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…. Start the engine, and touch the red and black test leads to the battery. Copyright 2020 Leaf Group Ltd. / Leaf Group Media. I put the battery on a trickle charger prior to taking it out. Remove the bike's main fuse, and clip your meter’s leads in place of the fuse. In this video we replace the alternator rotor and brushes, and also replace the regulator rectifier to make sure our charging system is the best it can be! RECTIFIER PURPOSE and FUNCTION. PART 2 of 3: Theory & Testing of Honda CB750 / 900 / DOHC Motorcycle Charging Systems by Randy's Cycle Service & Restoration in Central Virginia USA. If forward, reverse the connections. The voltage displayed on the meter should be above 12.5 volts. On a digital … He has written Web content for eHow, and designed the DIY-Auto-Repair.com website. I had a 1978 CB750, and I let the batter die a couple of times. It may be old school, but it works. He began his writing career developing and teaching automotive technical training programs. I'm also building a new wiring harness. 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. Don't overlook repeat rotor failures and it's common. Dirt and Off Road Stators . Testing the charging system of the Honda presents some difficulties, but this project is still within the abilities of a well-equipped weekend mechanic. The Charge Monitor allows easy determination of the operational state of the charging system with a quick glance at the indicator LED's. CB750 charging test.pdf (169.27 kB - downloaded 84 times.) The battery in the Honda is located on the passenger's side rear of the engine compartment or on the driver's side front of the engine compartment. The alternator in your Honda provides the electrical power to your vehicle after the engine starts. Watch owner Rick Shaw explain how to test your stator in our informational video. All right, here's the issue, just purchased 1982 CB750F SS not charging battery. This winter I had stored the battery inside and last year until I put it up seemed like there was no trouble with charging system, the battery always held a charge, the bike always started. You could try a brand new battery (I recall it being $50 or so). Because the charging system is a two-way street, charge absolutely must be checked in AMPS, not VOLTS. Set the controls on your digital volt/ohm meter to the “Volt D/C” position. 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. In this diagnostic tutorial on testing a motorcycle's charging system. When the bike is off, before starting, the voltage should read over 12; when riding at 3k RPM+, the voltage should read 13V+, which indicates the charging system is working. Set the controls on your digital volt/ohm meter to the “Volt D/C” position. Anyway, we have adapted our 3 phase charging system to the Honda 450's. Locate the battery and pull back the protective rubber terminal covers. We have had numerous people that started messing with the charging system for days only to find out that their battery was junk, so check it, even if it is "supposed to be good". The GND brush is grounded with the brush mounting screw. When you turn the ignition key to the "Start" position, electrical power is supplied to the starter, and the engine turns over. Step 1. hey guys, I've been wondering how I can upgrade the charging system on my 75 cb550. CB750.com is dedicated to the Honda CB750 SOHC and DOHC motorcycles and to their owners who love to ride, restore, and customize them. If the fuse blows immediately, check the ignition switch for melted contacts. No more drained battery! The charging system does not have enough output to charge a low, weak or discharged battery. Testing the charging system of the Honda presents some difficulties, but this project is still within the abilities of a well-equipped weekend mechanic. Samsungs Galaxy A71 ist ein spannendes Mittelklasse-Handy 2020 – und schon jetzt preislich günstiger. Touch the red test lead of the meter to the positive battery terminal and the black test lead of the meter to the negative battery terminal. We have expanded our line of aftermarket dirt and off road stators including for Honda stators, Yamaha stators, Suzuki stators and stators for KTM applications. Specializing in website content and design for the automobile enthusiast, he also has many years of experience in the auto repair industry. Now I do have some background info on the bike for what its worth. 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