Each Of the groups are further divided into section l. Description, 2. Install a known good battery, and check the voltage level at 3k RPM, across the battery. Scroll down to see our selection. Reassembly. The Honda CB750 4 cylinder motorcycle changed the world of motorcycling forever. 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. Watch Queue Queue. (Target is 12.6-12.8V.) Make sure to isolate the charging issue before ordering parts that way you save yourself time, money, and some hair loss! What is the best solution? 1981 Honda CB750 Custom, Great running older Honda 750!!! Battery not charging? My 1974 Honda CB360 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. The manual is divided into various func- 21— tional groups to simplify the use. 1.7 lb permanent magnet for instant RPM. Rick's Regulator/Rectifier Combo - Compatible with Honda DOHC CB750 CB900 CB1100 $94.95. Loading... Close. Search. Honda CB750 Walk around and charging. 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. 12.7v at batt.- start motor and drops to 12.2v … read more Issues 1. Honda’s earliest electromagnet charging system as used on the SOHC has an extra part, because it has a two-piece rotor. Battery Removal/Installation. 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. Those Honda rotors break all the time. 2. 3 phase for higher output. I've also taken every connection I can find and re-cleaned all terminals.. the bike charges better cold … 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! 6- and 12-volts of power for all of your newer applications. I have put on a new regulator and put in another (used) stater. Specifications, 3, Diagnosis, '1. 159. I'm just wondering what would cause a charging system to work at partial capacity. Rectifier - Three Phase Charging System - Honda CB350 CB400F CB500 CB550 CB750. To reds, 8 ohms Reversing leads on VOM, no continuity I'd like to know how to diagnose the problem. 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. Free shipping for many products! 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. 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. 156. Upgrading to a Rick's high performance part has definitely improved my bikes charging system. Why is the Honda R/R above different from most other R/Rs? Here is a blast from the past, The Honda CB750 Custom. The regulator is S7T-01 with 5 terminals: 2 red wires 1 yellow 1 yellow 1 yellow 2 green wires to yellows 5 ohms. I have just fitted new reg/rec and still no charging. 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 … I have a 1979 CB750 that has a charging problem. 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 had a 1978 CB750, and I let the batter die a couple of times. Charging system methodical verification checks, CB750, CB550, CB500, CB400, and CB350. -I checked to make sure the wires from the stator weren't grounded. Since you are having a charging problem, you should perform a few simple checks to eliminate some common causes of low charging-system output. This item Rectifier Three Phase Charging System - Fits Honda CB350 CB400F CB500 CB550 CB750. Begin with problem verification and characterization with recorded data. Each time required a new battery even after charging it completely. The Honda Nighthawk's are great bikes, but let's face it, they aren't exactly known for having strong charging systems. it is able to for around 3 hours until it fully dies. (79-83) Note: Use with lead acid batteries only! Attached: Honda CBR1000F Service Manual Charging System Details. I got my information from the Reflex service manual although the Silverwing and Shadow data is similar. We sell custom and direct replacement units for vintage and modern motorcycles. Honda CB750 Nighthawk 1997, Conventional Battery by BikeMaster®. Inspection and 6. 1979 CB750 Honda dohc not charging- At 6000rpm I get 50v ac out of each x 3 wires from alternator. Exposed for that full race appearance. Compare with similar items. If you do not have at least 12.5 volts, install a battery charger and charge the battery. Adapter and oil pressure gauge included. 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. Honda R/R fails more than most – should I keep paying for this model Most of the time it’s simply bad wiring connectors, bad rotor brushes, or a regulator/rectifier, but hardly ever the rotor or stator…. This permits the electromagnet to rotate and the wires not get tangled up. 158. Let it rest for 2 hours, off the charger, and measure the battery voltage. Disassembly, 5. Honda CB750 (69-78) Rick's Electrics Complete Refurbished Charging Systems. The pages for the respective groups are indexed on this pages for convenience. Fresh wires and exit rubbers with make your assembling procedure a breeze. Ordered a charging rotor for my CB750 Honda Nighthawk, and it worked like a charm. 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. The specs for the Reflex are: The alternator output is … 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. A bad battery would not charge, but it would not lower the voltage that much, either. Page 1 of 12. The Honda CB750 stayed in production from 1969 till 2003 and is today viewed as the “Godfather” of modern superbikes. 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. Here is my very first bike build - my HONDA CB750 DOHC 1981. Next. The one I have was apparently meant for a CB750 from what I read. First, using a multimeter set to DC voltage, check the battery voltage across the posts. System Location. 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. Battery not charging or overcharging? (Later versions as used on the DOHC engines used carbon brushes instead.) We have a Honda Reflex, Silverwing and Shadow. ... Honda cb750 sport motorcycle owner's manual (90 pages) Motorcycle Honda CB750 Shop Manual (21 pages) Motorcycle Honda CB750 Owners Workshop Manual (30 pages) Exposed 3 Phase Charging System & Oil Pressure Gauge Combo (NEWER Version!) A -- Fully charge a known good battery. Doing a lot of city riding on short blocks? The battery voltage drops to 6V from 12.5V. Honda CB750 Walk around and charging. 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…. Fits vintage Honda CB750, 900, 1000, and 1100 F models. This modern voltage regulator / rectifier combo is a single unit that replaces both factory parts. Problem The Honda Regulator/Rectifier (R/R) as above fails more than most and has to be replaced. 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. My 1978 Honda CB750 bike is not charging. Even with a bad battery, the charging system should still pump out ~14 Volts to the battery terminals. Charging System/Alternator: Service Information, Troubleshooting. Skip navigation Sign in. 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. These Rick's Electrics refurbished, rewound stators and field coils should solve your charging problems for good. The Charge Monitor allows easy determination of the operational state of the charging system with a quick glance at the indicator LED's. I figured that it cant just be running on the battery power so i'm thinking its just not charging at full capacity. (3) 3 product ratings - Electrosport Stator Honda DOHC CB750 CB900 CB1100 ESG210 / 31120-425-852 I have the 10-503 model. All three have similar batteries and charging systems. the HONDA CB750 and CB750F. Might be time to replace your rectifier. 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. You could try a brand new battery (I recall it being $50 or so). Replaces OEM Part: 31400-292-670, 31700-455-671, 31700-292-008, 31400-292-670, 31700-358-305 (1) 1 product ratings - 91-03 HONDA CB750 CB 750 NIGHTHAWK VOLTAGE REGULATOR RECTIFIER 31600-MS2-601 This video is unavailable. 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