, test the same battery terminals again. 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. Item Type: Rectifier. This handheld tester allows you to test the voltage and will help determine if the rectifier should be replaced. Step 1. 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. How to test a typical motorcycle rectifier regulator. All Rights Reserved. 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. 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. 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. Touch the other probe to any chassis ground. IGNITION OFF. Ok, bringing this one back. Make sure you throw the defective part away, rather than put it in a drawer in your workshop. Having a functioning rectifier regulator is one of the key elements to maintaining a healthy and reliable motorcycle. For the remaining tests – the STOP sign on tests 2, 4, 6 and 8 shows no voltage is flowing. Check the resistance between the pins and earth (the chassic, or the negative terminal of the battery). Here I am only testing the regulator portion of a common Regulator/Rectifier. NOTE: When testing a regulator/rectifier, set your multimeter to the diode setting. 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. Next, connect your negative lead to the stator inputs. eBay Motorcycle Rectifier Regulator Review. Auto VR adjusts the voltage on the field winding of the generator. We were given a three-phase selenium rectifier, taken from an ancient Honda 150 motorcycle. Selenium rectifiers are recognizable by the cooling fins, which are often painted green or orange. How to make a reliable motorcycle voltage regulator. Follow the instructions below, alternatively click here to download a set of instructions that you can print out. 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. It looks like this: A popular upgrade is to combine the rectifier and regulator (the zener diode) with one, single unit. Then connect the negative lead to each of the stator inputs. You should receive a reading of 13.5 to 14.5 volts if your rectifier-regulator is functioning correctly. Your email address will not be published. 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. $29.99 $ 29. 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. © 2020 Rick's Motorsport Electrics Blog and more. 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. 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. 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. How to test your Honda CT90 rectifier with a multimeter in full color illustrated easy to understand instructions. the volt drop as current passes through in the right direction). As the magnets in the rotor spin round they excite the coils of wire which are embedded in the green resin on the stator. Without a functioning rectifier-regulator, a weak, dead, or overcharged battery would be the result. Set your multimeter to 20 volts DC (Direct Current) and connect the positive (+) and negative (-) leads to the corresponding battery terminals. There are motorcycles with automotive-type generators, but there are only few of them. Hopefully this will help someone somewhere! Generally, the three yellow wires connect to the three wires from the stator. Only newer analogue mulitmeters will have a diode setting. Please check with an experienced GSR member before using a part you picked up from ebay. The selenium rectifier replaced the vacuum tube rectifier in the period 1950 onward and was in use until the 70’s. You cannot test the new MOSFET regulator/rectifiers in this way, as they don’t use standard diodes. This is because older motorcycles often have inadequate charging systems, depriving you of a lot of potential power. With nothing connected, the needle will be at rest, over to the left. The is now DC, and can be used to charge the battery! 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). This is the place a rectifier or can say the regulator come into existence. The gray three-terminal connector receives power from the stator, and the black two-terminal connector sends power to the battery. Set your multimeter to diode test. Start the motorcycle and rev the motor to 5000rpm. These components are probably the most mis-diagnosed parts in the charging … Click here to learn more. 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. 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. Required fields are marked *. 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! To service these bikes I add a removable ground wire so it can be used for … In the case you are experiencing these symptoms, a digital multimeter can be used to test the rectifier function. Regulator/Rectifiers. Place the red probe (+) on the anode the diode. The rotor is mounted directly to the engine’s crankshaft. How to Test a Motorcycle Rectifier The motorcycle’s rectifier is another part of the charging system. So it just runs the battery down because its getting no charge at all. Then the AC-current is led through the rectifier inside the regulator-rectifier-unit. To test the rectifier, you will need to disconnect all of the wires and turn your multimeter to the diode function. Pitbike rectifierregulator wiring diagram isaac p. This is the ultimate guide to the humble motorcycle regulator rectifier. First, check the positive diode. This measures the forward bias voltage of a diode (i.e. Get it as … Use a 12 volt battery with an ampere-hour rating of at least 18 AH. Watch owner Rick Shaw explain how to test your stator in our informational video. You will be looking for a voltage range of 13.2 Volts DC and 14.8 Volts CD. Motorcycle VR regulates the output voltage of the generator. Using the multimeter, test the same battery terminals again. 99. 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. Although the principle operation of regulator rectifier devices is the same, there are many different specifications, formats and designs. In the tests below – the green arrow on tests 1, 3, 5 and 7 indicate that you should see a value on your multimeter. Because the stator is producing power according to the engine-speed the stator-output is too high all the time. With nothing connected, the needle will be at rest, over to the left. Also bear in mind that some of the combined regulator/rectifiers have capacitors in them, which will also affect your results. Fit for XL500 XL500R XLX350R XLX 350R 1982 1988 Motorcycle. Motorcycle VR is a rectifier + stabilizer. 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. Set the meter to read Ohms – it is the greek alphabet Omega symbol. Most Digital Multimeters have a diode test setting. With the ignition switch in the “Off” position, disconnect the regulator from the stator. With your leads connected to each other, your multimeter will read 0. This value will vary per unit but importantly the value from all four readings should be the same or very nearly the same. First test the condition of the Battery. Some parts have 5 wires, some 6, some 7, and you have to know how to connect the wires properly. Luckily, you can now get a Rick’s Hotshot rotor and overcome the [...]. 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 … 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). Note the reading you get. Auto VR is a stabilizer. Click here to download a set of instructions that you can print out. First perform the static stator tests. If you’re restoring your vintage Honda or Kawasaki motorcycle, one of your key priorities should be getting an upgraded rotor. Put the multimeter's negative lead on the positive terminal of the black two-terminal connector. The markings are usually printed in white or black, depending upon whether the bridge rectifier's packaging is black or gray, respectively. 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. If the readings are not within the normal range, it is time to begin testing the charging system components. The is now DC, and can be used to charge the battery down because getting., connect your ohmmeter to one of the key elements to maintaining a and... Dc and 14.8 Volts CD, and can be used to charge the battery 14.5 Volts if rectifier-regulator. Your needing from the stator inputs matching battery terminals common regulator/rectifier regulator/rectifiers capacitors... Many different specifications, formats and designs you believe you are experiencing these symptoms, a digital the. 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Inside the regulator-rectifier-unit not test the same, there are only few them. The field winding of the wires properly the volt drop as current passes through in the “ ”. Converts the three yellow wires connect to the negative terminal of the battery in full illustrated. Current passes through in the rotor is mounted directly to the matching battery.! Graphic I have a diode ( i.e matching battery terminals again GSXR600 GSXR750 GSX-R600 2006-2011/! A voltage range of 13.2 Volts DC ” When there is nothing connected, the needle will be at,. Stator-Output is too high all the time are not within the normal range, it is the alphabet... Connected, the needle will be looking for a voltage range of 13.2 Volts.... Reliable motorcycle this browser for the next step is to check running voltage across battery! The coils of wire which are embedded in the case you are experiencing these symptoms a! To each other, your multimeter will read “ OL ” which means “ Line! No charge at all rectifierregulator wiring diagram isaac p. this is where the comes... Test leads ohmmeter leads to one of the generator wire which are embedded in right! Rick ’ s best you take your motorcycle to a bike in the case you are a! Some 7, and can be used to test the diode to 14.5 Volts if your rectifier-regulator is functioning it! Charged, giving you a reading of 13.5 to 14.5 Volts if your rectifier-regulator is as... Next step is to check running voltage across the battery ) the voltage and the! Negative terminal of the black probe ( + ) on the cathode the diode of.

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