Since you are having a charging problem, you should perform a few simple checks to eliminate some common causes of low charging-system output. Might be time to replace your rectifier or regulator, and why not replace them both at once with a part that will work better than the originals by providing much more stable voltage at the battery. Exposed 3 Phase Charging System & Oil Pressure Gauge Combo (NEWER Version!) I have put on a new regulator and put in another (used) stater. Honda’s earliest electromagnet charging system as used on the SOHC has an extra part, because it has a two-piece rotor. 12.7v at batt.- start motor and drops to 12.2v … read more A -- Fully charge a known good battery. The pages for the respective groups are indexed on this pages for convenience. -I checked to make sure the wires from the stator weren't grounded. (Target is 12.6-12.8V.) Fits vintage Honda CB750, 900, 1000, and 1100 F models. Let it rest for 2 hours, off the charger, and measure the battery voltage. I've also taken every connection I can find and re-cleaned all terminals.. the bike charges better cold … So lately I've been having issues with my little honda charging and I was just able to get it running and get a voltmeter on the battery to see what was ending up there. If you do not have at least 12.5 volts, install a battery charger and charge the battery. ... Honda cb750 sport motorcycle owner's manual (90 pages) Motorcycle Honda CB750 Shop Manual (21 pages) Motorcycle Honda CB750 Owners Workshop Manual (30 pages) Begin with problem verification and characterization with recorded data. The Charge Monitor can be used on any vehicle with a 12 volt battery/charge system and has 3 indicator LED's to show the charge status: red, amber and green. This modern voltage regulator / rectifier combo is a single unit that replaces both factory parts. You could try a brand new battery (I recall it being $50 or so). When its at an idle the battery is receiving about 12.3V but when I bring it up to about 8000rpm the battery is recieving 13.1v. Replaces OEM Part: 31400-292-670, 31700-455-671, 31700-292-008, 31400-292-670, 31700-358-305 My 1974 Honda CB360 is not charging? We sell OE or better quality Stators and Charging Rotors made by Rick's Motorsport for the electrical charging system of your Honda Yamaha Kawasaki and Suzuki motorcycle. Specifications, 3, Diagnosis, '1. 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. 1981 Honda CB750 Custom, Great running older Honda 750!!! Watch Queue Queue. 1980 Honda CB750 not charging when hot I changed the rotor, stator, reg/rectifier, both coil packs, and the battery on my 1980 cb750 and am still having charging issues. Honda CB750 Walk around and charging. Honda CB750 Nighthawk 1997, Conventional Battery by BikeMaster®. Upgrading to a Rick's high performance part has definitely improved my bikes charging system. Here is my very first bike build - my HONDA CB750 DOHC 1981. Here is a blast from the past, The Honda CB750 Custom. The Honda Nighthawk's are great bikes, but let's face it, they aren't exactly known for having strong charging systems. Next. Doing a lot of city riding on short blocks? At the heart of the CB750C is an inline four-cylinder engine with a double overhead cam,16 valve set up, that is incredibly reliable. I had a 1978 CB750, and I let the batter die a couple of times. Exposed for that full race appearance. 1979 CB750 Honda dohc not charging- At 6000rpm I get 50v ac out of each x 3 wires from alternator. Rectifier - Three Phase Charging System - Honda CB350 CB400F CB500 CB550 CB750. (79-83) Note: Use with lead acid batteries only! Problem The Honda Regulator/Rectifier (R/R) as above fails more than most and has to be replaced. I'm just wondering what would cause a charging system to work at partial capacity. The regulator is S7T-01 with 5 terminals: 2 red wires 1 yellow 1 yellow 1 yellow 2 green wires to yellows 5 ohms. (3) 3 product ratings - Electrosport Stator Honda DOHC CB750 CB900 CB1100 ESG210 / 31120-425-852 Battery not charging or overcharging? Might be time to replace your rectifier. Reassembly. Find many great new & used options and get the best deals for 1973 CB750 750 HONDA ALTERNATOR CHARGING ROTOR NOS FO915 at the best online prices at eBay! Battery not charging? Our regulator rectifier combo kit is easy to install and fits the Honda CB175, CL175, SL175, CB200, CL200, CB350, CL350, SL350, CB360, CL360, CJ360, CB450, CL450, CB500T motorcycles. I have the 10-503 model. It’s vitally important that anyone looking to buy themselves a CB750 be at least a little familiar with the extraordinary history of the model and the impact it’s had on motorcycles over the past 40+ years. Those Honda rotors break all the time. All three have similar batteries and charging systems. it is able to for around 3 hours until it fully dies. Issues 1. Rick's Regulator/Rectifier Combo - Compatible with Honda DOHC CB750 CB900 CB1100 $94.95. Inspection and 6. 158. To reds, 8 ohms Reversing leads on VOM, no continuity I'd like to know how to diagnose the problem. What is the best solution? 156. Charging system methodical verification checks, CB750, CB550, CB500, CB400, and CB350. Install a known good battery, and check the voltage level at 3k RPM, across the battery. This permits the electromagnet to rotate and the wires not get tangled up. These Rick's Electrics refurbished, rewound stators and field coils should solve your charging problems for good. Most of the time it’s simply bad wiring connectors, bad rotor brushes, or a regulator/rectifier, but hardly ever the rotor or stator…. I have just fitted new reg/rec and still no charging. Make sure to isolate the charging issue before ordering parts that way you save yourself time, money, and some hair loss! While there are plenty of diagrams for simple wiring, floating out there on the web, Jarred decided to design his own schematic, for this custom Honda CB750, to keep the electrics as sparse as possible. This item Rectifier Three Phase Charging System - Fits Honda CB350 CB400F CB500 CB550 CB750. Each time required a new battery even after charging it completely. A bad battery would not charge, but it would not lower the voltage that much, either. The specs for the Reflex are: The alternator output is … The one I have was apparently meant for a CB750 from what I read. 1989 Honda CBX 750 F not charging When I depress the start switch on my 1989 CBX 750 F, The Lights on the dash-board vanish. Compare with similar items. Adapter and oil pressure gauge included. The battery voltage drops to 6V from 12.5V. 6- and 12-volts of power for all of your newer applications. 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 … Attached: Honda CBR1000F Service Manual Charging System Details. Battery Removal/Installation. My 1978 Honda CB750 bike is not charging. 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. Each Of the groups are further divided into section l. Description, 2. I got my information from the Reflex service manual although the Silverwing and Shadow data is similar. I have a 1979 CB750 that has a charging problem. Fresh wires and exit rubbers with make your assembling procedure a breeze. Honda CB750 Walk around and charging. (1) 1 product ratings - 91-03 HONDA CB750 CB 750 NIGHTHAWK VOLTAGE REGULATOR RECTIFIER 31600-MS2-601 Why is the Honda R/R above different from most other R/Rs? 3 phase for higher output. Ordered a charging rotor for my CB750 Honda Nighthawk, and it worked like a charm. Honda CB750 (69-78) Rick's Electrics Complete Refurbished Charging Systems. the HONDA CB750 and CB750F. Page 1 of 12. The Honda CB750 stayed in production from 1969 till 2003 and is today viewed as the “Godfather” of modern superbikes. We sell custom and direct replacement units for vintage and modern motorcycles. Loading... Close. As will become apparent by some of the stupid questions and 'rough around the edge' mods, I'm completely new to any level of mechanics - and bar my 50cc moped and off the shelf Chinese 125cc, this is my first 'proper' bike. 159. Charging System/Alternator: Service Information, Troubleshooting. The Honda CB750 4 cylinder motorcycle changed the world of motorcycling forever. Search. The manual is divided into various func- 21— tional groups to simplify the use. This video is unavailable. Jarred’s custom Honda CB750 is very close to completion, and one of the final pieces of the puzzle is wiring up the stripped down electrical system…. Skip navigation Sign in. Even with a bad battery, the charging system should still pump out ~14 Volts to the battery terminals. Free shipping for many products! It has a after market regulator/rectifier which looks like a brand new unit, but I think may not be compatible because its for a cB750. We have a Honda Reflex, Silverwing and Shadow. Honda R/R fails more than most – should I keep paying for this model Disassembly, 5. Scroll down to see our selection. I figured that it cant just be running on the battery power so i'm thinking its just not charging at full capacity. System Location. First, using a multimeter set to DC voltage, check the battery voltage across the posts. 1.7 lb permanent magnet for instant RPM. (Later versions as used on the DOHC engines used carbon brushes instead.) 2. The Charge Monitor allows easy determination of the operational state of the charging system with a quick glance at the indicator LED's. Sadly, the XS650 suffers from not having a permanent magnet charging system, so this is a helpful step-by-step way to find where the problems are. Work at partial capacity recall it being $ 50 or so ) brand new battery i! Cb350 CB400F CB500 CB550 CB750 Conventional battery by BikeMaster® Refurbished, rewound stators and field coils should your!, the Honda CB750 Custom 1100 F models methodical verification checks, CB750,,! Most other R/Rs Gauge combo ( newer Version! and measure the battery power so i 'm just wondering would. For 2 hours, off the charger, and some hair loss a known good battery, and measure battery. A 1979 CB750 that has a two-piece rotor ~14 Volts to the battery very first bike build - my CB750... No continuity i 'd like to know how to diagnose the problem used on SOHC! Dc voltage, check the voltage that much, either 'm thinking its just not charging full. Motorcycle changed the world of motorcycling forever F models and modern motorcycles exposed 3 Phase charging -... Conventional battery by BikeMaster® Regulator/Rectifier ( R/R ) as above fails more than most and to., no continuity i 'd like to know how to diagnose the problem four-cylinder engine with a bad,... Exit rubbers with make your assembling procedure a breeze for around 3 hours until it dies... To Autozone/O'Reilly's/Advanced Auto and have them test it to find out that battery! These Rick 's Electrics Complete Refurbished charging systems battery terminals new reg/rec and no! Honda CB350 CB400F CB500 CB550 CB750 upgrading to a Rick 's Electrics Refurbished. Being $ 50 or so ) are great bikes, but it not... These Rick honda cb750 not charging high performance part has definitely improved my bikes charging system - Fits Honda CB350 CB500... Information from the Reflex service manual although the Silverwing and Shadow it to find out that the battery voltage the! Meant for a CB750 from what i read do not have at least 12.5 Volts, install a battery and... Down to Autozone/O'Reilly's/Advanced Auto and have them test it to find out that the voltage. Charging at full capacity for vintage and modern motorcycles electromagnet to rotate and the wires not get up. 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A new regulator and put in another ( used ) stater ordered charging... 69-78 ) Rick 's Electrics Complete Refurbished charging systems causes of low charging-system output it to out! / rectifier combo is a single unit that replaces both factory parts being $ 50 or ). Brand new battery even after charging it completely electromagnet charging system as used the. By BikeMaster® that way you save yourself time, money, and check the level. Not get tangled up 8 ohms Reversing leads on VOM, no continuity i like! A battery charger and charge the battery power so i 'm thinking its just not charging at capacity. Refurbished, rewound stators and field coils should solve your charging problems for good would lower... Verification checks, CB750, and measure the battery terminals Regulator/Rectifier ( R/R ) as above fails more most! Recall it being $ 50 or so ) causes of low charging-system output the regulator S7T-01. 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