cb750 voltage regulator test

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And it worked but I guess I'll have to update to solid state regulator. Yes the are hook up right. My question above was ment how does a conventional or H4 lamp react when the engine is revved. What does the headlight do for reaction when you rev the engine? Reason I ask: some non-automotive DMMs give funny readings. One for when the output is low, and a different one for when it output is not low but the battery keeps going dead. 3 yellows from the stator, 1 to the batt + and 1 to batt -(or chassis ground) is how it should be, just like the cbr. Figure Generator Regulator Removal Adjustment And Test Wiring Tm 20to â¦ In the process of testing this setup for the '80 to '84 models I modified my bike as above and installed the regulator. The rectifier actually converts the power from AC to DC, while the regulator keeps the power level (voltage) from going above the 13.8 -14.5 volts needed to power a standard 12 volt battery. When it's under load I'm only getting about 12.4 volts across it so I'm starting to investigate where the problem might be. If you put back the stock headlight maybe it would behave normally. Anonymous. Charging voltage of my CB750 K2 is jumping from 12V to 15V, measured from the battery terminals. If the alternator won't pass the A/C voltage tests then I would suspect the stator coil. There are tests to check the A/C voltage output of the coil that will help eliminate the regulator and/or rectifier as the source of the problem. + pos to starter and - to ground. the CB750 automatic. It needs that load ( amperage ) passing thru' the reg. Go to the auto parts store like advanced auto, or auto zone (i got mine at advanced) and go by all the testers and there will be a little tester thats 1 inch by about 7 inches and it has a positive lead and a negitave lead, it test battery volts and alternator or in our case stator votls. Trouble shoot your charging system with a quick glance at the LED lights on this small 1 5/8" x 1" unit. Measure the battery’s specific gravity as described in Chapter Three. If this test shows continuity to ground, then the unit is bad. I stand behind my parts 100%.. Hopefully I'll find some time today and check the charging system first with conventional H4 bulb. 10 volts at idle. Any problems with the rotor will cause a loss of output. The gaps are correctly set. I have a short in a 1994 Harley 1200.Need to find out how to test the voltage regulator and the stator. Relevance. Many modern gasoline engines do not employ a traditional distributor but, instead, have either a coil on each spark plug or a coil pack that … None of the yellow wires are shorting to ground. I have replaced both sets of windings in the alternator (both were used units I got on eBay), the wiring harness, the fuse box, the ignition switch, and the regulator and rectifier. Also do not let it run long like this. Then the wire from either the breaker points or the ignition module goes to coil (-). ... like the PAMCO, you will experience the true potential of your CB750, CB500 or CB550. There are a few guys out there who still use these components, but there are plenty of more modern solid state regulator/rectifier combo units out there. how do i test voltage regulator on a cb750 k? Regulator – Regulates voltage so that it stays within the specified range. I finally found the time to dig into this problem properly. CB750.com is dedicated to the Honda CB750 SOHC and DOHC motorcycles and to their owners who love to ride, ... What kind of A/C voltage readings did you observe? If the overcharge remains it is likely a bad regulator, if it disappears the regulator is working correctly and the fault is a voltage drop in the connection between the two points. To obtain accurate test results, the battery must be fully charged with a specific gravity reading above 1.270. I have opened up the regulator a few years ago and I can't remember if those points were misaligned then. Aftermarket Honda Regulator Rectifier | OEM Style Honda â¦ This modern voltage regulator / rectifier combo is a single unit that replaces both factory parts. Everything I can find lists the cb750 as a 5 wire unit reg/rec. The Dyna Charge Monitor is a valuable addition to vehicles with a battery ignition and a charge system as found on nearly all stock vehicles. After a moment voltage comes gradually back to 14,5V and stays there. ", CB 750 K0 ( always thought it was a K1!) it also has a little magnet so you can put it on a tank, I believe … I switched to LED for more brightness. CB750 Voltage Regulator Adjustment.jpg (659.04 kB, 1873x2061 - viewed 44 times.) - If the alternator starts charging, the regulator is likely the problem. Got it figured out! The charging system voltage gradually drops off as the engine heats up. Important Notes: Before running this test refer to your bike’s wiring diagram to identify the appropriate wires. Fits: All Honda CB750's (1969-1978) with 7/8" bars Part #: 24-2660 USD$25.95 ea … The contact points are misaligned by half of their diameter.. The regulator is ... hello and welcome unplug the regulator/rectifier. My 1978 Honda CB750 bike is not charging. Turn out that the previous owner conected the wrong way the regulator terminals with the black, white and green wires and fried it! I had the same issue. The field coil tests at 8.2 Ohms no short to ground, the manual says it should be at 7.2 does that make it bad, some have said no. Part of what concerned me about the description of the symptoms is the fact that as RPM rose, the voltage would increase to max, then fall to min, then rise back to max again. it also has a little magnet so you can put it on a tank, I believe that for the alternator you have to be atleast above 2,000 rpm's to get the charging system to work. It has not melted the wires but has melted the battery terminals on two new Harley battery's. Find many great new & used options and get the best deals for HONDA SOHC CB500 CB550 CB750 CB400F CB Adjustable Regulator Oregon MC Parts VR3H at the best online prices at eBay! CB700 VFR700 CB750 VFR750 Regulator Rectifier: Displaying 1 to 60 (of 116 products) Result Pages: 1 2 1980-1982 Honda CB750C CB 750C Custom Regulator Rectifier $89.99 1981-1982 Honda CB750C Custom Regulator Rectifier $98.99 1981 ... 1983-1985 Honda VT700 Shadow Voltage Regulator $114.99 1983-1985 Honda VT700 VT 700 Shadow Regulator … The 10-100 regulator is connected to the harncss via the 3 single wires with spade terminals (these plug into the wires that originally were going to the tabs on the OE regulator). Russell from Electrex World explains how to do a simple diode test on regulator rectifiers using a multimeter. Excerpted from a CB750/550 Wiring Diagram. Put back my old halogen and everything works great. + pos to starter and - to ground. Re: Voltage regulator rectifier retrofit on CB750 I dont think its going to gain you anything unless the newer unit has larger heat sinks on it. But what bugs me is that with the original regulator, I pushed the bike pretty hard, for about an hour, hour break and then for another hour, and it was fine months after that, then, the other day I took it out on the freeway again, pushed it a bit( for like â¦ CMSNL lists one but they want $850! $16.59. Any deviation and it's jacked. Dynatek Charge Monitor. The rectifier actually converts the power from AC to DC, while the regulator keeps the power level (voltage) from going above the 13.8 -14.5 volts needed to power a standard 12 volt battery. Culprit was the LED bulb. If I will keep my LED light I mean. The load was so much smaller, 15W vs. 55W, that charging voltage jumped up and down. With H4 halogen, charging voltage stays most of the time between 12V-14,5V as supposed to. 0 Members and 1 Guest are viewing this topic. This … That is how a regulator for a PM alternator works, like on many Harleys. Relevance. ECCPP Voltage Regulator Rectifier Fit for 1968-1973 Honda CB350 1973 Honda CB350G 1974 Honda CB360 1974 Honda CB360G 1975-1976 Honda CB360T 1967-1974 Honda CB450 31700-455-671 Rectifier Regulator OE :31700-102-731 6V Voltage Regulator Rectifier for Honda SL100 SL125 CB125 S CB125S CL125 … The 10-100 rectifier plugs into the harness at the same location as the OE rectifier. With the engine running and the multimeter set to check AC voltage, connect the probes to the stator sockets. 1 decade ago. The LED status will indicate voltage regulator or alternator problems. Check the Forum FAQ before you post - the answer to your questions might already be there waiting. "A ship in harbor is safe, but that is not what ships are built for. Replaces OEM Part: 31400-292-670, 31700 … Yes the are hook up right. But every now and then charging voltage drops from 14,5V to 12V no matter what RPM. The manual says there should be between .41-.51 ohms. Our regulator rectifier combo kit is easy to install and fits the Honda CB175, CL175, SL175, CB200, CL200, CB350, CL350, SL350, CB360, CL360, CJ360, CB450, CL450, CB500T motorcycles. The battery box, where the stock regulator mounts, floats on its rubber mountings and is not a ground. My opinion is that the charging system and regulator are fine.....the problem is that the LED replacement light is presenting a much smaller load on the charging system, compared to the 50w load of the stock headlight, and is 'jumping' up to 15v because of this. alternators the rectifier and voltage regulator built into one unit: All of our VRR4EM-H series regulator / rectifier units are the same other than the length of wire, plugs and what ships with them, but the are otherwise exactly the same. ... Don't even need a rectifier or regulator to test that. The bike left me stranded a â¦ Good post Mystic... and yes the charging system would perform as per your dia. Once you've just found out that it's good then I'd look at other components like Voltage Regulator (not likely), connectors (most likely), and after market coils which want more voltage. In the Honda section,I posted a detailed wiring test that found a shorted Voltage regulator....that is,key switch on and the black wire attached to the voltage regulator … b. T with Connect 12V batteries resistor with a Son in Test go out when 14â1 SV by the RECTIFIER GENERATOR REGULATOR BATTERY,'CHARGING SYSTEM GREEN WHITE BLACK RESISTOR son rwo FULLY CHARGED BATTERIES VOLT METER Sounds like a problem with the regulator itself. This regulator was used on virtually all Chrysler products from 1970 to … regulator/rectifier. If that checks out ok check your rectifier.(spelling?). Free shipping for many products! TESTING THE REGULATOR/ RECTIFIER The cb750 originally came with an individual regulator and a separate rectifier. If this test shows continuity to ground, then the unit is bad. Go to the auto parts store like advanced auto, or auto zone (i got mine at advanced) and go by all the testers and there will be a little tester thats 1 inch by about 7 inches and it has a positive lead and a negitave lead, it test battery volts and alternator or in our case stator votls. Yep. Well, we put our heads together and made a easy to install and … Voltage Regulator. I ride it and work on it to minimize down time. However after testing the three yellow wires on the stator, I found that that all of them had continuity with each other, but there is little/no resistance (<.000 ohms). https://www.motorcycleproject.com/text/regul_adjust_750.html Add 40 years of heat, weather and previous owners wiring hacks and no wonder the battery on your bike is always dead. 3 yellows from the stator, 1 to the batt + and 1 to batt â¦ Favorite Answer. Put the leads of the multi meter on the battery and increase the engine speed to 3000 rpm. It is important that the stator provides more power than needed by the motorcycle so that the battery will stay charged. If you are not satisfied for any reason, please contact me and I will strive to make it right. This type of system regulates battery voltage by turning the field coil in the electromagnet rotor on and off to control when current is produced in the stator. Works the same as the VR291. 1972-1974 Honda CB350F 1975-1977 Honda CB400F 1971-1973 Honda CB500 1975-1977 Honda CB550F 1975-1976 1978 Honda CB550K 1969-1974 Honda CB750 1975-1978 Honda CB750F 1975-1978 Honda CB750K I don't think even with the reduced load that there should be such a dramatic double-peak in the voltage. Found out that my v.regulator core gap was on the tight side (0,55mm). When it's under load I'm only getting about 12.4 volts across it so I'm starting to investigate where the problem might be. I have a 1975 Honda CB750. Mystic.... the stock regulator is designed to work with the load of the headlight, tail light and ignition. A great forum. Next, with your meter still on AC, check the output of your reg/rect and you should read 0 (zero) … Honda Rectifier / Regulator CB500 / CB550F / CB550K | Common â¦ 1 decade ago. R255a rectifier for 1969~1978 SOHC in-line four cylinder Hondas $5 1.00 R255a-H This part has the same plug as the R255a pictured above and to the right but with 5" wires ... separate rectifier and Thanks for your replies! Package Content:1 x Voltage Regulator Rectifier . the CB750 automatic. relay to know when to switch from full charge mode to low charge mode. Put the leads of the multi meter on the battery and increase the engine speed to 3000 rpm. Starting with the 1977 model year, the 750 Automatic got the more modern one-piece regulator/rectifier that would be introduced on the 1979 DOHC fours. The regulator doesn't shunt the excess current to ground. Fire up the bike and let it warm up, a little. Free shipping I installed an analog voltage meter to observe charging voltage while riding. Rev the engine up to 3,000 rpm and read the meter. Get a multi meter and instructions for its use. ... ↑ Older style CB750 combination ↑ ... (same connector as the regulator on single sealed units), you want to test for both continuity and voltage drop on both the red or red/white wires (battery positive) to each of the three yellow wires. This rectifier comes with a new mating plug for the wiring harness. The proper connection for a coil is that the voltage from the ignition switch goes to coil (+). Thank you for the help, I'm still working on the bike. Anonymous. Buy Voltage Regulator For Honda CB650 CB750 Nighthawk / CB750C CB900C Custom / CB750K / CB750L Limited / CB750F CB900F CBX Super Sport / CB1000 / CB1100 1979-1985 Repl.# 31600-425-008 31600-MG5-000: Regulators - Amazon.com FREE DELIVERY possible on eligible purchases VOLTAGE REGULATOR PERFORMANCE TEST with with the Regulator Cut off field ât "âISV. The LED status will indicate voltage regulator or alternator problems. It's definitely a fine balancing act. ... Rev it over 2000 rpm and check the voltage. Notice: During this worldwide fight against COVID-19 we continue shipping orders daily with a limited workforce performing daily workplace sanitization to prevent the spread of this disease. Plus I discovered there are actually points in the regultor that might need to be re-gapped....I tried it but not sure I got it right..is there any test using the multimeter to check the regultaor? I have been told that the voltage regulator is mechanical and there really is not a way to test it but I have adjusted it according to the manual. I have a multimeter but I'll go to the storte today and get the one recommend and give it a try. how do i test voltage regulator on a cb750 k? Some more revs and voltage jumps again straight to 15V. New For Honda CB550K 1975-1976 1978, CB750 1969-1974 Voltage Regulator Rectifier. white wire. So my battery isn't getting any charge (<12.5 above 3k rpm). Here's my problem. Once you have located the rectifiers harness side connector (same connector as the regulator on single sealed units), you want to test for both continuity and voltage drop on both the red or red/white wires (battery positive) to each of the three yellow wires. I'm a curious dude so I'd try reinstalling the LED headlight and fiddling with the voltage adjustment screw or even try varying the air gap as per Lloyd's post, just to see how the system responded. You are bidding on the voltage regulator for a 1976 Honda CB750K.See description for condition. Now repeat the charge amps test, but this time, DO NOT EXCEED 3000 RPM, the voltage could go dangerously high. regulator/rectifier. Any ideas woould be great. ... electrical fault finding and practical testing and test equipment. The stator coil is no longer available. 1 Answer. with giving it some throttle it should be able to go past 24 volts ac. I ran a parasitic draw test and came back with nothing so I'm thinking either regulator rectifier or stator. Regulator/Rectifier unit for the 1979~1984 DOHC CB750 through 1100cc Honda … you will do the same exact troubleshooting procedure on the green (ground) wire to the same three yellow wires. You could introduce a series resister to increase the headlight load, but then you would lose the power savings you are ( I presume ) trying to save. Applications: Please Ensure Your Motorcycle is in our compatibility before buying. Maybe you got different voltage values (lower) on the black cable that comes from the positive to the I terminal connector of the regulator, than the values from the battery terminals, and this determine you regulator the get more power from the alternator. I am committed to providing you a good usable part. Everything I can find lists the cb750 as a 5 wire unit reg/rec. There are a few guys out there who still use these components, but there are plenty of more modern solid state regulator/rectifier combo units … With the headlight load effectively removed ( LED light ).... it cannot behave as designed and if the battery is close to full charge then 15v would not be unusual IMO. The regulator contacts are not visibly pitted/corroded. All the Honda SOHC fours including the first year (1976) 750 Automatic had a mechanical voltage regulator separate from the rectifier. Sorry, forgot to mention that I have done exactly what you recommended. The color code remains the same. Does it 'jump' too when it becomes brighter or gradually? Two tiny screws to pop the cover off and check the contacts for pitting/corrosion/contamination, then measure the gaps. Thanks alot for everyone's input! If you test it you will test all 3 circuits for continuity in 1 direction (good) and lack of continuity in the other (also good). if the regulator is getting that kind of voltage or more then its getting enough to charge … 1 Answer. would not know how to respond as its not a 'pure' resistive load like the stock 'tungsten' lamp. Answer Save. 05-26-2016, 12:29 AM #25. It is important that the stator provides more power than needed by the motorcycle so that the battery will stay charged. This rectifier comes with a new mating plug for the wiring harness. 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. A small increase in revs to 1200RPM and the voltage jumps straight to 15V. Rectifier Regulator for Motorcycle / ATV / off-road / watercraft / snowmobile Choose Year 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002 2001 2000 1999 1998 1997 1996 1995 1994 1993 1992 1991 1990 1989 1988 1987 1986 1985 1984 1983 1982 1981 1980 1979 1978 1977 1976 1975 1974 1973 1972 1971 1970 1969 1968 1967 1966 1965 â¦ Hi! How to wire up a External Voltage Regulator for Dodge Chrysler ... 76 Cb750 Wiring Diagram For Voltage Regulator 76 Cb750 Wiring Diagram For Voltage Regulator: pin. The CB750's OEM manual had directions on how to adjust them, I believe. If there's less load on the system, wouldn't the regulator try to drop into "do not charge" mode instead of "charge as much as possible" mode? The LED status will indicate voltage regulator or alternator problems. Read Or Download The Diagram Pictures Regulator Rectifier For FREE Wiring Diagram at CROWDFUNDING-PLEDGE.DEMO.AGRIYA.COM You should read around 25 Volts AC. Login with username, password and session length. Adjusted core gap to 0,85mm and charging voltage is now consistent! I've read that some of the mechanical regulators were adjustable, early CB750's, for example. white wire. At 1000 RPM the voltage is around 12V. with the h/l off, but then introduce a LED h/l load and the reg. Voltage Regulator for Honda CB650 Nighthawk CB750 CB900 CBX Super Sport CB1000 CB1100 Custom Four K Limited 1979-1985 This voltage regulator rectifier is made specifically for field coil control regulation applications. Buy Mosfet Voltage Regulator Rectifier For Honda CB650 CB750 CB900 Nighthawk K Limited Custom CB750F CB900F F CBX1000 Super Sport CB1000 CB1100 CB CBX 650 750 900 1000 1100 1979-1985 Repl.#31600-425-008: Rectifiers - Amazon.com FREE DELIVERY possible on eligible purchases Logged "A ship in harbor is safe, but that is not what ships are built for." Favorite Answer. Voltage Regulator Rectifier For Combo 1969-78 For Honda Cb350f Cb400f Cb500 Cb550 Cb750 , Find Complete Details about Voltage Regulator Rectifier For Combo 1969-78 For Honda Cb350f Cb400f Cb500 Cb550 Cb750,Pressure Regulators,Infinite Regulator,Starter Regulator from Car Alternator Supplier or … The factory voltage regulator (limits total voltage to the battery ) and rectifier (converts AC to DC) were barely up to the task back in the day. Voltage Regulator for Honda CB650 Nighthawk CB750 CB900 CBX Super Sport CB1000 CB1100 Custom Four K Limited 1979-1985 This voltage regulator rectifier is made specifically for field coil control regulation applications. But my old Chiltons manual tells me in order to check the alternator output I need an ohmmeter and a voltage meter and you connect them in series to the positive side of the battery and this will tell what the alternator looks like...well no a days you buy these digital multi purpose meters so I don't know how to hook that up to the battery and check alternator out put??? I have a short in a 1994 Harley 1200.Need to find out how to test the voltage regulator and the stator. … We manufacture a wide range of regulator rectifiers to fit new and older Japanese and European motorcycles. For example, note that there are two troubleshooting flow paths. ", http://forums.sohc4.net/index.php?topic=68952.0, http://www.xl250k3.com/library/Honda-Electrical-Manual.pdf, Quote from: playbike on April 16, 2015, 06:53:07 am, CB750 Shop Manual (all years), searchable text PDF, Calculating the correct input circumference for digital speedometers connected to the original speedometer drive, charging system chart from this very site, "There is enough for everyone's need but not enough for anybody's greed. Get a multi meter and instructions for its use. However, to use it, you must understand the charging system. TESTING THE REGULATOR/ RECTIFIER The cb750 originally came with an individual regulator and a separate rectifier. The first dynamic test allows you to check the rotor that contains the magnets and spins around the stator. Note: 2 Coils Used per Bike, Order the Quantity you Require Part #: 17-6903 USD$4.95 Set ... electrical fault finding and practical testing and test equipment. Work on it to minimize down time... do n't even need a or... Rectifier. ( spelling? ) the cover off and check the rotor will cause a of! Your rectifier. ( spelling? ) it happen so suddenly and periodically at different revs Japanese and motorcycles. Experience the true potential of your cb750, CB500 or CB550 a couple weeks ago, was! Load ( amperage ) passing thru ' the reg regulator on a cb750 k voltage drops from to... Check ac voltage, connect the probes to the storte today and check contacts! Previous owner conected the wrong way the regulator is getting that kind of voltage more. Ac voltage, connect the probes to the same location as the engine to. Harness test this procedure tests the integrity of the time to dig into this problem properly adjusted gap. Are viewing this topic weather and previous owners wiring hacks and no wonder the battery terminals on new! Switch from full charge mode to low charge mode to low charge mode to low charge.! Solid state regulator a moment voltage comes gradually back to 12V no matter what rpm to test the side! Test, but that is how a regulator for a 1976 Honda CB750K.See description for condition of heat, and! Cb750 originally came with an individual regulator and a separate rectifier and voltage on! Of testing this setup for the wiring harness test this procedure tests the integrity of the mechanical were... Charge amps test, but then introduce a LED h/l load and the reg procedure on the with... Put back the stock headlight maybe it would behave normally specified range the speed... Wiring harness test this procedure tests the integrity of the yellow wires are shorting to ground a single unit replaces. On two new Harley battery 's the bike load and the voltage your. If this test shows continuity to ground PERFORMANCE test with with the reduced load that there are troubleshooting... No matter what rpm not what ships are built for. test continuity! And previous owners wiring hacks and no wonder the battery will stay charged as above installed... Above 1.270 fried it committed to providing you a good usable part, please contact me and ca... The same three yellow wires are shorting to ground, then why does it 'jump ' too it. It right bike ’ s wiring diagram to identify the appropriate wires meter to observe charging voltage while riding for... Description for condition a parasitic draw test and came back with nothing so 'm! Cb750, CB500 or CB550 measured from the battery will stay charged needs load! Would behave normally CB750K.See description for condition storte today and check the contacts pitting/corrosion/contamination... Plug for the wiring harness test this procedure tests the integrity of the time between 12V-14,5V supposed! Test this procedure tests the integrity of the yellow wires are shorting ground. Would not know how to do a simple diode test on regulator rectifiers to new... Will stay charged 14,5V and stays there the h/l off, but that is what! White and green wires and connectors attached to the stator provides more power than by! This procedure tests the integrity of the headlight do for reaction when you rev the engine is revved I. Troubleshooting procedure on the battery on your bike ’ s specific gravity reading 1.270. 'Jump ' too when it becomes brighter or gradually the black wire ) rectifier is. Mating plug for the wiring harness for example committed to providing you a usable! Few years ago and I ca n't remember if those points were misaligned.... Then charging voltage jumped up and down PAMCO, you must understand the charging system with a new plug. The excess current to ground home which was cool its use please contact me and I ca n't remember those. 1969~1978 SOHC in-line four cylinder Hondas $ 5 1.00 R255a-H... separate rectifier the multimeter set check. Charge ( < 12.5 above 3k rpm ), cb750 Nighthawk ( 91-01 ), cb750 Nighthawk 91-01. To dig into this problem properly 40 years of heat, weather and previous owners hacks. Again straight to 15V, measured from the battery terminals on two new Harley battery.! … how do I test voltage regulator and the stator provides more power than needed by the motorcycle so the! Than about 14.5 or so run the bike and let it warm up, a little 91-01... Needs that load ( amperage ) passing thru ' the reg any problems with the reduced load that are! To obtain accurate test results, the voltage drops back to 14,5V and stays there it would normally. As it should up and down to 0,85mm and charging voltage of my cb750 K2 is jumping from 12V 15V... Cylinder Hondas $ 5 1.00 R255a-H... separate rectifier you should be such a dramatic in... Reason, please contact me and I will keep my LED light I mean dig! Testing this setup for the '80 to '84 models I modified my bike above. As the OE rectifier battery 's I missed that there 's a problem! 'M still working on the battery ’ s specific gravity reading above 1.270 would n't surprise me if behavior. Stator provides more power than needed by the motorcycle so that it stays within the range.... electrical fault finding and practical testing and test equipment cb750 voltage regulator test not satisfied for reason! Misaligned by half of their diameter share - # 0118 Honda cb750 750. Points were misaligned then the appropriate wires load that there should be between.41-.51 ohms draw test came... Good post mystic... and yes the charging system first with conventional H4 bulb cb750 a! Separate rectifier and voltage regulator on cb750 voltage regulator test cb750 k cb750 originally came with an individual and. This model but buyer is responsible for fitment to other years test,! Drops from 14,5V to 12V 3,000 rpm and read the meter lists the as... Would behave normally likely the problem measured from the battery terminals jumps straight to 15V measured. Minimize down time is n't getting any charge ( < 12.5 above 3k )....... the stock headlight maybe it would behave normally to minimize down time Honda rectifier / regulator CB500 CB550F! Testing this setup for the wiring harness test this procedure tests the integrity of the wires but has melted wires. Reading above 1.270 and connectors attached to the storte today and check the rotor that the! Are shorting to ground the black, white and green wires and fried it unit replaces... We manufacture a wide range of regulator rectifiers using a multimeter black, white and green wires connectors... Off field ât `` âISV periodically at different revs on it to down... Provides more power than needed by the motorcycle so that the stator.... H4 halogen, charging voltage jumped up and down I ran a parasitic draw test cb750 voltage regulator test came back nothing. You are not satisfied for any reason, please contact me and ca... Have done exactly what you recommended circuit too early and too eagerly test on regulator rectifiers using a.... Responsible for fitment to other years regulator Adjustment.jpg ( 659.04 kB, 1873x2061 - viewed 44 times ). So that the battery and increase the engine up to 3,000 rpm and check the rotor cause! Find some time today and check the charging system voltage gradually drops off as the engine is revved a double-peak! Caused the regulator to test the voltage '84 models I modified my bike as above and installed the is! Repeat the charge amps test, but this time, do not let it warm up, a little that... A little and no wonder the battery on your bike ’ s specific gravity as described in three... Is always dead will experience the true potential of your cb750, CB500 or CB550 halogen and everything great... Headlight off or regulator to switch circuit too early and too eagerly we a... Previous owner conected the wrong way the regulator does n't shunt the excess to... Adjustable, early cb750 's OEM manual had directions on how to test that Honda rectifier... Is n't getting any charge ( < 12.5 above 3k rpm ) simple diode test on regulator rectifiers using multimeter! And instructions for its use as it should on a cb750 k you... Multi meter on the battery on your bike ’ s wiring diagram to the... Same exact troubleshooting procedure on the battery ’ s specific gravity as described Chapter... Time between 12V-14,5V as supposed to more then its getting enough to charge … I done. Spins around the stator sockets ( spelling? ) does the headlight, light! Suspect the stator coil multimeter set to check the contacts for pitting/corrosion/contamination, then the unit is.! ( - ) rectifier comes with a new mating plug for the wiring harness shunt the current... On the battery will stay charged its mechanical regulator and it worked but 'll! Desired behavior could be restored ' resistive load like the PAMCO, must... Need a rectifier or regulator to switch from full charge mode to low charge mode to low charge mode and! Finding and practical testing and test the voltage jumps straight to 15V and green wires and fried!. Tiny screws to pop the cover off and check the rotor will a! Meter and instructions for its use get a multi meter and instructions for its use the so! Voltage meter to observe charging voltage jumped up and down good post mystic... and run the bike and it. Regulator/Rectifier wiring harness test voltage regulator / rectifier combo is a single unit that replaces both factory parts ( kB!

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