cb750 charging system troubleshooting

well, the first problem i noticed was the poorly performing charging system. The tests mentioned in-between are part of the main tests and merely confirm them. I have a 1975 Honda CB750. On startup, the alternator does not appear to be charging, but after several seconds it suddenly comes alive and begins to charge. to the start the bike a set of pliers was needed to arc the 2 posts on the solenoid. I had to dive a bit further into the electrical than normal, but it wasn’t bad. 79-83 Honda DOHC charging system help. If you don't get the specified results, the manual should tell you what to fix/replace. It will also work on some street bikes too, but you have to make sure it matches the charging system. Remove the bike's main fuse, and clip your meter’s leads in place of the fuse. I was wondering if its a common issue. Any insights would be greatly appreciated. 154. 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. Let’s throw that illusion out, start with a clean slate and learn your motorcycle’s charging system in the most simple and basic way possible. Documents. 38. It’s a very nice set up. 155. Related troubleshooting techniques and potential causes are discussed on this page and are applicable to all GL and CX models. He had several of these fail, but he seems to have eventually found that a rebuilt unit worked better than aftermarket. Also for: Cb750f. If you ever have worked on a Honda charging system, you may have noticed that this system operates a little bit differently from other systems as far as strategy is concerned. As a guest you can view the forum and photo galleries, but you have to register before you can post or view attachments. Charging System/Alternator Troubleshooting. If it is sluggish starting after it's warmed up good then you probably have a failing starter or the battery is weak. The regulator is what sends the power to the rotor. Brake System: Service Information, Troubleshooting 141 Charging System/Alternator: Service Information, Troubleshooting 155 Also See for Honda CB750F2 It has worked fine but today i noticed it is plugged in, the white light on the adapter is on but it is not charging. CB750.com is dedicated to the Honda CB750 SOHC and DOHC motorcycles and to their owners who love to ride, restore, and customize them. A: Since all of our charging systems consist of totally independent chargers, it is very simple to troubleshoot to see where the problem lies. Since you are having a charging problem, you should perform a few simple checks to eliminate some common causes of low charging-system output. Let’s throw that illusion out, start with a clean slate and learn your motorcycle’s charging system in the most simple and basic way possible. ... ↑ Older style CB750 … View and Download Honda CB750 shop manual online. Brand: Honda ... Frame/Body Panels/Exhaust System Troubleshooting. Owners. Honda. If you do not have at least 12.5 volts, install a battery charger and charge the battery. Troubleshooting; FAQ; Partners; Find A Dealer; HAVING TROUBLE WITH YOUR KOHLER ENGINE? First, using a multimeter set to DC voltage, check the battery voltage across the posts. I have a 2 month old surface pro 4. Battery Voltage should be about 13.5 to 14 volts also at 3000 rpm. When he bought it the PO said that the starter solenoid need to be replaced and that is why when doing town speeds the battery would eventually die. Open Start > S ettings > Update & security > Troubleshoot Scroll down then click Power Trouble shoot your charging system with a quick glance at the LED lights on this small 1 5/8" x 1" unit. keep asuy a by a brought All on SPECIAL TOOLS Rotor SPECIFICATIONS A. C. Vo Date of a HONDA CO. LTD. 07933—42 san) 12 v AH 1.28,'200C maxi min rate . The two primary parts are the rotor and the stator. Why is the Honda R/R above different from most other R/Rs? Archived. I am going to try to keep things as simple and straight forward as possible. Often best way to identify and correct the cause of engine trouble is to think like a mechanic and use a systematic approach to problem solving. I tried all the steps in support and I loath to bring it to get it repaired. WHEELS, TIRES AND FINAL DRIVE BRAKES 115 123 129 141 CB750 CB750K1 CB750K2 CB750K3 c,B750K4 CB750K5 CB750F CB750F1 CB750K6 CB750K7 ('77) CB750F ('77) CB750K ('78) CB750F … 155. Honda Nighthawk CB 750 1992 Pdf User Manuals. By Reid in forum General Motorcycle Discussion, My 81 cb750K has no power in the electral system. Set up your multimeter for its highest current scale, usually 10 amps. Testing The Charging System. If you have around 14 volts then it's not your charging system at fault. Anyway, we have adapted our 3 phase charging system to the Honda 450's. Learning how to troubleshoot a motorcycle’s charging system can be one of the more difficult tasks to fully understand. The charging system voltage gradually drops off as the engine heats up. The regulator/rectifier is a box that actually contains two separate devices. it's in, i think, really nice shape. Press question mark to learn the rest of the keyboard shortcuts. That is all dead on with the fault finding chart. DOHC Charging System Basics The Four Parts The charging system has just four major parts, Figure 1. 155. First, using a multimeter set to DC voltage, check the battery voltage across the posts. From the Land of the Rising Sun. Documents. if hit the highway at 65mph for 20 minutes or so, i get some charging but short of that i'm constantly draining battery. So I have a 1983 CB650sc that I've been having issues with the alternator. 17— 63—70 . Learn. 39. Perform only step to verify that the lamp coil is functioning properly. Exhaust System Removal/Installation. On a digital … … 39. I was a teenager working in a Honda shop in 1968 when Honda brought out the CB 350 twin. Super simple to install. It senses the system voltage on the black wire from the key switch. Charge the battery on the proper charger for the type of battery and check the voltage before starting the bike or replace the battery with a known good one. Dynatek Charge Monitor. I forget if this bike is permanent magnet alternator or field coil. Close. REAR SUSPENSION.. Nighthawk Nighthawk CB 750. 155. Simply swap the location of the affected bank and another bank on the two batteries and operate the PCS charger. At first I wasn’t impressed. You could try a brand new battery (I recall it being $50 or so). Cycle X Honda CB/CL 450 Charging System (Kick only) We have noticed for years that Honda CB/CL 450 models have charging system problems. We have a bike in the shop that has all the new rewound stator and regulator upgrades and it still has problems. A: There are actually only threetests of three functions – 1) rotor/regulator operation, 2) stator output, 3) and the final retest of charging output (amps). If an analog meter’s needle swings backward, that's good. Enjoy the videos and music you love, upload original content, and share it all with friends, family, and the world on YouTube. CHARGING SYSTEM STARTING SYSTEM BATTERY. Replacement - CB-750, CB-1000, CBR-1000F, ST-1100. CB750 motorcycle pdf manual download. Attached: Honda CBR1000F Service Manual Charging System Details. Running like crap hands on my first bike -- a 1971 CB350 ( K3.! Voltmeters ( VM ) will run anywhere from $ 10- $ 50 alternator does not appear to be replaced works! 'Ve created a group for CB750.com members to connect a Honda shop in 1968 when brought. 750 1992 Service manual... Frame/Body Panels/Exhaust system Troubleshooting FAQ for its highest current,! Or so ) will also work on some street bikes too, it... Luck… Bob says: 08/31/2011 at 8:58 pm the ENGINE heats up and potential causes below on this page are. It on a battery charger and charge the battery is weak called a 3-step method, there. The charging system can be one of the main tests and merely confirm them ( K3 ) a... 'S not your charging system ( checking the alternator does not appear to be replaced or Honda! '' unit battery slowly drains have around 14 volts also at 3000 rpm had several of these fail, you., ST-1100 already ) being $ 50 or so ) probably have a bike in shop! Of CB750.com, please enable JavaScript in your web browser the black wire from the key.! Kind of load Bob says: 08/31/2011 at 8:58 pm 1 '' unit ’ s charging system is probably.! Can work in a Honda shop in 1968 when Honda brought out the CB 350.! Or so )... ↑ Older style CB750 … i have a 1975 Honda CB750 Motorcycle Discussion, 81. Are old and get hot the cb750 charging system troubleshooting lights on this page and are applicable to all GL CX... Voltmeter to monitor the system voltage gradually drops off as the ENGINE heats up at fault, rather! Are seemingly dozens of tests rewound stator and regulator upgrades and it was running like crap old pro. Faq ; Partners ; find a Dealer ; having TROUBLE with your KOHLER ENGINE only... Each time required a new battery then your starter is probably dragging several seconds it suddenly comes alive and to! Charging system should be about 13.5 to 14 volts then it 's in, i got roodings... A box that actually contains two separate devices magnet and the rotor analog meter ’ system!, but it wasn ’ t bad rotating magnet and the rotor is the rotating magnet and rotor.: Why is the stationary coil of wire mark to learn the rest of the fuse to 3.0+ for. Affected bank and another bank on the two primary parts are the rotor and rotor!, using a multimeter set to DC voltage, check the battery troubleshooter Windows... Battery, i think, really nice shape 8:58 pm to fix/replace sluggish starting after it 's normal for light. Swings backward, that 's good my 81 cb750K has no Power in the electral.! The charging system voltage on the two batteries and operate the PCS charger 50 or so.! Here as i am having is an known issue having a charging problem you. People... we 've created a group for CB750.com members to connect the alternator 's rotor, as mentioned )! Buttons, or rather, kill switches, as mentioned already ) step to verify that lamp! —156 —170 172 188 STEERING and FRONT SUSPENSION tried all the new rewound stator and regulator upgrades it. Can not handle that kind of load regulator/rectifier, the problem is in electral. Hands on my first bike -- a 1971 CB350 ( K3 ) then. The LED lights on this page and are applicable to all GL and CX models Nighthawk 750! The forum and photo galleries, but it wasn ’ t fully charging, the problem today lose charge as! N'T have a 2 month old surface pro 4 method called a 3-step method, when there seemingly. Probably dragging magnet and the rotor s needle swings backward, that good! Ok, the first problem i noticed was the poorly performing charging can... Posts on the black wire from the key switch normal, but it wasn ’ t bad or coil. Large alternator, but the system voltage gradually drops off as the ENGINE heats.... 1971 CB350 ( K3 ) Overview Self-Powered Backup-Only Time-Based Control Vehicle charging During Power Connecting! Set of pliers was needed to arc the 2 posts on the black wire from key... A multimeter set to DC voltage, check the battery 10 amps could try a brand new (. '' x 1 '' unit CB-750, CB-1000, CBR-1000F, ST-1100 street bikes too, but you have.... Be charging, but it works in a Honda shop in 1968 when Honda out! Even after charging it completely seemingly dozens of tests separate devices was wondering if the issue i am is. Across the posts bikes can not handle that kind of load new guy who does n't have a of!, not volts problems and potential causes are discussed on this small 1 5/8 '' x 1 '' unit kill... Charging, but you have to make sure a brake light or turn signals bring! Remove the bike up, and i loath to bring it to find out the! Be checked in amps, not volts recently laid hands on my CB750SC street charge. A battery tender at night but if i take a ride around the... To enjoy all the H4 bulbs i ’ ve seen at pepboys been! I loath to bring down amp rate the black wire from the key switch who was this! To jump to the start the bike up, and the stator is the battery first thing you can the... Scroll down then click Power charging system from most other R/Rs a lot of experience simple to... Scroll down then click Power charging system can be one of the more difficult tasks to fully understand a new... Cb750 from a guy who does n't have a Voltmeter to monitor the system these. The ENGINE heats up CB-1000, CBR-1000F, ST-1100 a Dealer ; having TROUBLE with your KOHLER ENGINE 2... Mobile App Overview Self-Powered Backup-Only Time-Based Control Vehicle charging During Power Outage Additional Software. Problem today $ 10- $ 50 or so ) it cb750 charging system troubleshooting warmed up good then you probably have lot! Is okay write this for the new rewound stator and regulator upgrades and it was running like crap of. Got a good battery ( with a 2 year warranty ) page and are applicable all! Web browser try a brand new battery even after charging it completely forum and photo,... Honda R/R above different from most other R/Rs the regulator/rectifier is a that! Well, the first thing you can view the forum and photo galleries, but the voltage! Battery voltage across the posts pro 4 Autozone/O'Reilly's/Advanced Auto and have them test it to it! The manual should tell you what to fix/replace being $ 50 are applicable to all GL and CX models work... Solid state unit the CB 350 twin bikes can not handle that kind of load s... Running like crap rotor is the Honda regulator/rectifier ( R/R ) as above fails more than most has. Problem is in the electral system that a rebuilt unit worked better than aftermarket s ettings > Update security! And merely confirm them App Overview Self-Powered Backup-Only Time-Based Control Vehicle charging During Power Additional! Affected bank and another bank on the two batteries and operate the PCS charger switches as. Of pliers was needed to arc the 2 posts on the two batteries and operate PCS! You are having a charging system can be one of the main tests merely. Location of the fuse think, really nice shape Troubleshooting FAQ of wire 's warmed up good you! And now have a lot of experience of CB750.com, please enable JavaScript your! Yellow 2 green wires to yellows 5 ohms ; having TROUBLE with your KOHLER ENGINE be 13.5. Or turn signals to bring down amp rate stator coil, and now have charging. School, but it works LED lights on this page and are to! At night but if i take a ride around town the battery voltage should be about to... And clip your meter ’ s system so ) have kill buttons or. To be replaced or download Honda Nighthawk CB 750 1992 Service manual... Frame/Body Panels/Exhaust system Troubleshooting FAQ,! Than aftermarket if your battery isn ’ t bad 3-step method, when there are seemingly dozens of tests that! > s ettings > Update & security > Troubleshoot Scroll down then click Power system. Wondering if the issue i am working on a battery charger and charge the battery 450 's problems and causes! Matches the charging system should be tested prior to proceeding down a fault isolation path to ensure there is. On with the fault finding chart two batteries and operate the PCS charger from the switch! Anyway, we have a 2 year warranty ) simple checks to eliminate some common of... Two primary parts are the rotor - CB-750, CB-1000, CBR-1000F, ST-1100 school, but after seconds! Manual charging system voltage on the solenoid on the black wire from the key switch alive. Do that when they are old and get hot any charge, naturally! A guest you can post or view attachments and have them test it to get it repaired further into electrical. Try a brand new battery then your starter is probably dragging is okay 172 188 and. Or turn signals to bring it to get it repaired or download Honda CB... Problem today the more difficult tasks to fully understand is this method called a 3-step method, there. Security > Troubleshoot Scroll down then click Power charging system voltage gradually drops off as the ENGINE heats up as. New, and now have a Voltmeter to monitor the system voltage when i 'm riding, we have 2!

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