Honda CB750 (69-78) Rick's Electrics Complete Refurbished Charging Systems NEW Cycle X "High output 20 amp system" . replaced the OEM rectifier and regulator. In you do not get a voltage reading, check wire for breaks or shorts in the harness, or loose connections. You are using an out of date browser. Continue Reading. But, see with the meter where it does go. Other random wires: If your system is designed with an additional field coil (refer to model specific service manual) it will need to be tested as well. Welcome to SOHC/4 Forum Archives. Place your red(+) lead to one of the yellow stator wires and place the other lead to a different yellow wire in the connector. You will not get that from any electrical parts supplier. 4. 1981 CB750K (a bunch of parts in boxes) Tim Administrator. 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. This charging problem started two weeks ago, and has managed to screw me pretty good. im gonna hook the ac gen up to an oscilliscope and see wtf's goin on. You do this by setting your meter to read resistance() and place your meter leads on the colored wires specified in the manual. A diode in its simplest form, is considered to be a one way valve for electricity. This site is also a test bed for modifications and themes that might someday find their way to the . 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. The voltage on the battery with the bike on fluctuates with RPM but stays significantly below the 14.5 I expect to see. Any insights would be greatly appreciated. I am thinking vacuum or gas but I am stumped. Fuel on, any combination of carbs 2, 3, 4 will bleed gas endlessly. Take note that in the center of that illustration, they are all connected to each other. This is really getting frustrating. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register. A fully charged lead acid battery should have 12.7 to 12.9 volts sitting. ESF901 is a brand new replacement rotor for the alternator system on CB650F, the CB750F, the CB900F and CB900C Honda models between the years 1979 and 1983. . The Real Housewives of Atlanta The Bachelor Sister Wives 90 Day Fiance Wife Swap The Amazing Race Australia Married at First Sight The Real Housewives of Dallas My 600-lb Life Last Week Tonight with John Oliver It is over charging and buring out all bulbs. Regulators are made up of all sorts of funky semiconducting electrical components that signal, trigger, and meter(regulate) voltage inputs and outputs. It will instantly start draining the battery. First, I'm not receiving any compensation. I've done 2- 750's. Check both over. 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. CB750c 1981 weak charge issue. 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. Ill be waiting to hear from you before taking further action Why do you think your rotor is bad? JavaScript is disabled. The stators and rotors go out all the time. I will go pull the cover now and test the contact rings directly now. 2. Though some folks here may be able to advise I'd recommend checking out the SOHC4 forum. Rick's Electric Brand Lithium Ion Battery Compatible Rectifier-Regulator. The 1st was a '78 SOHC. 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. Yeah man, test the rotor. It's the weirdest thing - these are by far the most clicked on links on the entire site. what kind of accesories (like hotter coils) are you running? CHARGING SYSTEM So you think that your bike is not charging correctly. Can someone help me? Sep 4, 2020. If you get a wire that is out of limit or has no readable resistance number (O.L). When you switched the leads in the opposite orientation, you should see an open (no reading). Keeping money in your pocket from avoiding the shot-gun approach whenever a charging system problem arises. Issues with DOHC CB750 Carbs? This more than likely means that there is a break in the windings. I did notice that one of my yellow wires was pushed out of the connector a bit, so maybe it wasn't making contact. It may not display this or other websites correctly. 2. It had starting issues at the time. I am thinking maybe my brushes are bad because 1 is a lot more worn down then the other. Place one lead on the wire and the other lead to a solid ground. . Battery Charging. . 1981 HONDA CB650Z / A - chain drive 1981 HONDA CB750F/F2 . If you discover that you have and open (no numeric value) or a excessively high reading. (This check isnt necessarily as important as the other tests and is not shown in the video version). High quality Part. In fact, post both the readings where you think it is good, and the readings you think are bad. 2. Probably should post the voltage readings that have you concerned. Shop & Parts Manuals & Speciality Tools You must log in or register to reply here. Also Be sure to check out these videos that I have over on the YouTube channel! I know its an old post just had to say thank you. right ? I googled it for issues with it and itll say to replace those if they were bad. Test this wire by setting your meter to DC voltage reading. Rick's Motorsport Electrics has been producing high quality OEM style field coil charging rotor for Honda motorcycles for over 30 years. After reading several of the charging problem posts, and seeing some of the responses, I suspect I should have included more information. In a correct wiring scheme, i should have 3 yellow wires coming for the stator, 1 green and 1 white ? Now, would it be possible that if the motorcycle overheats it drops to charge? New Bike Owner with charging problem. If you get a wire that is out of limit or has no readable resistance number (O.L). Nighthawk nighthawk cb 750 (199 pages) Motorcycle Honda CB750 Owner's Manual. 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. At 4K it shows 13.8 to 14.2 volts. Locate the stators wire harness connector and make it easily accessible. This was a lifesaver! 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. The rectifier needs to be unplugged with no voltage running through it. *Results: Since this wire needs a external signal. 1981 cb750f,10,000 mi. CruiserForums Moderator - Route 66 / American Iron / The Clinic Forums. You need to backtrack to the stator cover, remove left shift cover, and verify what wiring is there. 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. You do this by setting your meter to read resistance() and place your meter leads on the colored wires specified in the manual. (101 pages) Motorcycle Honda CB750F2 Owner's Manual. I have an 82 750sc and it is driving me nuts. 1. Replaces OEM # 95700-06056-00, Front Cable Clip, This Clip Holds the Stop Switch Wires to the Cable to Keep Things Tidy. HAVE A CHARGING PROBLEM. The stator needs to be replaced. All these wires are then connected to a big plug which is located on the main harness. I did some searching, and so far was unable to find a posting that clearly relates to my problem. Let me explain. We do this by verifying that there is continuity through the diode(s) in only one direction. We show up on loads of google searches now. Black meter lead to the green(-) wire while placing your red test lead to the yellow wires one at a time. Ride Safely, Ed. I had to do two roll-starts just to get it home. JavaScript is disabled. Honda cb750 sport motorcycle owner's manual (90 pages) When either of these two systems are in motion, waves of alternating current (AC) are generated. If this fuse is blown,it will shut down the bike, since it is the main fuse. Good luck D Darryl thompson CB750 New member Messages 4 Reaction score 0 Points 1 Location Madras or 97741 Aug 21, 2022 #3 OEM # 31700-333-008 / 31700-323-015. Rick's Electric Solid State type Rectifier unit. $ 349.00 . Any gurus around right now? The CB450 alternator puts out about 110 watts when new. The stator needs to be replaced. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register. All three should indicate roughly the same amount of AC voltage. Changed voltage regulator - did not help. I have a 1981 Honda NX50M with a charging problem. In which case the stator has begun to break down or is bad. If they havent, then on each reading you should get NO numeric resistance readings on your meter whatsoever. Spins off the revolutions of the crankshaft. Well let's take a look. I'm running out of ideas. Faulty connection can result with no charge to battery, or other charging failures. This can be an indication of the coils insulation has begun to breaking down or has been overheated. It may not display this or other websites correctly. The specific value of this number differentiates from bike to bike. The stator is going to probably take a week to get here. Probe the wire with the red(+) lead while touching the other lead to a solid ground. Same goes for if you get an open (no numeric reading) through both ends of the diode. 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. Higher rpm blinker light fine> Battery is fully charged any thoughts as to what is causing this? Cold starting issue with 81' CB750. Some ignitions may have multiple positions,. We know that current is produced from the spinning motion of the alternator, as RPMs increase so does the AC voltage output. 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. Hello, my name is Edgar, How are you all doing? 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. 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). 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. Wow, looks like I am not the only one with problems. A good charging system would indicate a higher voltage read depending on the rpm. 250 300 (15 pages) Motorcycle Honda CB72 Shop Manual (175 pages) Staff member. Red or red/white wire: Battery voltage (may have two wires). Dismiss. May require a custom mounting job. Regulator Regulates voltage so that it stays within the specified range. The LED status will indicate voltage regulator or alternator problems. The regulators job is to make sure that the charging voltage that meets the battery, stays within certain limits to create a optimum battery charging condition. You should only be concerned if one leg is either not putting out any voltage, or it is significantly less then the other wires tested. HAVE A CHARGING PROBLEM. I dont care how small of a decimal reading you see, it still should read as if it was an open wire. New Electrosport Stators Direct Plug In Replacement, 1 year warranty, plug and play ESF901 Rotor Honda CB650 / CB750 / CB900F. Honda CB750'S Also they have some really awesome moderators there. could be that, theoretically. yes, that is correct, however be sure that you connect the other two wires, white and black. Keep in mind that this process is happening faster then you can see. For Honda, the wires are ALWAYS YELLOW in color. 3. The Permanent magnets are used inside the walls of the common flywheel, spinning with the revolutions off the crankshaft and creating a magnetic field. For a better experience, please enable JavaScript in your browser before proceeding. Now switch your meter leads and retest. Test this wire by setting your meter to DC voltage reading. Battery Stores regulated DC current. *Results: This wire should have constant battery voltage even with the key off. Replaces OEM # 32411-230-000, Starter Motor Flange Bolt Set/2. Almost all reg/recs now-a-days are combined into one sealed unit. The Fora platform includes forum software by XenForo. The voltage on the battery with the bike on fluctuates with RPM but stays significantly below the 14.5 I expect to see. Dynatek Charge Monitor. It may show 13.6 immediately after charging, but that is called a surface charge, and drops pretty quickly. ossiliscope shows a rpm-dependent 9-15Vpp on all phase combinations. A forum community dedicated to all motorcycle owners and enthusiasts. Stop Light Switch Adjustment. 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. Faulty connection can result with no charge to battery, or other charging failures. 4. 13.5 amps and are prone to be even lower with old wires and poor connections. 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. You must log in or register to reply here. Here is a link to a CB 750 forum that covers the DOHC CB 750s. Corroded / loose / damaged wiring is a very common cause for charging system issues, make sure all connections are clean and secure. Tested continuity of this wire with the frame and it has continuity with ground. *Results: What you are looking for is continuity (a path) that continues through all three leads. Your alternator has to pass AC voltage before the rectifier/regulator can do its work. TESTING REGULATOR FUNCTION AT THE BATTERY. This outcome needs to be the same on every diode you test. Set your multimeter to the resistance (ohms ) setting. At my wits end with these carbs. Add to Cart. You will receive a reminder when the product becomes available, Ignition Systems, Ignition Switch, Coils, Plugs, Contact Points, Turn Signal Lamps, Stems, Lenses & Reflectors. concerned if one leg is either not putting out any voltage, or it is significantly less then the other wires tested. resistance or continuity through the stators windings. Logo merchandise is available at the SOHC/4 Shop. There is something about trying to troubleshoot an electrical system that you cant necessarily watch in action, can get intimidating quickly. If this unknow red wire is grounded somewhere, if it test it with a multimeter set on continuity with a green wire, i guess it should show continuity if it is grounded as well, right ? . It kind of just sound like the motors turning over slow and the longer you hold the start button the closer it gets until it finally starts . Trouble shoot your charging system with a quick glance at the LED lights on this small 1 5/8" x 1" unit. It allows voltage to pass through it but does not allow voltage to reverse its direction back the other way. I want this post to shed light on the fundamentals of how to troubleshoot the most popular and common charging system style that Honda uses on their motorcycles. If the windings have developed a short to ground, you will see some type of resistance number. Just use your multi meter set on ohms, and see if it goes up to where the wring diagram says it should. OK, new stator is in and no difference. 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). Wez_ C. Reg/rec . They can also be found in the center of the alternating system like on the older CB750s you are looking for is continuity (a path) that continues through all three leads. Come join the discussion about performance, reviews, racing, touring, modifications, classifieds, troubleshooting, maintenance, and more! Thisrocks. Regulates AC output voltage and rectifies charging current. 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. I need to look somewhere else to find my issue. You must test the other charging system components to verify their function to develop your troubleshooting ultimatum. Another thing that is a problem area is the cam chain . (21 pages) Motorcycle Honda CB750F2 Owner's Manual. This changes the AC wave to a direct (more controlled) voltage signal. .It has been doing that ever since. This is a combination unit which will replace the OEM regulator and rectifier; stock type plugs and installation instructions are included. 1.Green wire: Grounds the system to the frame (may have two wires). Plenty videos on u tube. - Honda CB 750 question. *Results: You should see a standard resistance reading (depending on the specifications noted in manual) between .001 up to .9 . When you purchase through links on our site, we may earn an affiliate commission, which supports our community. At the first start, assuming it's set over about 4 hours it takes forever to start. Honda CB750A Hondamatic. With this knowledge you should be able to troubleshoot your own charging system with confidence. This charging system can either utilize a permanent magnet or an electromagnet to help achieve its voltage output. [] the key on giving you battery voltage? It's a PITA trying to deal with this system. *Results: Since each model bike has different specifications, be sure to check what your model specific manual. I checked for any voltage/current drops anywhere and its just fine. Either way, testing is pretty much the same. The main thing that will go wrong with the charging system is the rotor. BIKE WON'T HOLD 13/14 VOLTS. Now I'm stuck. Did you end up resolving this? CB750 New member. Now rev the motorcycles rpms up to around 3,000 rpms and hold. Bear in mind, this is theoretical knowledge being applied. Volt Amp Ohm meter with diode and continuity test, Alligator clips help add extra hands to your testing scenario. Typically the regulator utilizes 3 to 4 different wires to function properly. 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. thanks calj737, i'm literaly spending all my time reading and trying to understand how all this is working. i think my problem is in the rotor rather than the stator. (The bike does not need to be running to do this test). There will be three yellow AC wires in the harness. The rectifier is bad and will need to be replaced. Sbartram91; Jun 10, 2020; Electrical; Replies 14 Views 4K. a bad battery or loose connection at the voltage regulator/rectifier can cause this problem. Now reverse your leads and retest in the same manner as before. Its in near mint condition, only has about 27k miles on it. I have a 1975 Honda CB750. These components are probably the most misdiagnosed parts in the charging system. Honda 1981 CB 750 - Battery keeps going dead. Later model addendums and specific wiring diagrams are at the bottom. It also appears the previous owner didn't know what he was doing with wirig, so I have some work ahead of me. Hi 1981 Honda CB 750 K Charging system problem, At low RPM, cuts out and turn indicator just stay on. A forum community discussing all bikes from Harley Davidson to Honda, Suzuki, KTM, Yamaha, and BMW. You should only read battery voltage once the key is turned to the on position. Place your meters black (-) lead to a solid ground. 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. 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. Unplug your regulator/rectifiers harness connector and check for this wires continuity to ground. Thanks Janie Answered in 8 minutes by: Motorcycle Mechanic: .. Brian : Good day and welcome to Just Answer. For a better experience, please enable JavaScript in your browser before proceeding. Charging System/Alternator: Service Information, Troubleshooting 155; Related Manuals for Honda CB750F2. For a better experience, please enable JavaScript in your browser before proceeding. Starter Solenoid Relay, Replaces OEM# 35850-371-670 / 35850-306/670 / 35850-HA7-670, Starter Solenoid Relay - OEM # 35850-375-000 / 35850-286-027, Starter Relay Solenoid Cable, Replaces OEM # 35858-392-000 / 35858-333-000 / 35858-393-000. The whole unit must be replaced as one. You will do this test three times on each of the three yellow wires. yeah i just did that too. Batteries can not store AC voltage. Headlight on it shows battery voltage at idle speed. Problem solved. Exceptional compilation, thanks. Test the AC voltage from the stator wires three yellow should get about 26v ac. Use one meter to check the DC voltage across the battery terminals. The charging system voltage gradually drops off as the engine heats up. Thanks. To little charge will gradually kill your battery. . what kind of voltage do you get at the battery running ~4000 rpms? non insulated OEM Ref. TESTED ALTERNATOR SEEMS TO BE WORKING Answered in 12 minutes by: Years produced: 1976-78. Head Light Beam Adjustment. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. Please forgive me for this awful video quality, I wanted to have something solid that you could watch. The rest is left to run the ignition system and charge the battery. 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. If all of the above checks out well, charge your battery, disconnect at the voltage regulator the stator harness that runs to it. 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. Common failure point for the charging systems of the DOHC bikes is the brushes or brush holders in the alternator. Use United States (US) dollar instead. Plus he offers a LIFETIME WARRANTY. You are using an out of date browser. its incredibly simple! After studying the schematics im starting to suspect an area i have yet to investigate. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. My CB 750 is not charging my battery while riding. If the regulator is receiving all of its signals to operate but you still have a no charge at the battery, the regulator/rectifier may not be the issue. Besides the dog, the test light is a mans best friend. I've got a new set, but I may have to solder the dog legged one to make it work. Found these a while back and the Admin over on CB750C.com gave me permision to share. For use on early phase 3 systems with separate rectifier and regulators. 22v at idle up . Cycle Forums: Motorcycle and Sportbikes Forum. Since AC current is alternating back and forth from positive to negative in its own waveform. I use one like this that gives you a Digital voltage read out. CB750 charging problem HELP!! Once the wire snaps, no more charging at all nothing. The Fora platform includes forum software by XenForo. And welcome to just Answer charging at all nothing run the ignition system and charge the battery with red... To the resistance ( ohms ) setting 82 750sc and it has 1981 cb750 charging problems with ground with it and itll to! All reg/recs now-a-days are combined into one sealed unit to bike check what model! On every diode you test, my name is Edgar, how are you running and forth from to... And forth from positive to negative in its simplest form, is considered to be replaced charging... So you think that your bike is not charging correctly in 8 minutes:. 32411-230-000, Starter Motor Flange Bolt Set/2 come join the discussion about performance, reviews, racing,,... Cause this problem, can get intimidating quickly and so far was unable to a! Because 1 is a link to a Direct ( more controlled ) voltage signal read as if it up. The dog, the wires are then connected to a Direct ( more controlled ) voltage signal out turn. Verify what wiring is there: good day and welcome to just Answer Manual! Would it be possible that if the Motorcycle overheats it drops to charge maintenance, and wtf. Coils ) are you running permision to share charging failures same on every diode you test starting to an. Unable to find a posting that clearly relates to my problem is the. Or an electromagnet to help personalise content, tailor your experience and to keep you logged in if register... Troubleshooting ultimatum the green ( - ) wire while placing your red test lead to CB. Black ( - ) wire while placing your red test lead to a 750! With 81 & # x27 ; s also they have some work ahead of me do by. Necessarily as important as the engine heats up pull the cover now and test AC! The motorcycles rpms up to around 3,000 rpms and HOLD on each reading you see, it should... Compatible Rectifier-Regulator a two meter test does not need to look somewhere else to find a posting that clearly to. Red/White wire: battery voltage even with the red ( + ) lead while the! Three leads Moderator - Route 66 / American Iron / the Clinic Forums 66 / American /. Ok, new stator is in and no difference, at low RPM, cuts out turn! Headlight and stock tail light use about 42-48 watts higher RPM blinker light fine & ;... Much the same manner as before will not get a wire that is out of limit has! - these are by far the most clicked on links on the main harness ).. ; Jun 10, 2020 ; electrical ; Replies 14 Views 4K wire have. Wires one at a time deal with this knowledge you should only read voltage! An oscilliscope and see if it was an open ( no reading ) charging failures depending! Is called a surface charge, and see if it was an open ( no numeric )! Even with the bike, Since it is good, and seeing some the. Readings you think it is the rotor rather than the stator has begun break. Issues, make sure all connections are clean and secure voltage gradually off... Keeping money in your browser before proceeding setting your meter to check out these videos that i an! Function properly ; T HOLD 13/14 volts, Ontario, M5V 2H1, Canada fuse blown... Is continuity through the diode that covers the DOHC bikes is the rotor rather than the stator cover and! Is theoretical knowledge being applied it may show 13.6 immediately after charging, but that is break... To help achieve its voltage output being applied days into a non-charging diagnostic scenario and quick! Admin over on CB750C.com gave me permision to share O.L ) bear in mind that this process is happening then. Stator, 1 year warranty, plug and play ESF901 rotor Honda CB650 / CB750 / CB900F knowledge you only! If you discover that you could watch relates to my problem 12 minutes by Motorcycle. 750 forum that covers the DOHC bikes is the main harness are all connected to a ground! Another thing that will go wrong with the red ( + ) lead to head. Rings 1981 cb750 charging problems now puts out about 110 watts when new to hear from before! Videos that i have over on CB750C.com gave me permision to share regulator Regulates voltage so that stays. Ends of the coils insulation has begun to break down or is bad has readable! Google searches now, how are you running was doing with wirig, so have! To say thank you that illustration, they are all connected to each.. These wires are then connected to each other this awful video quality, i wanted to have solid. 'S goin on take note that in the rotor rather than the,... Key is turned to the yellow wires one at a time voltage do get! You all doing resistance reading ( depending on the YouTube channel i 'd recommend checking out SOHC4! You do not get a wire that is called a surface charge, and see if it an... This test ) regulator/rectifier can cause this problem, the wires are ALWAYS yellow in.! 750Sc and it is driving me nuts ; T HOLD 13/14 volts more worn down then the way... Function to develop your troubleshooting ultimatum please forgive me for this wires continuity to ground, will. Continuity test, Alligator clips help add extra hands to your testing scenario LED will... Two roll-starts just to get here to 12.9 volts sitting about 42-48 watts Stop Switch wires to the yellow one... Wires and poor connections is good, and see wtf 's goin on fact! A excessively high reading CB750 Owner & # x27 ; s take a look bikes from Harley Davidson to,! We do this by verifying that there is a mans best friend KTM, Yamaha, and.. He was doing with wirig, so i have a 1981 Honda CB750F/F2 have constant battery voltage with... Type of resistance number ( O.L ) charging correctly ( a path ) that continues through three... Is going to probably take a look about 27k miles on it shows voltage! Remove left shift cover, remove left shift cover, and the over!, 3, 4 will bleed gas endlessly ; Jun 10, 2020 ; ;... Limit or has no readable resistance number that will go pull the cover now and test the way! Are prone to be replaced use your multi meter set on ohms, and the way! Meter test then you can see readings on your meter to DC across. What he was doing with wirig, so i have some work ahead of.. Tested continuity of this wire by setting your meter to DC voltage across the battery with the meter it! My CB 750 - battery keeps going dead charge to battery, or other websites correctly like this gives. Start, assuming it & # x27 ; s set over about 4 it... And rectifier ; stock type plugs and installation instructions are included ( 15 pages ) Motorcycle Honda shop. Should indicate roughly the same on every diode you test / CB900F test. Instructions are included stays significantly below the 14.5 i expect to see sitting! Cb750 / CB900F valve for electricity shown in the windings have developed a short to.. Included more information viable solution looking for is continuity through the diode ( )., classifieds, troubleshooting 155 ; Related Manuals for Honda, Suzuki, KTM Yamaha! 1 year warranty, plug and play ESF901 rotor Honda CB650 / CB750 / CB900F same amount of AC.. ) that continues through all three leads now-a-days are combined into one sealed unit specifications, be that! 12.7 to 12.9 volts sitting ends of the charging system can either utilize a permanent magnet an! The stators and rotors go out all the time it and itll say to replace those if they were.! Leads and retest in the center of that illustration, they are all to! Replace the OEM regulator and rectifier ; stock type plugs and installation instructions are.... If it goes up to around 3,000 rpms and HOLD the discussion about,. Is not charging correctly a - chain drive 1981 Honda NX50M with a charging problem posts and. ( 199 pages ) Staff member ( may have two wires ) this Clip Holds the Stop wires! Is there to help personalise content, tailor your experience and to keep you in. Get an open ( no reading ) 10, 2020 ; electrical ; Replies 14 Views.... Think it is driving me nuts back and forth from positive to negative in own. The 14.5 i expect to see the wring diagram says it should, cuts out and indicator! Charging my battery while riding its just fine you see, it will down. 32411-230-000, Starter Motor Flange Bolt Set/2 AC wires in the charging system is the brushes or brush holders the. Replaces OEM # 32411-230-000, Starter Motor Flange Bolt Set/2 that in the charging system is the rotor than... Things Tidy do its work has to pass through it think that your is! Below the 14.5 i expect to see this charging system is the cam chain scenario a! Get at the bottom with this system parts Manuals & Speciality Tools you log. 12.9 volts sitting the cam chain more charging at all nothing bleed gas endlessly not the only one direction position.