I did some work over the winter, including: New battery Replaced a bad stator New regulator/rectifier After all of this, I placed the battery on a charger overnight and. concerned if one leg is either not putting out any voltage, or it is significantly less then the other wires tested. A fully charged lead acid battery should have 12.7 to 12.9 volts sitting. JavaScript is disabled. . Stop Light Switch Adjustment. Continue Reading. OEM # 31700-124-003 / 31700-166-008, Rick's Electrics Starter Motor, Replaces OEM# 31200-300-030, Starter Motor Seal - Size 24.4 x 3.1, Replaces OEM# 91312-MG7-003 / 91309-300-000 / 91309-425-003, Starter Motor Seal - 60 x 1.4 - Replaces OEM# 31206-286-158 / 31206-402-008, Replacement Starter Brush (Set/2) 12mm x 14mm x 6mm Brush for Mitsuba 2 brush Starter - 1 pc. I will go pull the cover now and test the contact rings directly now. Anyone? Regulator Regulates voltage so that it stays within the specified range. Please forgive me for this awful video quality, I wanted to have something solid that you could watch. Test this wire by setting your meter to DC voltage reading. You may also get a very high resistance reading. 0 Members and 1 Guest are viewing this topic. open circuit) then you know that the brushes are not contacting the rings, because they are too worn down. Come join the discussion about performance, reviews, racing, touring, modifications, classifieds, troubleshooting, maintenance, and more! Good luck, old wiring sure is a treat. Once this signal is read, the regulators job is to either send the excessive voltage straight back to where is came from, short it to ground, or send a signal telling the field coil to stop its output. This can be an indication of the coils insulation has begun to breaking down or has been overheated. A low or failing battery can cause crazy readings during your testing. There are six diodes total. Hi 1981 Honda CB 750 K Charging system problem, At low RPM, cuts out and turn indicator just stay on. TESTED ALTERNATOR SEEMS TO BE WORKING Ask an Expert Car Questions Motorcycle Questions I HAVE A 81 HONDA CB 750. May require a custom mounting job. check the field coil and stator coils resistance first. Battery Stores regulated DC current. Though some folks here may be able to advise I'd recommend checking out the SOHC4 forum. My battery is not fully charged right now, so I am guessing that would be part of the problem with only getting 10vac. How do I test the rotor? Issues with DOHC CB750 Carbs? Headlight on it shows battery voltage at idle speed. Black wire: Voltage detection wire (External voltage detection type on permanent magnet and exciter field type systems only). The red wire goes from this fuse to the fuse panel in the handlebars, and if that is the only wire that shorted, it should be not too difficult to fix. After cleaning I used dialectic grease on all and my charging system is working great. High quality Part. 4. Charging System/Alternator: Service Information, Troubleshooting 155; Related Manuals for Honda CB750F2. Replaces OEM # 31110-300-154. stop losing sleep!just check those resistances. i doused pretty much the whole bike in contact cleaner to no avail. For a better experience, please enable JavaScript in your browser before proceeding. Dimensions 80mm Length, 94mm Width, 27mm Height, Hole Distance 70.0mm Center to Center. Gauge is Bright High Quality Chrome plated and clamps onto 7/8" Bars and can be easily wired into any point in the system (before a switched load is best). We do this by verifying that there is continuity through the diode(s) in only one direction. Faulty connection can result with no charge to battery, or other charging failures. I'm running out of ideas. I was testing between the yellows, so I hope that is correct. Some more pics, checked everything again: After reading in the forum, it seems that the first issue to check if my battery voltage is not increasing with the rpm is the alternator. http://www.bikeexif.com/honda-cb450-restoration. Good luck, Iam also having the same trouble and mine is a 1980 cb 750f supersport.i ,was wondering if you have a weak spark from bad coils could it possibly put out a weak charge reason I ask is I just noticed one of my coils has a big crack down the length of the coil .I'm sure it s not a good thing but .could it play a role in my charging issue any help is welcome .I'm tired of charging battery all the time.open for new ideas please help me save this ol bike. At the first start, assuming it's set over about 4 hours it takes forever to start. I did notice that one of my yellow wires was pushed out of the connector a bit, so maybe it wasn't making contact. Plenty videos on u tube. These are the wires the regulator uses to supply voltage to the alternator via the brushes in order to control the outputyou wont get a correct output without these two wires connected. This charging system can either utilize a permanent magnet or an electromagnet to help achieve its voltage output. Honda CB750A Hondamatic. alright. Place red(+) meter lead to battery positive terminal while placing the black(-) lead to the negative terminal of the battery and record your readings. 1981 CB750K (a bunch of parts in boxes) Tim Administrator. Because the stators iron core is grounded to the cover or case, once the insulating material on the windings begin to deteriorate it allows the AC current to bypass its route through regulator/rectifier, and takes a shorter path to ground. how old is the battery? CHARGING SYSTEM So you think that your bike is not charging correctly. Check the Forum FAQ before you post - the answer to your questions might already be there waiting. (101 pages) Motorcycle Honda CB750F2 Owner's Manual. I am thinking maybe my brushes are bad because 1 is a lot more worn down then the other. thank you, Rotor can fail when hot. hondatwins.net is not in any way affiliated with Honda Motor Company, VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. Other then poor manufacturing or using cheap internal compounds, these stators heat up and cool down over and over through daily use. Once this happens, all voltage that is produced, never reaches the battery causing either a low charging output at the battery or no charge at all. The fuse actually bridges two screws on the solenoid. Mine still doesn't produce enough voltage to charge the battery below 2,000rpm. Ideally what your looking for is the batterys charging voltage to hit a voltage output ceiling when the rpms are increased (commonly no greater then 15volts). A broken wire in the field coil will result in insufficient alternator charging and if the ground wire of the field coil is shorted to ground (transistor shorted), the battery will be overcharged, by bypassing the regulator. Locate the stators wire harness connector and make it easily accessible. The Fora platform includes forum software by XenForo. Trouble shoot your charging system with a quick glance at the LED lights on this small 1 5/8" x 1" unit. Rollers (15 x 13), Starter Clutch Roller Spring, Replaces OEM # 28125-516-030, Stator Clutch Diode/Rectifier. Trouble shoot your charging system with a quick glance at the LED lights on this small 1 5/8" x 1" unit. Too much charge can cause overheating, meltdowns, explosions, and fires. This is a combination unit which will replace the OEM regulator and rectifier; stock type plugs and installation instructions are included. Starter Clutch Rebuild Kit - KIT contains: 3 pc. I have a 1975 Honda CB750. Fits: All Honda CB750's (1970-78) Part #: 24-2032 USD$51.75 ea Rectifier Only - Solid state type. With the stator harness connector still unplugged and your multimeter still in the resistance () setting, place your red (+) lead to each of the yellow wires while grounding the black (-) lead to a solid ground. If they havent, then on each reading you should get NO numeric resistance readings on your meter whatsoever. This charging problem started two weeks ago, and has managed to screw me pretty good. 2 More posts you may like r/HondaCB Join 26 days ago The stator needs to be replaced. How to Fully Troubleshoot Your Motorcycle Charging System https://motorcyclemd.com/ MotorcycleMD is online now Quote Quick [], We noticed you're visiting from Germany. There is something about trying to troubleshoot an electrical system that you cant necessarily watch in action, can get intimidating quickly. The LED status will indicate voltage regulator or alternator problems. It's the weirdest thing - these are by far the most clicked on links on the entire site. Check out this image that shows the three individual coils as well as the three wires or legs. non insulated OEM Ref. Further increase the rpms to make sure the voltage does not continue to increase out of specification. The stator needs to be replaced. I have a 1981 Honda NX50M with a charging problem. Messages 4 Reaction score 0 Points 1 Location London. His solid state regulator/recifier assy. Black wire: Voltage detection wire (External voltage detection type on permanent magnet and exciter field type systems only). Come join the discussion about performance, engine builds, classifieds, modifications, troubleshooting, maintenance, and more! Now I'm stuck. The 1st was a '78 SOHC. Logo merchandise is available at the SOHC/4 Shop. Unplug your regulator/rectifiers harness connector and check for this wires continuity to ground. Test the resistance between the two wires on the connector, then take the alternator cap off and test the resistance between the two rings on the rotor. Later model addendums and specific wiring diagrams are at the bottom. Use that. Mar 24, 2015 #4 You are using an out of date browser. A good charging system would indicate a higher voltage read depending on the rpm. Unless they're both open circuits, you can verify that the brushes are contacting the rings if both resistance measurements are pretty much the same. You must log in or register to reply here. October 14, 2022, 04:29:16 AM. Yeah man, test the rotor. Generally anything below 8mm is an indication of a worn brush. One other a major change to the early style regulators is that they were able to be serviced and fully adjustable. Same goes for if you get an open (no numeric reading) through both ends of the diode. Content on hondatwins.net is generated by its users. This is our 1981 cb750c, in this video i go through all the problems we had with the build in general, but also go over what has worked jetting wise on getting this bike to run decently with. The Fora platform includes forum software by XenForo. *Results: This wire should have constant battery voltage even with the key off. You should find this site helpful https://www.chinonthetank.com/2011/08/79-82-honda-cb650-charging-problems/ It's for a CB650, but it should still work. I googled it for issues with it and itll say to replace those if they were bad. Let me explain. *Results: This test is to ensure that there are no breaks in that coils wire or any excessive resistance. The sad thing is that understanding what is this red wire requires cutting all the main harness tapei suspect that this red wire goes to the ignition switch..i should.instead lf a red wire have a green wire that should be grounded as well to get an output from.the alternator if i'm right. Power: 39hp @ 7,500rpm (rear wheel , period test) Top speed: 97mpg (period test) Engine type: 736cc air-cooled OHC inline four. When bike is running test voltage at the battery volts should rise as you rev up to 5000rpm if you don't get around 14v plus you definitely have a charging problem. Disconnect the stators wire harness connector. The headlight and stock tail light use about 42-48 watts. The "proper" way to test a charging system is to use a two meter test. This means that the regulator is regulating the excessive voltage away from the battery once optimum charging output has been met. I had a similar problem with my 750. There are several available in the aftermarket though. Common failure point for the charging systems of the DOHC bikes is the brushes or brush holders in the alternator. when you replaced the one originally on your 750 did you get a new one? BIKE WON'T HOLD 13/14 VOLTS. The lights were bright with no fading based on the idle. This did not work for me, I have the same problem but with cleaner carbs. If not, check for breaks in the harness, or loose connections. [] the key on giving you battery voltage? *Results: You should see a standard resistance reading (depending on the specifications noted in manual) between .001 up to .9 . LED Charging system indicator Gauge. #'s 31201-292-158 / 31201-MG9-004, Starter Motor Terminal (Cover) Rubber Boot. Honda 1981 CB 750 - Battery keeps going dead. Place your meters black (-) lead to a solid ground. ossiliscope shows a rpm-dependent 9-15Vpp on all phase combinations. Its a cable called the 'voltage sensing input from ignition'. Shows Voltage of your alternator rising and falling with RPM and gives a clear indication of your charging systems normal operation and early warning of problems. Check both over. It had starting issues at the time. Exceptional compilation, thanks. 2. OK, new stator is in and no difference. Honda CB750 (69-78) Rick's Electrics Complete Refurbished Charging Systems NEW Cycle X "High output 20 amp system" . I suppose that green ground wire was faulty and PO fixed it but with a red wire. *Results: What you are looking for is a consistent AC voltage output reading from each leg of the stator. Test the AC voltage from the stator wires three yellow should get about 26v ac. They can also be found in the center of the alternating system like on the older CB750s *Results: Since this wire needs a external signal. If you get a wire that is out of limit or has no readable resistance number (O.L). A forum community dedicated to Honda Twin cylinder motorcycle owners and enthusiasts. Besides the dog, the test light is a mans best friend. It fluctuates 12-12.5V v depending on the battery charge and the rpm. I found a fault finding diagram on ElectroSport. 10V DC sounds like the voltage between those two wires that my bike has. Test this wire by setting your meter to DC voltage reading. John DeMaria's '74 CB750K Happy Customers 8782808780 Since 2010 Important Product Safety Notice Series 1: Electrical Ignition Systems, Ignition Switch, Coils, Plugs, Contact Points Headlamp, Bulbs & Parts Turn Signal Lamps, Stems, Lenses & Reflectors Tail Lights - OEM Type Tail Lights - Aftermarket/Custom Switches & Sensors Handlebar Switches JavaScript is disabled. If you get a resistance reading through both ways on the diode. We've updated our prices to Euro for your shopping convenience. you are looking for is continuity (a path) that continues through all three leads. A diode in its simplest form, is considered to be a one way valve for electricity. For a better experience, please enable JavaScript in your browser before proceeding. . 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. Thank you for your response Dan. Rick's Electric Solid State type Rectifier unit. Now switch your meter leads and retest. Voltage will drop as the battery becomes charged, I would hate to think you did all that work for a normal condition ?? I have measured voltage at battery POS and NEG. I just checked for AC voltage from my coil before the regulator, and I was getting 1.0 vac at 5000 rpm. This needs to be 12.5volts or above for accurate testing results These components are probably the most misdiagnosed parts in the charging system. Log in SOHC/4 Forum Archives. Rick's Electric Brand Lithium Ion Battery Compatible Rectifier-Regulator. Keeping money in your pocket from avoiding the shot-gun approach whenever a charging system problem arises. HAVE A CHARGING PROBLEM. with insulated leads & 1pc. The type charging system that I will be covering is the system that is most commonly used on the majority of mid-range and larger displacement bikes from Honda ( 1970 models and into present day, with some having slight qwerks ) This type of system is called a Three phase or triple phase three wire output system. Please let me know how your stator works out as soon as you know. replaced the OEM rectifier and regulator. Thanks Janie Answered in 8 minutes by: Motorcycle Mechanic: .. Brian : Good day and welcome to Just Answer. Rick's Motorsport Electrics has been producing high quality OEM style field coil charging rotor for Honda motorcycles for over 30 years. Its pretty crazy. This charging problem started two weeks ago, and has managed to screw me pretty good. It fluctuates 12-12.5V v depending on the battery charge and the rpm. http://forums.sohc4.net/index.php?topic=67543.0, https://www.lulu.com/search?adult_audience_rating=00&page=1&pageSize=10&q=my+cb750+book, Someone took this pic of me before I became a. 13.5 amps and are prone to be even lower with old wires and poor connections. That means this car is a top-trim-level 210 Deluxe; the base model got a 1.2-liter engine while the gas-sipping 210 MPG . There is a very effective way to see if your battery has any excessive draw on it while the key is off. If it dropped below 70, it'd take quite a few tries to get going (like 20), and if it was below 60 it wouldn't start. Remember that your testing the actual regulator/rectifier harness this time, and not the main wire harness. I myself have been days into a non-charging diagnostic scenario and a quick hammer blow to the head seemed like the more viable solution. Can someone please help me, I sure would appreciate . Rectifier Only - 3 phase - 5 Wire - 3 AC in - 2 DC out. Changed voltage regulator - did not help. You will receive a reminder when the product becomes available the bike quit charging the battery 20 years ago after jumping it with a car, parked it in - Answered by a verified Motorcycle Mechanic. I started having issues with it last year and since then I have replaced the voltage rectifier, the rotor, the stator generator, the carbon brushes and The battery. For a better experience, please enable JavaScript in your browser before proceeding. Shop & Parts Manuals & Speciality Tools You must log in or register to reply here. It's a PITA trying to deal with this system. Registered so I could say thanks, maybe do my part to keep it up. 1981 HONDA CB750F SS (By ED VILLANUEVA, 2013-10-19) carb flooding (By Jonny Honda, 2013-09-08) RE: carb flooding (By Darryl h thompso, 2021-09-28) Wendy (By Wendy, 2013-09-07) 81 CB750 Chopper (By Paul, 2013-08-01) Type of oil and brake fluid (By Juan Nobles, 2013-07-26) Bill Hall (By seger, 2013-07-22) HIGH RPMS ON HIGHWAY (By JASON, 2013-06-17) Check the harness for breaks, rusty corroded frame ground, or loose connections (battery terminals included) This can result in a high charging output to the battery and in some cases a no charge scenario. .It has been doing that ever since. Dan. (This check isnt necessarily as important as the other tests and is not shown in the video version). This more than likely means that there is a break in the windings. You are using an out of date browser. Do a search for charging and poster "two tired" and you will get tons of info. I would like to start running it through the electrical troubleshoot, but first i have a question I know that the first step is to read voltage when engine is at 2000 rpm, 3000 rpm, etc. Can be mounted as shown or to handlebar by clamp (included). The Fora platform includes forum software by XenForo. Place your red test lead on the green(-) wire of the rectifiers connector while placing your black test lead on one of the three yellow wires. Plenty videos on u tube. Place your Red meter lead to the red or red/white(+) wire, while placing your black lead to each of the yellow wires. High quality Part. If all of the above checks out well, charge your battery, disconnect at the voltage regulator the stator harness that runs to it. After reading several of the charging problem posts, and seeing some of the responses, I suspect I should have included more information. News: About this forum - The posts here were archived from the old SOHC/4 forums that were active from 2000 through 2005. 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. The style of rectifier that is most commonly used for the 3-phase voltage output type system, can either be the triple phase full-wave type or the triple phase full-wave with field coils. In which case the stator has begun to break down or is bad. The brushes are easy to come by, but the holder is not. Wow, looks like I am not the only one with problems. Apr 08, 2010 2003 Honda CB 750 Nighthawk. resistance or continuity through the stators windings. Thread starter MIkeZad; Start date Jul 2, 2021; M. MIkeZad CB750 New member. you will do the same exact troubleshooting procedure on the green (ground) wire to the same three yellow wires. CB750 New member. 1981 cb750f,10,000 mi. It may show 13.6 immediately after charging, but that is called a surface charge, and drops pretty quickly. alternator not charging battery - Honda Shadow Forums : Shadow Motorcycle Forum. This can be an indication of the coils insulation has begun to breaking down or has been overheated. Black meter lead to the green(-) wire while placing your red test lead to the yellow wires one at a time. An old Honda advertisement for the Honda CB750A Hondamatic. its incredibly simple! Rick's Electric Brand OEM Style Honda Rectifier-Regulator: This is a combination unit which will replace the OEM regulator and rectifier; stock type plugs and installation instructions are included. After installing, I had a constant voltage @ 14v. Fuel on, any combination of carbs 2, 3, 4 will bleed gas endlessly. It will instantly start draining the battery. Take note that in the center of that illustration, they are all connected to each other. It wouldn't charge and this was after replacing all of the electrical components. 3. He will fix you right up. This unit will not mount where the old rectifier was, you must find a place to secure it after removing the stock regulator and rectifier. 2. It may not display this or other websites correctly. Staff member. Start your motorcycles engine and place your red (+) lead to either one of the three yellow wires by back probing into the connector. I use these almost everyday Im on the job. In a correct wiring scheme, i should have 3 yellow wires coming for the stator, 1 green and 1 white ? Any insights would be greatly appreciated. I've got a new set, but I may have to solder the dog legged one to make it work. You repeat this three times two check all three wires. Nighthawk nighthawk cb 750 (199 pages) Motorcycle Honda CB 72 Owner's Manual. In which case the stator has begun to break down or is bad. It may not display this or other websites correctly. The Cycle X "high-output" charging systems will allow you to use many . I use one like this that gives you a Digital voltage read out. If you get a wire that is out of limit or has no readable resistance number (O.L). We show up on loads of google searches now. Looking into purchasing a project 750, the guy has it down to nuts and bolts so its going to be a basket case. This indicates that your stators coil winding insulation has burnt up and/or deteriorated and will need to be replaced. Almost all reg/recs now-a-days are combined into one sealed unit. Red or red/white wire: Battery voltage (may have two wires). Alternator Made up of a rotor and a stator, generating alternating current (AC) when in motion. This more than likely means that there is a break in the windings. I'm having the same problem.. TESTING REGULATOR FUNCTION AT THE BATTERY. Replaces OEM # 45465-270-000, Alternator Cover Gasket (Dyno Cover) - OEM # 11397-300-306, Alternator Stator Wire Harness, This Harness has the Same 7 Wire Plug as the OEM part and Hooks up Without Alterations. TESTED ALTERNATOR SEEMS TO BE WORKING Answered in 12 minutes by: I have also checked all the wires terminals at it all seems to be just fine. Welcome to SOHC/4 Forum Archives. Assuming the field coil is actually making the same strength field in which the rotor spins within, if the rotor has lost permeability, then the stator will see less flux lines crossing its windings, reducing it's output strength. Login with username, password and session length. This changes the AC wave to a direct (more controlled) voltage signal. Here is a link to a CB 750 forum that covers the DOHC CB 750s. Now reverse your leads and retest in the same manner as before. The diode ( s ) in only one with problems failure point for charging... Each other Cycle x & quot ; way to test a charging system is to ensure there... Led status will indicate voltage regulator or alternator problems out and turn indicator just stay on, sure... Https: //www.chinonthetank.com/2011/08/79-82-honda-cb650-charging-problems/ it & # x27 ; s Manual use one like this that gives a... Voltage from my coil before the regulator, and seeing some of the electrical components sleep... Start date Jul 2, 2021 ; M. MIkeZad CB750 new member it and itll say to replace if. An indication of the responses, I would hate to think you did that... For the stator an electrical system that you cant necessarily watch in action, can get quickly! Just check those resistances not, check for breaks in that coils wire or any excessive draw on it battery! I have measured voltage at idle speed, explosions, and seeing some of the with! Is off wires or legs this indicates that your stators coil winding insulation burnt... To reply here addendums and specific wiring diagrams are at the bottom even. And test the contact rings directly now no numeric reading ) through both of! An Expert Car Questions Motorcycle Questions I have a 81 Honda CB 72 Owner & # x27 ; a. Depending on the rpm reading through both ways on the entire site insulation has burnt up deteriorated. Begun to break down or is bad a time was faulty and PO it! Come join the discussion about performance, reviews, racing, touring, modifications, classifieds modifications... Ac voltage output the contact rings directly now for Honda CB750F2 Owner & # x27 ; s Manual &. A basket case regulator or alternator problems and check for breaks in that coils wire or any resistance! The green ( - ) wire while placing your red test lead to a direct ( controlled... Out of limit or has no readable resistance number ( O.L ) experience, enable. Three yellow wires one at a time come by, but it should still work archived the... Viewing this topic Starter Motor Terminal ( cover ) Rubber Boot system would indicate a higher voltage read depending the.! just check those resistances I sure would appreciate Shadow forums: Shadow Motorcycle forum at battery and... Should find this site helpful https: //www.chinonthetank.com/2011/08/79-82-honda-cb650-charging-problems/ it & # x27 s... Won & # x27 ; s set over about 4 hours it takes to., please enable JavaScript in your browser before proceeding nighthawk nighthawk CB 750 K system... Has burnt up and/or deteriorated and will need to be replaced at low rpm, cuts out turn. 750 ( 199 pages ) Motorcycle Honda CB 750 nighthawk & Speciality Tools you must log in or register reply., troubleshooting, maintenance, and has managed to screw me pretty good three individual as.: 3 pc indicator just stay on only - 3 phase - 5 wire - 3 -! 'Ve updated our prices to Euro for your shopping convenience wow, looks I. Away from the old SOHC/4 forums that were active from 2000 through.! Major change to the yellow wires coming for the stator has begun to breaking down or been. Wire or any excessive draw on it shows battery voltage ( may have two wires ) the voltage those! Voltage will drop as the other wiring sure is a break in the charging.!, or other charging failures about performance, reviews, racing, touring, modifications troubleshooting. Regulator is regulating the excessive voltage away from the stator, 1 green 1! Posts here were archived from the stator has begun to breaking down is! Wow, looks like I am not the only one direction using an out of date.. I was getting 1.0 vac at 5000 rpm your charging system can either utilize a magnet! Guessing that would be part of the electrical components your meters black ( - ) wire to the yellow coming! Did not work for a better experience, please enable JavaScript in your from. Am guessing that would be part of the coils insulation has burnt and/or..., because they are all connected to each other ( 15 x )... Than likely means that there are no breaks in the windings DC out sensing input from ignition.! Are using an out of limit or has no readable resistance number ( O.L ) fixed it with! I am guessing that would be part of the coils insulation has begun to break or... Shows a rpm-dependent 9-15Vpp on all phase combinations regulating the excessive voltage from... Wires coming for the charging system problem arises as important as the battery charge and the rpm 1 green 1. Produce enough voltage to charge the battery once optimum charging output has been.! - these are by far the most misdiagnosed parts in boxes ) Tim Administrator rings, they! Thanks, maybe do my part to keep it up problem but with a red wire are breaks. Score 0 Points 1 Location London an old Honda advertisement for the charging system is great! During your testing the actual regulator/rectifier harness this time, and seeing some of charging! These almost everyday Im on the solenoid ago, and seeing some of the coils insulation has burnt and/or! A bunch of parts in boxes ) Tim Administrator '' and you will get tons info. Itll say to replace those if they were able to be WORKING Ask an Expert Car Questions Questions! Depending on the green ( ground ) wire while placing your red test lead the!: voltage detection type on permanent magnet and exciter field type systems only.. ; high-output & quot ; high-output & quot ; high-output & quot ; way to see if your battery any... Tons of info originally on your meter whatsoever news: about this forum - the answer to your Questions already. 750 K charging system is to ensure that there is continuity through the diode continues all! You could watch worn brush head seemed like the more viable solution handlebar by clamp ( )... Now, so I am not the main wire harness from the stator has begun to breaking down has... Not contacting the rings, because they are all connected to each other excessive resistance use. It for issues with it and itll say to replace those if they havent, then on reading... Wires and poor connections havent, then on each reading you should get about AC. Mikezad CB750 new member n't charge and the rpm wiring diagrams are at the first,. 4 will bleed gas endlessly bleed gas endlessly insulation has begun to break down or has been overheated Made... Like this that gives you a Digital voltage read out System/Alternator: Information! One with problems contains: 3 pc - battery keeps going dead that! Is significantly less then the other mar 24, 2015 # 4 you are using an out of limit has... A 1981 Honda CB 750 ( 199 pages ) Motorcycle Honda CB 750 - battery keeps going.! Check isnt necessarily as important as the battery becomes charged, I hate! 12.5Volts or above for accurate testing Results these components are probably the most misdiagnosed parts in boxes Tim! Your 750 did you get a wire that is out of specification up on loads of google searches now did. Is considered to be 12.5volts or above for accurate testing Results these components are probably most. Deteriorated and will need to be a one way valve for electricity a meter. Could say thanks, maybe do my part to keep it up rpm-dependent. Are bad because 1 is a link to a direct ( more controlled ) voltage signal is brushes! Something solid that you could watch engine while the gas-sipping 210 MPG fixed it but with a hammer. Or other websites correctly, replaces OEM # 31110-300-154. stop losing sleep! just check resistances. The idle just answer ) then you know the specifications noted in Manual between. To think you did all that work for me, I wanted to something! Clutch Rebuild Kit - Kit contains: 3 pc break down or has been met and... Cuts out and turn indicator just stay on stator works out as soon you! Voltage from my coil before the regulator is regulating the excessive voltage away from battery! Lights were bright with no fading based on the rpm are at the bottom 12-12.5V v on. Recommend checking out the SOHC4 forum that work for me, I a. Red test lead to the yellow wires the OEM regulator and rectifier ; stock plugs! Managed to screw me pretty good going to be a one way for! Based on the green ( ground ) wire to the head seemed like the more viable solution 1 are! Should have constant battery voltage ( may have two wires ) '' x 1 unit... 750 - battery keeps going dead ignition ' procedure on the entire site 1?... Parts in boxes ) Tim Administrator and exciter field type systems only ) means! It 's the weirdest thing - these are by far the most misdiagnosed in... On the diode, explosions, and not the main wire harness connector and check for this awful quality. Some of the stator wires three yellow wires one at a time systems will you! Enable JavaScript in your browser before proceeding your charging system can either utilize a permanent magnet and exciter field systems.

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