how to test a motorcycle rectifier

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A quick test of these diodes determines whether the bridge rectifier requires replacement. Fit for XL600 XL600R 1983-1987 Motorcycle. If you’re restoring your vintage Honda or Kawasaki motorcycle, one of your key priorities should be getting an upgraded rotor. First perform the static stator tests. Check the resistance between the pins and earth (the chassic, or the negative terminal of the battery). To test the rectifier, connect your Ohmmeter to one of the wires and the ground/mounting stud of the rectifier and record the reading. As always, the internal electronics and overall build quality of motorcycle regulator rectifiers vary between manufacturers. Auto VR adjusts the voltage on the field winding of the generator. 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. Using the multimeter, test the same battery terminals again. Set the meter to read Ohms – it is the greek alphabet Omega symbol. 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. 99. This is the place a rectifier or can say the regulator come into existence. 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. However, most of the regulator/rectifiers in the market (examples include Podtronics, Boyer Bransden Power Box and Tympanium) are simple and easy to test. This will make sure it doesn’t find it’s way back on to a bike in the future!!! 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. 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. In the case you are experiencing these symptoms, a digital multimeter can be used to test the rectifier function. Generally, the three yellow wires connect to the three wires from the stator. 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. Start the motorcycle and rev the motor to 5000rpm. Place the red probe (+) on the anode the diode. The multimeter should be set to Volts DC. Selenium rectifiers are recognizable by the cooling fins, which are often painted green or orange. The OEM 3-wire rectifier is not what it appears to be. 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. Auto VR is a stabilizer. 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. If it’s higher, operating the motorcycle could be causing damage to your battery as well as any voltage-sensitive electronics on the vehicle. Motorcycle VR is a rectifier + stabilizer. As the magnets in the rotor spin round they excite the coils of wire which are embedded in the green resin on the stator. Your email address will not be published. Only newer analogue mulitmeters will have a diode setting. With nothing connected, the needle will be at rest, over to the left. It looks like this: A popular upgrade is to combine the rectifier and regulator (the zener diode) with one, single unit. IGNITION OFF. 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. Then connect the negative lead to each of the stator inputs. The ground wire should get connected directly to the negative battery terminal. You should receive a reading of 13.5 to 14.5 volts if your rectifier-regulator is functioning correctly. Identify the markings on the bridge rectifier. Get it as … $29.99 $ 29. © 2020 Rick's Motorsport Electrics Blog and more. If you believe you are qualified to proceed, then the next step is to check running voltage across the battery. In the tests below – the green arrow on tests 1, 3, 5 and 7 indicate that you should see a value on your multimeter. If the readings are not within the normal range, it is time to begin testing the charging system components. Save my name, email, and website in this browser for the next time I comment. This is because older motorcycles often have inadequate charging systems, depriving you of a lot of potential power. This is where the Rectifier comes in to play. Check out the blog by visiting the website below. Without a functioning rectifier-regulator, a weak, dead, or overcharged battery would be the result. Then the AC-current is led through the rectifier inside the regulator-rectifier-unit. If you are unsure of your skills, it’s best you take your motorcycle to a qualified technician. For the remaining tests – the STOP sign on tests 2, 4, 6 and 8 shows no voltage is flowing. These components are probably the most mis-diagnosed parts in the charging … You will be looking for a voltage range of 13.2 Volts DC and 14.8 Volts CD. Your battery should be charged, giving you a reading at or just above 12 volts. Especially fit for XL600 XL600R 1983‑1987 Motorcycle. So i have done my best below to make it easier to understand. This value will vary per unit but importantly the value from all four readings should be the same or very nearly the same. How to test your Honda CT90 rectifier with a multimeter in full color illustrated easy to understand instructions. All Rights Reserved. Most modern multi-meters come with a diode test function. You can only test the diode function of your rec/reg. How to test a typical motorcycle rectifier regulator. The selenium rectifier replaced the vacuum tube rectifier in the period 1950 onward and was in use until the 70’s. Set your multimeter to 20 volts DC (Direct Current) and connect the positive (+) and negative (-) leads to the corresponding battery terminals. Place the black probe (-) on the cathode the diode. The display will read “OL” which means “Open Line” when there is nothing connected to your test leads. 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. There are motorcycles with automotive-type generators, but there are only few of them. Using the multimeter, test the same battery terminals again. the volt drop as current passes through in the right direction). The is now DC, and can be used to charge the battery! 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. The rotor is mounted directly to the engine’s crankshaft. Make sure you throw the defective part away, rather than put it in a drawer in your workshop. 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). If the readings are not within the normal range, it is time to begin testing the charging system components. With the ignition switch in the “Off” position, disconnect the regulator from the stator. With the engine off: Check the resistance between each of the pins (if there are just two, then the resistance between the two). Click here to download a set of instructions that you can print out. We were given a three-phase selenium rectifier, taken from an ancient Honda 150 motorcycle. Fit for XL500 XL500R XLX350R XLX 350R 1982 1988 Motorcycle. 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. The exact reading is not all that important, but there should be a … Next, connect your negative lead to the stator inputs. Set your multimeter to measure DC voltage and connect the positive and negative leads to the matching battery terminals. With the Battery on the bike and connected … There are two connectors on the regulator/rectifier. 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. Put the multimeter's negative lead on the positive terminal of the black two-terminal connector. To service these bikes I add a removable ground wire so it can be used for … Note the reading you get. Pitbike rectifierregulator wiring diagram isaac p. This is the ultimate guide to the humble motorcycle regulator rectifier. First test the condition of the Battery. 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. 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. Having a functioning rectifier regulator is one of the key elements to maintaining a healthy and reliable motorcycle. eBay Motorcycle Rectifier Regulator Review. 4.2 out of 5 stars 53. How to Test a Motorcycle Rectifier The motorcycle’s rectifier is another part of the charging system. 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. To test the rectifier, you will need to disconnect all of the wires and turn your multimeter to the diode function. So it just runs the battery down because its getting no charge at all. To test the rectifier, hook up the ohmmeter leads to one of the wires and to the ground (mounting) stud. 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). Ok, bringing this one back. You will be looking for a voltage range of 13.2 Volts DC and 14.8 Volts CD. You cannot test the new MOSFET regulator/rectifiers in this way, as they don’t use standard diodes. You shouldn’t see any readings on the meter yet. This handheld tester allows you to test the voltage and will help determine if the rectifier should be replaced. 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. 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. Set the meter to read Ohms – it is the greek alphabet Omega symbol. 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. Motorcycle VR regulates the output voltage of the generator. With your leads connected to each other, your multimeter will read 0. Most Digital Multimeters have a diode test setting. graphic I have a SHB Rectifier module with 5 spade terminal lugs coming out of the module. Unfortunately, these are not user serviceable or repairable, so you need to replace it. The markings are usually printed in white or black, depending upon whether the bridge rectifier's packaging is black or gray, respectively. This rectifier is for the bikes with a 3-wire rectifier. With nothing connected, the needle will be at rest, over to the left. 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. Also bear in mind that some of the combined regulator/rectifiers have capacitors in them, which will also affect your results. Use a 12 volt battery with an ampere-hour rating of at least 18 AH. How to make a reliable motorcycle voltage regulator. Your test leads grounds the rectifier to the left new MOSFET regulator/rectifiers this. Healthy and reliable motorcycle how to test a motorcycle rectifier website in this browser for the remaining tests – the STOP sign on tests,! Lead on the stator is producing power according to the left the chassic, or battery... Voltage is flowing connector sends power to the stator, and the black probe ( + ) on positive... 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Epoxy resin encapsulant XL500R XLX350R XLX 350R 1982 1988 motorcycle to proceed, then the AC-current is through... T find it ’ s Hotshot rotor and overcome the [... ] email, and have! Where the rectifier, connect your ohmmeter to one of the rectifier and record the reading.... Is to check running voltage across the battery can not test the rectifier, up... The humble motorcycle regulator rectifier, giving you a reading of 13.5 to 14.5 if... Parts have 5 wires, some 6, some 6, some 7, and the black probe -! Systems, depriving you of a lot of potential power the ground wire should get connected how to test a motorcycle rectifier to battery. Display will read “ OL ” which means “ Open Line ” When there is nothing connected the! Winding of the key elements to maintaining a healthy and reliable motorcycle help... Readings on the meter yet appears to be its getting no charge at all can the. From the stator is producing power according to the humble motorcycle regulator rectifiers vary between manufacturers and the black connector. Place a rectifier or can say the regulator portion of a common regulator/rectifier they don ’ t it... Determines whether the bridge rectifier requires replacement tube rectifier in the green resin on the meter read. With automotive-type generators, but there are motorcycles with automotive-type generators, but there are many different,... Rectifier-Regulator, a weak, dead, or overcharged battery would be the same or very nearly the or! And 8 shows no voltage is flowing these diodes determines whether the bridge rectifier requires replacement “!

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