The markings are usually printed in white or black, depending upon whether the bridge rectifier's packaging is black or gray, respectively. 4.2 out of 5 stars 53. 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 the readings are not within the normal range, it is time to begin testing the charging system components. Generally, the three yellow wires connect to the three wires from the stator. So the more modern equivalent AFTERMARKET RECTIFIER is potted in an epoxy resin encapsulant. The display will read “OL” which means “Open Line” when there is nothing connected to your test leads. Set the meter to read Ohms – it is the greek alphabet Omega symbol. This rectifier is for the bikes with a 3-wire rectifier. 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. With nothing connected, the needle will be at rest, over to the left. The exact reading is not all that important, but there should be a … To do this, place the positive lead into the positive diode. This is because older motorcycles often have inadequate charging systems, depriving you of a lot of potential power. 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). Using the multimeter, test the same battery terminals again. This will make sure it doesn’t find it’s way back on to a bike in the future!!! 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. A quick test of these diodes determines whether the bridge rectifier requires replacement. You will be looking for a voltage range of 13.2 Volts DC and 14.8 Volts CD. With nothing connected, the needle will be at rest, over to the left. 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! Get it as … Motorcycle VR is a rectifier + stabilizer. This measures the forward bias voltage of a diode (i.e. But that’s no problem. Please check with an experienced GSR member before using a part you picked up from ebay. In the tests below – the green arrow on tests 1, 3, 5 and 7 indicate that you should see a value on your multimeter. We were given a three-phase selenium rectifier, taken from an ancient Honda 150 motorcycle. You can only test the diode function of your rec/reg. Set your multimeter to 20 volts DC (Direct Current) and connect the positive (+) and negative (-) leads to the corresponding battery terminals. 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. These components are probably the most mis-diagnosed parts in the charging … 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. 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). graphic I have a SHB Rectifier module with 5 spade terminal lugs coming out of the module. Set the meter to read Ohms – it is the greek alphabet Omega symbol. Most modern multi-meters come with a diode test function. Check out the blog by visiting the website below. Use a 12 volt battery with an ampere-hour rating of at least 18 AH. The multimeter should be set to Volts DC. First perform the static stator tests. Check the resistance between the pins and earth (the chassic, or the negative terminal of the battery). Especially fit for XL600 XL600R 1983‑1987 Motorcycle. All Rights Reserved. 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. Place the black probe (-) on the cathode the diode. Put the multimeter's negative lead on the positive terminal of the black two-terminal connector. This handheld tester allows you to test the voltage and will help determine if the rectifier should be replaced. 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. Identify the markings on the bridge rectifier. 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. Regulator/Rectifiers. 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. Now reverse the leads from the ohmmeter and note the reading again. 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. 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. Your battery should be charged, giving you a reading at or just above 12 volts. First test the condition of the Battery. How to Test a Motorcycle Rectifier using a digital multimeter The multimeter should be set to Volts DC. You shouldn’t see any readings on the meter yet. In the case you are experiencing these symptoms, a digital multimeter can be used to test the rectifier function. 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. However, most of the regulator/rectifiers in the market (examples include Podtronics, Boyer Bransden Power Box and Tympanium) are simple and easy to test. How to make a reliable motorcycle voltage regulator. If you are unsure of your skills, it’s best you take your motorcycle to a qualified technician. With the ignition switch in the “Off” position, disconnect the regulator from the stator. The is now DC, and can be used to charge the battery! With the engine off: Check the resistance between each of the pins (if there are just two, then the resistance between the two). Some parts have 5 wires, some 6, some 7, and you have to know how to connect the wires properly. Next, connect your negative lead to the stator inputs. First, check the positive diode. 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. Make sure you throw the defective part away, rather than put it in a drawer in your workshop. Hopefully this will help someone somewhere! To service these bikes I add a removable ground wire so it can be used for … To test the rectifier, you will need to disconnect all of the wires and turn your multimeter to the diode function. Your email address will not be published. To test the rectifier, hook up the ohmmeter leads to one of the wires and to the ground (mounting) stud. A forth terminal is built into the mounting post and grounds the rectifier to the frame. Fit for XL500 XL500R XLX350R XLX 350R 1982 1988 Motorcycle. 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. If you are running a combined regulator/rectifier, remember that this test procedure only confirms that the rectifier package is functioning as it should. For the remaining tests – the STOP sign on tests 2, 4, 6 and 8 shows no voltage is flowing. The rectifier converts the three AC-phases to a single 14.4 Vdc output, a ground and a positive. 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 are seeing lower readings, that implies that there is a failure in your charging system and the rec/reg may be the culprit. The OEM 3-wire rectifier is not what it appears to be. Pitbike rectifierregulator wiring diagram isaac p. This is the ultimate guide to the humble motorcycle regulator rectifier. It looks like this: A popular upgrade is to combine the rectifier and regulator (the zener diode) with one, single unit. Only newer analogue mulitmeters will have a diode setting. the volt drop as current passes through in the right direction). Connect. As the magnets in the rotor spin round they excite the coils of wire which are embedded in the green resin on the stator. 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. Also bear in mind that some of the combined regulator/rectifiers have capacitors in them, which will also affect your results. If the readings are not within the normal range, it is time to begin testing the charging system components. How to Test a Motorcycle Rectifier The motorcycle’s rectifier is another part of the charging system. Power to the diode function of your skills, it is the greek alphabet Omega symbol AC-current is led the... 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