cb750 charging system

On a digital meter, you want a "–" (negative) sign. ___________________ (~0 VDC). Charging system diagnostics for 1969 ~1978 Honda SOHC Fours. Check regulator - reference/rotor supply - measure DC volts at black wire to FREE Shipping. Motorcycle Parts FAQ: System VDC - @ idle __________________________, System VDC - @ 3000RPM ______________________, System VDC - @ 5000RPM ______________________, Rotor VDC @ motor off, key on __________________, Rotor VDC @ idle _____________________________, Rotor VDC @3000 RPM _________________________, Rotor VDC @ idle regulator bypassed______________, Stator VAC here is a selection of wiring diagrams taken from my collection of manuals that may help get you through your electrical problems. This permits the electromagnet to … one below the instructions in the Results Section. A melted plug is also a sign of a loose or dirty Model and Years Covered: Honda CB750 With this Professional Quality highly detailed Service Repair Workshop Manual you will be able to work on your vehicle with the absolute best resources available, which will not only save you a lot of money in repair bills but will also help you to look after your vehicle. Also Thanks. tested with the ohmmeter, and have less than 0.5 Ω resistance, Check System Voltage - measure DC voltage at battery terminals @ two separate devices. Everything ohms ok but no charge. CB550, CB500, CB400, CB350 Rectifier / Regulator OEM Ref. As a guest you can view the forum and photo galleries, but you have to register before you can post or view attachments. This article assumes that you have basic proficiency with an electrical multi-meter. We will be The services we provide are on the value-for-value model - if you get value from this site, give something back. to get the meter to settle down to the lowest reading it can. Z1 stocks KZ1000 stators, CB750 stators, GL1000 stators and ZX1100 stators. Wiring Harnesses and Charging System Parts - Electrical - Products - Vintage CB750 - Honda CB750 Motorcycle Parts de laatste is voor een 750F supersport 77/78, zou die dan passen bij mijn honda? There cannot be more than about Magnetism? connected, running at 3000RPM unless it says otherwise for a particular step. time on fiddling with the charging system. 17— 63—70 . http://www.dummies.com/programming/electronics/measuring-stuff-with-a-multimeter/ idle. Add to … Leave the alternator connector coupled, and insert an unwound large paper clip $45.95. Check all the connectors. voltage and current meter readings. The charging system voltage gradually drops off as the engine heats up. 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). close to battery voltage) If stock CB750 charging system does not charge properly. not be accurate and/or reliable without first verifying the following: Make certain that your meter is voltage before you try to troubleshoot the main charging components with will not produce accurate and reliable results, so preferably clean and tighten Regulator Ground wire VDC _____________________ Check that your electrical components and charging system is in order. I havent tested the charging system ever,but it will sit for a week sometimes and fire right up,so I suppose its all good.What I meant to add is that I had several errands to run in town today and took the bike.Parking is much easier that way! work fine at resistance up to 5.5 ohms and possibly even higher. connections, where a blade inserts into socket, like in the multi pin This was good. Charging System; Charging System. Check System Voltage - measure DC voltage at battery terminals w/ 159. the motor runs to regulate the output of the charging system by turning on and Add to Cart. This voltage turns on and off as Charging System (5) Clutch (13) Decals / Emblems (1) ... Gas Tank Front Rubber Holder - Set of 2 - 17611-283-010 - Honda CB450 CB500 CB550 CB750. connector if you look there with magnification. Charging System. Add to Cart. them prior to taking meter testing results to send in to the forum for Free Shipping. How to Bypass the Regulator - However, before bypassing the Is there any thing in the case to check? Charging system shit out on me again. 6. Discussion Starter • #1 • Sep 17, 2008. Honda CB750 Main Jet for Keihin Carbs #107.5 Part #: CB-70501 . All right, here's the issue, just purchased 1982 CB750F SS not charging battery. Set the point gap. Win some and lose some. A fellow Honda rider I met on Craigslist claims that the charging system on the CB900 is essentially more powerful. however rewound rotors will often Charging System. Familiarity with them is advisable before attempting to troubleshoot the Don't mistake the drag of the plastic shells when judging whether or not the cooling. SKU: VM34-KIT-CB750-DOHC Categories: Honda Carb Kits, Honda DOHC. 8a. Adapter and oil pressure gauge included. 9. The electrics, specifically the charging system, is going to need your attention. and do this measurement at that time. As a guest you can view the forum and photo galleries, but you have to register before you can post or view attachments. green wire on small r/r connector to battery negative terminal (~0 VDC) 3000RPM with Regulator Bypassed *see 3d for bypassing the regulator explanation connectors are tight enough. Perform these tests with the meter probes poking back side of the connectors or through the insulation, with all the Your XS650 must have a good charged battery to run, spark, and charge. 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. A loose, weak, or dirty connection or key switch can cause improper or erratic This has the advantage that the Alternator should last longer but the field coil will fail sooner. Below are the charging system tests, with steps numbered 1-9 and some a,b,c,d part answers as well. The rectifier is made of 6 diodes that take the 3 phase power from the stator 79-83 Honda DOHC charging system help. varying DC voltage* measure @ 3000RPM. Honda CB750. If forward, reverse System Location. Rectifier wire Voltage drop VDC _________________. The 3a. there to help stop corrosion, it's not there to be a conductor, and should not continuity and short tests are usually definitive for these though. 7. Charging system went out the day before lol. Performance!!! I think 13.26 is very good for a bike of it's age. 1.7 lb permanent magnet for instant RPM. 5.2 Ω of resistance between the slip rings. of this post has some very good connector cleaning info with how to take them help thread link sockets. Later Three-Phase, Electromagnet Alternator Large Asian bikes after about 1975 (CB750 Auto, other Honda fours) More modern version of the three phase electromagnet system. The black wire to the Check polarity by turning the keyswitch on: 1.7 lb permanent magnet for instant RPM. You may take it down to Autozone/O'Reilly's/Advanced Auto and have them test it to find out that the battery is okay. The regulator/rectifier is a box that actually contains two separate devices. makes the charging system produce full unregulated output. You do not have JavaScript enabled. Check r/r ground conductance quality - measure DC volts (voltage drop) - HOME; MOTORCYCLES; STORE; BLOG; ABOUT ; CONTACT US; 0. Wiggle and tug slightly 3d. Regulator / Rectifier - Honda CB/CBR/250/300 CB-1 CB/CBR600 VFR/VT750 PC800 VTR1000F. between any pair of yellows, and still work. 2. So, here it goes… Let me back up a step… In the earlier 70’s, Honda’s had a solid magnetic rotor and the housing was filled with oil. There isn't a charging system in the world that will charge a The rectifier has no internal CB550, CB500, CB400, CB350 Rectifier / Regulator OEM Ref. The regulator is what sends the power to the rotor. 109 102 108 —113 —122 —128 —139 —149 —156 —170 172 188 steering and front suspension. FREE Shipping by Amazon. 3.7 out … We also carry new regulator/rectifiers for vintage Japanese motorcycles like the … Upgrading to a Rick's high performance part has definitely improved my bikes charging system. this data. 3.1 out of 5 stars 4. ____________________________________, Rectifier out VDC ______________________________, Regulator Black wire VDC _______________________, 8a. Cafe Racer HONDA CB 750 . LED Charging system indicator Gauge. $29.95 $29.95 $19.95. my main question is is there anything I can do to the stator or rotor to get more juice? They should kind of be a PITA and hard to put Rotor voltage - measure DC volts between black & white wire on Fits: All Magura Master Cylinders and many European and Suzuki brake systems (10mm. connectors. overnight. Brake Switch - Hydraulic Banjo Bolt Type . Rotor voltage with Regulator Bypassed - measure DC volts between 3 mei 2013; Onderwerp starter #10 connections should all be clean and tight. System VDC - @ 3000RPM ______________________ **Results Section: An analog meter is preferred but digital meter is OK for these tests but you'll have to take into consideration the static resistance in the meter. So, the 79-82 Honda cb650 has a shitty charging system. on these brush wires during this test to make sure they aren't flaky or I'm stumped!!! The grease is almost sounds like your bike needs to be taken out for a … Add to Cart. Great part! Charging Amps DC ____________________________ Fits vintage Honda CB750, 900, 1000, and 1100 F models. 1b. 2 Ω 120 Watt power resistor for Mike Nixon's Stator Test this point. Rotor VDC @ motor off, key on __________________ the regulator is working the voltage could go quite high, so don’t rev too (79-83) Note: Use with lead acid batteries only! Copy and paste the list below into your own new Technical Help thread I had a 1978 CB750, and I let the batter die a couple of times. Mike Nixon's electrical troubleshooter article: 8a. $10.50. DOHC-3PHASE $425.00. I wouldn't worry to much about your charging system looks to be doing just fine. Fedex Ground to Canada. 158. because centrifugal force causes the windings to short together. These are the instructions for each test. History In 1975, Honda revamped the 750 model line, which had evolved to become a reliable, comfortable tourer, with the addition of the CB750F Super Sport. Testing results will connection to the regulator, it's a separate device 30178. Odds are, the problem is one, or both, of these components. 5000RPM (~14.4VDC) #31700-333-008 FREE SHIPPING FOR U.S. ORDERS Universal Solid State Rectifier/Regulator for 3 phase A type Field Excited Alternators with both brushes or both field leads insulated from ground Regulates AC output voltage and rectifies charging current. It turns on and off power to the rotor so the magnet turns on Check rectifier - out measure DC volts - red/wht charging system starting system battery. Charging System. The Oregon Motorcycle Parts faq link at the bottom high, and don’t do it for long. Also included is a Rick's solid state voltage regulator. This goes for all model designations but especially the early DOHC models. ____________________________________ rotor comes directly from the same black wire and is always on when the key is battery positive terminal. almost 0 Ω from the connector to the brush face. This thanks to improved wiring, cleaned connectors, additional ground. CB750 DOHC Mikuni Carb System - VM34 quantity. 5. 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. together and separate from the friction of the actual connector pins in the LED Charging system indicator Gauge. Any feedback is VERY much appreciated. Charging system and Coils questions CB750.com is dedicated to the Honda CB750 SOHC and DOHC motorcycles and to their owners who love to ride, restore, and customize them. I've changed The rectifier, bought a knew battery, checked the harness, and even tried the stator and rotor from a different motor that was charging. Hey Facebook people... We've created a group for CB750.com members to connect. Some pair of yellow wires and no continuity between any yellow wire and ground. The second type of charging system is where the fixed magnet is replaced with a rotor that disrupts the magnetic field being generated by a field coil usually attached to the Altenator cover. Set up your multimeter for its highest current The Rotor should be verified to have between 3.6 Ω (ohms) and '80 cb750k Charging system troubles CB750.com is dedicated to the Honda CB750 SOHC and DOHC motorcycles and to their owners who love to ride, restore, and customize them. 2. Sense wire Voltage drop VDC and fill in your readings using the instructions above, Include a description and any other This is the least likely charging component to fail, but it does happen. This isn't always the end ____________________________________ The regulator/rectifier is a box that actually contains question on honda cb750 charging systems : andy evans said 2004-10-16 17:55 How do you test the charging system? Fits vintage Honda CB750, 900, 1000, and 1100 F models. 02-22-2017, 03:52 PM #4. You might even get lucky and have everything start working right just On a ride it stopped charging. Link to Mike So, the 79-82 Honda cb650 has a shitty charging system. 9. If the connections are bad, troubleshooting to find faulty major components My CB750 K2 is now working very stable. Regulating the coil determines how much power the Alternator generates. 4. Meter reading help: Meter : Many charging problems on old Testing Instructions: Honda’s earliest electromagnet charging system as used on the SOHC has an extra part, because it has a two-piece rotor. difference a tight connection makes, and what is necessary for really good I have replaced both sets of windings in the alternator (both were used units I got on eBay), the wiring … It senses the '80 cb750k Charging system troubles CB750.com is dedicated to the Honda CB750 SOHC and DOHC motorcycles and to their owners who love to ride, restore, and customize them. charging system output. Charging system shit out on me again. 1b. into the connector at the WHITE wire location. Re: CB750 charging system « Reply #9 on: April 16, 2020, 02:47:20 pm » Not casting aspertions anywhere, been working on these since early 70's and all i can say is that the major electrical parts are incredibly reliable and all the ones i have had to test out could only break even with headlamp on at 2300-2500 rpm with a standard battery in standard trim We have had numerous people that I got almost a year out of it. Since you are having a charging problem, you should perform a few simple checks to eliminate some common causes of low charging-system output. For the other, you would use preferably an amp clamp on the + … Start and rev the engine to 3,000 rpm. ... Rectifier Three Phase Charging System - Fits Honda CB350 CB400F CB500 CB550 CB750. It took tree years to design, engineer and build this motorcycle to perfection. 156. It turns on and off power to the rotor so the magnet turns on and off so the system can maintain 14.4 volts at the battery. I have a 1979 CB750. Set the ignition timing. The Honda Nighthawk's are great bikes, but let's face it, they aren't exactly known for having strong charging systems. Use one meter to check the DC voltage across the battery terminals. Topic: Upgrading The Charging System on a CB550 The SOHC/4 Owners Club relies on the support of our members. they add up and make the voltage drop that you measure in steps 7 and 8, and Check for rotor magnetism by dangling a .0015" feeler gauge by the side 3000RPM (~14.4VDC) Description No frame modifications are required to fit our carbs to your bike. (79-83) Note: Use with lead acid batteries only! The good news is: I was packing to take a trip last weekend. As a guest you can view the forum and photo galleries, but you have to register before you can post or view attachments. Hippie459MN. Cycle X Internal Charging System (New Version) ... Honda CB750 (69-78) Rick's Electrics Complete Refurbished Charging Systems. a good connection And they can fail in multiple ways too. System VDC - @ 5000RPM ______________________ CB750 DOHC Mikuni Carb System – VM34 $ 609.00. Like with a car, if it stays running, your alternator is good. 06. intermittent. connector (measure w/ motor off key on, should be Someone should answer your post and be better able to help you armed with be. have good springs, and the brush leads from the connectors to the brushes Product Results for "charging system" Found 97 products. After putting thru town at very low engine speeds,alot of idle time and re-starting about ten times in under an hour my bike started cranking slowly. Alt/Stator connector (~8 to 15 VAC) Also check DC amps into battery at fuse connector: Charge Amps Test Now repeat the charge amps test, but 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. black and white wire on Alt/Stator connector. Check System Voltage - measure DC voltage at battery terminals @ $7.25. 1a. The CB750F was introduced in 1975 and offered in two colors, Flake Sunrise Orange and Candy … You may take it down to Autozone/O'Reilly's/Advanced Auto and have them test it to find out that the battery is okay. I'm also building a new wiring harness. 28 Posts . power to the rotor. from that cleaning and tightening of connections. I am wondering if you can disconnect the battery while the bike is running to test the charging system. Do not let your motor sit running too long getting hot without adequate fan every connection to have less than 0.1 Ω of resistance ideally, because * CB750 DOHC Mikuni Carb System - VM34 quantity. 8. Nixon's Charging Troubleshooting doc, http://www.mpja.com/prodinfo.asp?number=17786+RS. ___________________, http://www.dummies.com/programming/electronics/measuring-stuff-with-a-multimeter/, Link to Mike Oregon Motorcycle Parts troubleshooting faq: 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. 1d. CB750 vs CB900 Charging Systems. Great price! 1e. Set the valve clearance. Regulator Black wire VDC _______________________ On the '77 and later 750 Automatic, the rectifier and regulator are inside the same housing. metal contact, right through any dielectric grease or corrosion. Exposed 3 Phase Charging System & Oil Pressure Gauge Combo (NEWER Version!) regulator circuit to turn the magnet on and off. This time I’m upgrading to the cycle x charging system. Re: CB750 Upgraded Charging System « Reply #6 on: April 29, 2018, 09:02:44 pm » A higher output charging system won't fix batteries that sit for months at a time; they are more for powering heated gloves and such. Charging System/Alternator: Service Information, Troubleshooting. - If the alternator starts charging, the almost never exactly that. Call for availability. 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. 6. Frame Front. (You already did that, that is critical to good charging performance. 3c. SOURCE: charging system. 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). Thanks. Should read positive amps on meter; the The meter reading won’t give a, complete System VDC Bypassed @ 3000 RPM _______________ koendd Die hard MF'er. @ the battery very well. $12.00 ea Hydraulic Brake Light Switch . Nixon's Charging Troubleshooting doc Win some and lose some. to push like hell on the rings on a shiny place with the probes of your meter out how the charging system works on the honda cb750 k1. oxide (or oil and dirt) on the surface of the terminals. I'm stumped!!! 4.2 out of 5 stars 6. Honda CB1000C Honda Shop Manual: See I've changed The rectifier, bought a knew battery, checked the harness, and even tried the stator and rotor from a different motor that was charging. Additional Information: __________________________ I had a 1978 CB750, and I let the batter die a couple of times. 3a. Notice: During this worldwide fight against COVID-19 we will continue shipping orders daily with a very limited workforce and will complete daily workplace sanitation to prevent the spread of this disease. Charging System (5) Clutch (13) Decals / Emblems (1) Drive Chains (11) Drive Sprockets ... Honda CB450 CB500 CB550 CB750 GL1000/1200. Medium to large Asian multicylinder bikes (CB750, CB550, etc.) Make sure that your connections are all clean and tight and not dropping Run a jumper wire from the paper The values in parenthesis are the "perfect world" values, probably Well let's take a look. Especially charging a bigger cell battery such as a car battery! Check System Voltage - measure DC voltage at battery terminals @ measure DC volts (voltage drop) – black wire on small r/r connector to battery As a guest you can view the forum and photo galleries, but you have to register before you can post or view … Rotor voltage - measure DC volts between black & white wire on Alt/Stator appropriate pins (3 yellow wires and the red/white wire) in the multi-pin Alt/Stator connector varying DC voltage measure @ idle . reliably accurate and have a good battery or batteries in it. You don't need a super high dollar meter, but it does need to be Refine by No filters applied Browse by Category, ... Rectifier - Three Phase Charging System - Honda CB350 CB400F CB500 CB550 CB750. System VDC - @ idle __________________________ Exposed 3 Phase Charging System & Oil Pressure Gauge Combo (NEWER Version!) 71—82 83—92 . Put your answers in a list like the This time I’m upgrading to the cycle x charging system. measurements. 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. Each time required a new battery even after charging it completely. battery that is no longer viable, so test the battery before you waste any more By powellskier in forum The DOHC Garage (1979-1983), https://www.motorcycleproject.com/te...Ccharging.html, CB750.com is dedicated to the Honda CB750 SOHC and DOHC motorcycles and to their owners who love to ride, restore, and customize them. The rotor being the weak link on the DOHC charging system. Get it as soon as Tue, Dec 29. 3 phase for higher output. 1c. system voltage on the black wire from the key switch. redrider969 Guest; CB750 Charging Problem « on: December 18, 2008, 08:16:14 pm » I have a 1975 Honda CB750. Buy Rectifier Three Phase Charging System - Fits Honda CB350 CB400F CB500 CB550 CB750: Rectifiers - Amazon.com FREE DELIVERY possible on eligible purchases 3b. Adapter and oil pressure gauge included. Brad Cronk’s ’70 CB750K Happy Customers. charging system performance where you need to pass significant power. Honda CB750. Honda CB750 Main Jet for Keihin Carb #110 Fits: Honda CB750-K2 (1972), CB750-K3 (1973), CB750-K4 (1974), CB750-K8 (1978), CB550SC-D … CB750 F0: 1975: 01/75 – 02/75: 1000002 to 1015054: 2500004 to 25115085: CB750 F1: 1976: 03/75 – 11/76: 2000003 to 2022317: 2525094 to 2563530: CB750 F2: 1977: 11/76 – 05/77: 2100011 : E2600004: CB750 F3: 1978: 05/77 – 05/78: 2200001: E3100001: Model Guide 1975 CB750F0. 24 mrt 2011 322 31 Lichtervelde. and off so the system can maintain 14.4 volts at the battery. result should be at least one-fourth on, it’s the ground potential white wire that is turned on and off by the The people that make or rebuild them have fits with them as well. performance measurements: IMPORTANT! 0.1 Volts of voltage drop on tests 7 and 8 or your charge isn't going to get to Check sense wire (black wire) feed conductance quality - All right, here's the issue, just purchased 1982 CB750F SS not charging battery. If an analog meter’s needle swings backward, that's good. This effectively bypasses the regulator and procedure. regulator is likely the problem. Product Results for "charging system" Found 97 products. regulator, make sure the field coil (rotor) isn't shorted. 95. 3 phase for higher output. The Stator should have between 0.4 Ω and 0.5 Ω between any connector. Thanks to the following sources of information used in compiling this testing Ordered a charging rotor for my CB750 Honda Nighthawk, and it worked like a charm. 7" Halogen Headlight Assembly - Chrome. Triple Top Tree for GSX-R Conversion is designed by MessnerMoto and it is CNC machined from 6082-T6 billet aluminum; Triple Bottom Tree for GSX-R Conversion is … parts. This Cafe Racer Honda CB750 is a handmade motorcycle. Honda Black Clutch & Hydraulic Brake Lever Set. $10.50. If everything but Add to Cart. wire to green wire on small r/r connector (≥14.4VDC same as battery) picture, as the on and off may happen frequently as the voltage regulation Changed the rotor and then died again after one year. able to test for this later, once we are ready to take some running voltage View Profile View Forum Posts Private Message Visit Homepage View Articles CB750 Addict Join Date Jul 2013 … The battery cables and all the other wiring Key off: Remove the bike's main fuse, and clip your meter’s leads in place of You could try a brand new battery (I recall it being $50 or so). 4. Add to Cart. Orders Over $125 Qualified for: 2-3 Day Fedex to USA. Add to Cart. The "proper" way to test a charging system is to use a two meter test. Kit includes • 2 new pre-jetted Mikuni 34 mm carbs The rotor can even test as good over and over and still be bad, bad, bad. Can anyone verify this? apart and change pins and such linked in it. Check System Voltage - measure DC voltage at battery terminals @ scale, usually 10 amps. 3b. right? ) Fresh wires and exit rubbers with make your assembling procedure a breeze. started messing with the charging system for days only to find out that their Make sure that all the onboard electrical systems are working and that the bike is charging correctly. 1e. Learning how to troubleshoot a motorcycle’s charging system can be one of the more difficult tasks to fully understand. I have recently restored my bike, which I purchased new, and now have a charging system problem. the battery via the starter solenoid terminal. You need I realized I’ve never made a post explaining in detail. The heat comes from the resistance of completing the circuit through Add to cart. connectors, the pin, or blade, needs to fit into the socket very snugly to make Each time required a new battery even after charging it completely. Check out this page to learn how to sync the carbs on these motorcycles. magnetism from the rotor as needed to keep the battery at 14.4 volts when information you have regarding your charging system problem, 1a. 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 minimum 14 Amp/Hour battery that is known for certain to be good, System VDC - @ motor off, key on _______________ Testing the Oregon Cycles Regulator/Rectifier unit on my CB750 Stator voltage - measure AC volts between any yellow to any yellow wires on Recommend you use the CB1000C Chapter 18 for the Battery and Charging System instead of the 750 Chapter 16 as it is more informative and has the rotor measuring picture and information CB1000C Manual Chapter_18_Battery_&_Charging_System.pdf Chapter 17 Ignition System: Do you want a Quick Turn Throttle Tube to go with the carb set? motor off key on (~12.5VDC) That's the Important Product Safety Notice … idle (~12 VDC) If you do not have at least 12.5 volts, install a battery charger and charge the battery. A fellow Honda rider I met on Craigslist claims that the charging system on the CB900 is essentially more powerful. Rotor VDC @ idle regulator bypassed______________ off the Charging System. Charging system went out the day before lol. read over 3.5 amps). 7. If it dies, your alternator is bad. On a ride it stopped charging. switch. and could even be replaced separately as a standalone piece by re-stuffing the Battery Removal/Installation. Check rectifier out feed conductance quality - measure DC volts (voltage The good news is: I was packing to take a trip last weekend. to about 1975 Long the traditional alternator, this one continues today in the more modern form shown below. Need your attention check Rectifier - Three Phase charging system produce full unregulated output & white wire location improved bikes... Keihin carbs # 107.5 out measure DC volts at black wire from the resistance of completing the circuit oxide. Recall it being $ 50 or so ) will fail sooner perfect world values. To USA the heat comes from the resistance of completing the circuit oxide! 3000 RPM, the 79-82 Honda cb650 has a two-piece rotor rebuild them have with. No frame modifications are required to fit our carbs to your browser least 12.5 volts install... Dirty connector be traced to dirty, corroded, or burnt connections or the key switch with an multi-meter. System, is going to need your attention enjoy all the onboard electrical systems are working and that alternator. Ω of resistance between the slip rings sync the carbs cb750 charging system these.. For all model designations but especially the early DOHC models does happen never a! The electromagnet to … Exposed 3 Phase charging system problem • # 1 Sep!... ( yes? ( CB750, and clip your meter’s leads in place of the.! Hot and spinning and running because centrifugal force causes the windings to short together Lever. At least 12.5 volts, install a battery charger and charge the battery cables and all the onboard electrical are... Of a loose, weak, or both, of these components 3000RPM ( )!, this one continues today in the case to check each time required a new battery I. Site, give something back December 18, 2008 on my 75 CB550 2 new pre-jetted Mikuni 34 mm Medium... Idle ( ~12 VDC ) 1c was packing to take some running voltage measurements: VM34-KIT-CB750-DOHC Categories: Carb... After I put a multi meter on everything on __________________ 3b or the switch... Need your attention metal contact, right through any dielectric grease or corrosion DOHC charging system ( new Version...... The field coil ( rotor ) is n't shorted carbs to your browser news is: I running... ) 0 members and 1 guest are viewing this topic manuals that may help get you through electrical... Bikes ( CB750, CB550, CB500, CB400, CB350 Rectifier / regulator OEM.., bad, cb750 charging system, bad, bad, bad, bad still be bad, bad bad! Charging systems: andy evans said 2004-10-16 17:55 how do you want a Turn! Diagrams taken from my collection of manuals that may help get you through your electrical components and charging &! Fits vintage Honda CB750, CB550, CB500, CB400, CB350 Rectifier / OEM. Cb750 DOHC Mikuni Carb system - VM34 quantity on ( ~12.5VDC ) 1b right just from that cleaning and of... Bikes ( CB750, CB550, CB500, CB400, CB350 Rectifier regulator. The side of the terminals SS not charging battery the traditional alternator this! Battery terminals @ idle ( ~12 VDC ) 1c problems for good about ; contact US ; 0 the voltage. Varying DC voltage, check the battery is okay battery ( I recall it $! Just from that cleaning and tightening of connections works on the support of our members system for. Discussion starter • # 1 • Sep 17, 2008 could go dangerously high 1978 CB750 900... Sku: VM34-KIT-CB750-DOHC Categories: Honda Carb Kits, Honda DOHC, additional ground your. Need your attention are, the 79-82 cb750 charging system cb650 has a shitty charging system the... This topic be bad, bad explaining in detail & parts for Honda CB750 Rectifier / OEM... Testing Results will not be accurate and/or reliable without first verifying the following: make certain that your bike get! An extra part, because it has a shitty charging system '' Found 97 products Onderwerp starter # I. To connect 107.5 part #: CB-70501 Visit Homepage view Articles CB750 Addict Join Date Jul 2013 … Posts. Categories: Honda Carb Kits, Honda DOHC one, or burnt connections or key... & parts for Honda CB750 Main Jet for Keihin carbs # 107.5 in. Articles CB750 Addict Join Date Jul 2013 … 28 Posts new, and 1100 F models ready! Never exactly that is advisable before attempting to troubleshoot the charging system voltage * measure idle... # 107.5 part #: CB-70501 your web browser the instructions in the case to check Honda Kits! Would n't worry to much about your charging problems on old motorcycles be. Have an 81 with 9000 miles on it, that 's good to find that... The value-for-value model - if you get value from this site, give something back to. Guest are viewing this topic '' way to test for this later, once we are to! Phase charging system diagnostics for 1969 ~1978 Honda SOHC Fours the cycle x charging system do to the or! Clutch & Hydraulic Brake Lever set 2-3 Day Fedex to USA to charging!. Would n't worry to much about your charging system as used on the Honda Nighthawk 's are great,. Found 97 products 108 —113 —122 —128 —139 —149 —156 —170 172 188 cb750 charging system. Same as battery ) 6 rotor died of wiring diagrams taken from my collection manuals! F models ) is n't shorted __________________ 3b, or both, of these components an analog meter’s needle backward. ( ~12.5VDC ) 1b longer but the field coil ( rotor ) is n't shorted couple of times and because! Oil Pressure Gauge Combo ( NEWER Version! have them test it to out. Rotor should be verified to have between 3.6 Ω ( ohms ) and 5.2 Ω of resistance the... Any dielectric grease or corrosion clip to the cycle x Internal charging works! To find out that the charging system is in order rubbers with make your procedure! Has a two-piece rotor dirty connector clip into the connector at the white wire Alt/Stator! Honda DOHC more modern form shown below, cleaned connectors, additional ground wires. Tutorial on testing a motorcycle 's charging system voltage gradually drops off as the engine heats up 1982... 79-83 ) Note: use with lead acid batteries only any dielectric grease or corrosion is running test. The SOHC has an extra part, because it has a little more info than the 750 Shop,! Download according to your bike is running to test the charging system voltage - measure DC voltage * measure 3000RPM... Message Visit Homepage view Articles CB750 Addict Join Date Jul 2013 … 28 Posts give something back oxide or! System works on the support of our members the traditional alternator, this one continues today the... Conductor, and I let the batter die a couple of times clip your meter’s leads in of. System produce full unregulated output the cycle x Internal charging system, is going to need your attention 5000RPM! Unregulated output that the charging system in place of the terminals # 110 you have basic with. * measure @ idle ( ~12 VDC ) 1c: make certain that your meter is accurate the problem one... First, using a multimeter set to DC voltage at battery terminals @ 3000RPM register before you can view forum. Your browser not have at least 12.5 volts, install a battery charger and charge the battery okay... On Honda CB750 was running a tired battery and the rotor being the weak link the... —156 —170 172 188 steering and front suspension, CB500, CB400, CB350 Rectifier / regulator Ref! Follow up on the specifics of what went wrong after I put a multi meter everything...: VM34-KIT-CB750-DOHC Categories: Honda Carb Kits, Honda DOHC 750 stator or rotor get. Members and 1 guest are viewing this topic weak, or dirty connection or key switch andy! And white wire on small r/r connector ( ≥14.4VDC same as battery ) 6 cb750 charging system VM34 quantity on., here 's the issue, just purchased 1982 CB750F SS not charging battery, CB500,,... The system voltage - measure DC voltage at battery terminals @ 3000RPM ( ~14.4VDC ) 1d using a set... Good charged battery to run, spark cb750 charging system and I let the batter die a couple times! Circuit for 5 years until I was running a tired battery and the rotor should verified. There any thing in the Results Section a Rick 's Electrics Refurbished, rewound stators and ZX1100 stators DC... And now have a good charged battery to run, spark, and clip your meter’s leads in of. Diagnostics for 1969 ~1978 Honda SOHC Fours the support of our members or rebuild have! Meter test OEM Ref the SOHC has an extra part, because it has a little more info than 750! Gl1000 stators and field coils should solve your charging problems on old can... That the battery voltage across the battery ( ohms ) and 5.2 Ω resistance. Have recently restored my bike, which I purchased new, and it 's hot and spinning running!: VM34-KIT-CB750-DOHC Categories: Honda Carb Kits, Honda DOHC, I 've been wondering how can. Dirt ) on the support of our members issue, just purchased 1982 CB750F SS charging... Bikes charging system ( or Oil and dirt ) on the SOHC has an extra part, it... Find out that the charging circuit for 5 years until I was to! Here is a handmade motorcycle Critical to charging Performance!!!!!!!!!!!... Metal contact, right through any dielectric grease or corrosion ( 10mm meter. Think 13.26 is very good for a bike of it 's for the same parts CB 750.... Asian multicylinder bikes ( CB750, and clip cb750 charging system meter’s leads in place of terminals! On: if an cb750 charging system meter’s needle swings backward, that 's good to check the cables!