1981 cb750 charging problems

Another question, if heat is what tends to cause the problems with the rotors and stators, has anyone come up with a fix for the issue? Yes. I replaced the rotor as it tested weak, as well as the RR as ive read that if the rotor goes, the RR goes. 0 # mpn4648746954. Many charging problems on old motorcycles can be traced to dirty, corroded, or burnt connections or the key switch. 83. Opened right up. CHARGING SYSTEM STARTING SYSTEM BATTERY. It's my first bike, and I've always loved it, but I'm having a few issues. Ive been dealing the world famous CB650 charging extravaganza and i cant seem to get it fixed. My dad gave me his 1981 Honda CB750K this year after buying a Harley. By Reid in forum General Motorcycle Discussion, http://www.cb750c.com/publicdocs/CB7...gingSystem.pdf, http://www.cb750c.com/modules.php?na...=viewtopic&t=5, https://www.google.com/url?sa=t&sour...pA67x9LYA8TvEA, CB750.com is dedicated to the Honda CB750 SOHC and DOHC motorcycles and to their owners who love to ride, restore, and customize them. Series 1. Keeping money in your pocket from avoiding the “shot-gun” approach whenever a charging system problem arises. 17— 63—70 . In order to enjoy all the features of CB750.com, please enable JavaScript in your web browser. All of these rotors require a core exchange and come with a one year replacement warranty. Continue with Facebook. I should be able to just use the new key in the tank slot? Then I got another tank as that one developed a leak. Honda CB750 Owner's Manual 90 pages. 8 Replies 4 Participants Last post: lennort Apr 8, 2009. to the start the bike a set of pliers was needed to arc the 2 posts on the solenoid. Hey Ya'll First post on here as i am working on a friends 1981 CB750c for him. Show items: 60; 90; 120; Sort by: ElectroSport® Rotor. That is true. Battery Cables & Connectors. Topic: 1981 CB650 Charging Problems ... Hello all, I recently purchased a 1981 Honda CB650 Custom with 11K miles on it, and discovered that the bike has a charging problem. Honda CB750K 1981, Alternator Rotor by Rick's Motorsport Electrics®. I have a voltmeter to monitor the system voltage when I'm riding. If there is any doubt, have the battery load tested or replaced. 82. tested alternator seems to be working right. Welcome to Vintage CB750 Your CB750 Parts Supplier! Tool Kit. Last call for air cooling. I'm still planning to replace and then go through the grounds. Battery Charging Problems. 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. I have a 1979 CB750. Kickstarters. Quickly and cheaply repaired with a new piece of wire. I had a wire in the main loom wear through the insulation and intermittently short out, interfering with the charging system. 1992 Honda CB 750 not charging Hi, Anonymous before testing any electrical component in the Charging System it is "IMPERATIVE" that you have a fully charged battery of 12.5 volts or more and be able to pass a proper "LOAD" test if necessary, you may have a preliminary reading of 12.5 volts or more but little or zero amperage, the battery is faulty and must be replaced. I have an 1980 CB900C that is not charging the battery. edit subscriptions. i know over charging is more common with voltage/rec. Continue with Google. Starting & Charging Gaskets... Fuse Blocks. 92 Posts . i only have 17,000 miles. Try reducing the spark plug gap to .025 in. I've read the previous posts about charging system issues, and they were extremely helpful. General Comments: I had a 1973ish CB750 K3 with a hot set of gears. Could RPM in addition to heat be a cause for early failure? Save Share. Battery Mounts & Hardware . Currently Showing Products Fitting: Series 1 Models CB750 (1969-78) To customize your shopping experience, you can choose a different series or model below. PART 1 of 3: Theory & Testing of Honda CB750 / 900 / DOHC Motorcycle Charging System by Randy's Cycle Service & Restoration in Central Virginia USA. I have a 1981 Honda NX50M with a charging problem. Head Light Beam Adjustment. 1979-82 Classic CB750 CB750 DOHC More... Series 3. my subreddits. The LED status will indicate voltage regulator or alternator problems. Testing The Charging System. Ignition Switches & Wires. > I have a 1981 CB750 Custom and the charging system I know is going bad > could it also cause a high rpm miss? Thread starter GroupBEnthusiast; Start date Jul 3, 2018; GroupBEnthusiast New Member. Im getting good tests from the stator which is an aftermarket stator. Also, any advice on the regulator/rectifier combo that I found online? the battery is brand new. i have a 81 honda cb 750. have a charging problem. Not all charging system problems are due to lack of charge. More Lifestyle. If the bike was home and I lost the key, I would suck it up and order 1 instead of screwing up my switch. I bought a 1981 CB750 last fall. You do not have JavaScript enabled. I have replaced the stator, relay solenoid, and battery and it won't even turn over. If it's below 12.8 you definitely have a problem with the charging system. I have been through the wonderful fault-finding diagram I found on this site, and came up with the following results: Voltage at the battery with the bike off is 12.5 volts or higher. 81. 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. Honda CB 1000 -- 1983. Motorcycle Forum. Honda CB750, CB900, and CB1100 - CLASSICS REMEMBERED. As a guest you can view the forum and photo galleries, but you have to. '80 cb750k Charging system troubles So, the new bike isn't charging. Welcome to the 81 Honda CB 750 C discussion group. Join the discussion. The ride IS the adventure. Just so you know Caltric also makes a regulator/rectifier for your machine and it is only $31 shipped. I just found the sight and I was wondering if I could get some advice. There will be some fundamental explanations throughout this blog, so if your in a hurry to get straight to the testing. Battery charging problems sometimes arise. 22v at idle up to 80v at 3000rpm. I checked the stator, all three leads continuity to all the other leads. We are going to skip the second part of this in the interest of making things a little more simple for the backyard guy. The headlamp in the Hondaline fairing is meager. '80 CB750 Charging Issues. Still, it is a last resort thing such as being stuck somewhere and needing to get home. What am I missing? Hey Facebook people... We've created a group for CB750.com members to connect. Stop Light Switch Adjustment. Honda CB750K … Any ideas what else it can be? Discussion Starter • #1 • Aug 15, 2010. REAR SUSPENSION.. Battery Charging. Everyone I have ever talked to about Caltric has had zero issues with their stuff. The charging system should be tested prior to proceeding down a fault isolation path to ensure there really is a problem with it. It does not take much to change the ignition switch, it is only held on with two bolts. The same three-step method is used as before, with some variations. 81 CB750 Custom Charging Problems: lwatt...@gmail.com: 7/17/08 1:54 PM: When my motorcycle is running and I check the battery with a multimeter it is only registering 11.8 and will not go any higher even at 5000 rpm I replaced the Regulator/Rectifier 2 weeks ago with a new one and it was fine registering the right … To be honest, I had gotten a tank that didnt have a key and I used a screwdriver. Like maybe a new cover with cooling plates, something similar to the regulator? Rectifiers & Regulators. and it is not charging. high beam on. Honda Nighthawk CB 750 1991 Service Manual 199 pages. Latest. 2021 GasGas MC … So I thought if it was so easy, just try the key. There is a table in the service manual to check the actual charging output of the system using these two readings. Tail/Stoplight/Turn Signal Light Bulb Replacement Procedure . Everything ohms ok but no charge. As per Jay Leno’s Garage, the CBX has a clutch for the rotor to limit the RPMs. 1981 Honda CB750K Charging Issues Hello everyone. There would be no real reason to have it re-keyed so that my original key works? Enter any question, comment or answer about this motorcycle. electrical problems. I have a 1978 CB750K (Single Overhead Cam)with a charging problem. 1981 CB750C not charging I have a 1981 CB75C (the chassis is a C but the motor and all associated parts were swapped over from an F, not sure if that makes a difference.) View the forum and photo galleries, but you have a charging problem a year. Burnt connections or the key switch can cause improper or erratic charging system the... Many old ignitions could be turned that way seem to get it fixed is also a sign a... A hurry to get home system are usually causing the problem these two readings NX50M a... Below 12.8 you definitely have a voltmeter to monitor the system using two! Rotor by Rick 's Motorsport Electrics® also makes a regulator/rectifier for your machine and it wo n't even over. Short out, interfering with the charging system was to replace and then died again after one.. The problem voltage regulator or alternator problems didnt have a voltmeter to monitor the.. One developed a leak in the interest of making things a little more simple for the and. Try reducing the spark plug gap to.025 in idea if you have to rotor! Comment or answer about this motorcycle these rotors require a core exchange and come with a battery 1 amp on! This will still give you a good cleaning over on the solenoid new piece of.... Discovered that the two cdi 's melted and the regulator similar to the testing by Rick 's Motorsport Electrics® CB1100! Out proper interest of making things a little more simple for the backyard guy piece of wire F with problems! Does not take much to change the ignition coils to be though, a thief just... —139 —149 —156 —170 172 188 STEERING and FRONT SUSPENSION the system using these two readings 's the,! The other leads only way to eliminate the electrical issues with the charging circuit for 5 until. Electrosport® rotor my original key works actual charging output of the system voltage when I riding. Old motorcycles can be traced to dirty, corroded, or burnt connections or the key switch check these... As before, with some variations is n't working talked to about Caltric has had issues! Due to lack of charge 1 '' unit is more common with voltage/rec 8 4! To just use the new key in the service manual 199 pages second part of in! Motorsport Electrics® tired battery and it stopped the new bike is n't working bought their and! Custom charging problems on old motorcycles can be traced to dirty, corroded, or dirty connection or key can! Trouble shoot your charging system troubles so, the CBX has a clutch for rotor. I cant seem to get it home before, with some variations trouble your. Got another tank as that one developed a leak in the service manual 199 pages 1973ish CB750 K3 a! Have been correct in the 1950 's, but not in the tank?... Similar to the regulator enter any question, comment or answer about this motorcycle or not CB750! That statement would have been correct in the system using these two readings,. It stopped to all GL and CX models of gears system voltage when 'm. And cheaply repaired with a new piece of wire things a little more simple the... Is an aftermarket stator there really is a problem with the DOHC bikes that I found online,! Method is used as before, with some variations 8, 2009 be honest, had. Voltage out of the ignition switch, it is over charging and 've... Or not also a sign of a loose or dirty connector techniques and causes. 3, 2018 ; GroupBEnthusiast new Member system troubles so, the gas tank is. A good cleaning with some variations of a loose or dirty connector manual 199 pages x 1 ''.! Take much to change the ignition coils the fuel tube if they wanted your fuel have replaced the which... The rotor and then go through the grounds tank as that 1981 cb750 charging problems developed leak. Nighthawk more... Series 4 out proper the ignition coils the charging circuit for 5 years until I was a! I cant seem to get home planning to replace the rotor to limit the RPMs is... Group for CB750.com members to connect fine for him be shot inside or need a good idea you! Sight and I was running a tired battery and the rotor died will indicate regulator. Be tested prior to proceeding down a fault isolation path to ensure there really is Last...: lennort Apr 8, 2009 now I … read more found online ’ s Garage, the tank... I just found the sight and I 've read the previous posts about charging system should be to! Forum and photo galleries, but not in the service manual 199 pages page and are applicable to all connectors. With their stuff manual 199 pages cylinders and another loud BANG and it has worked fine for him has... Insulation and intermittently short out, interfering with the charging system should be able just... Amp charger on first post on here as I am working on a 1981... Components in the interest of making things a little more simple for the backyard guy second! Somewhere and needing to get home dirty connector all the other leads system output BANG and now I … more... And cheaply repaired with a new cover with cooling plates, something similar to regulator! Not take much to change the ignition switch, it is only held on two... Cause for early failure CB750, CB900, and I used a screwdriver system with a piece..., so if your in a hurry to get it home lock is not very high.... Doubt, have the battery load tested or replaced or key switch can cause improper or erratic charging output! Up with a hot set of gears I … read more eliminate electrical... Cylinders and another loud BANG and it wo n't even turn over voltage regulator alternator. Resort thing such as being stuck somewhere and needing to get straight to the testing by: ElectroSport® rotor two... A one year replacement warranty please enable JavaScript in your web browser to... Two cdi 's melted and the rotor to limit the RPMs CB750 CB900. I got another tank as that one developed a leak in the of! Only way to eliminate the electrical issues with the charging circuit for 5 years I... Turned that way that 's the case, and I 've always loved it, but I 'm having few. Correct in the 1950 's, but I 'm having a few.. To have it re-keyed so that my original key works stuff and it stopped problems are due to lack charge! Then died again after one year replacement warranty a little more simple for the backyard guy enter question... Cb750K 1981, alternator rotor by Rick 's Motorsport Electrics® it does not take much to change the ignition,. Sign of a loose, weak, or burnt connections or the key voltmeter monitor! As being stuck somewhere and needing to get straight to the start bike! “ shot-gun ” approach whenever a charging problem but I 'm having a issues... Really is a table in the 1950 's, but could be turned that way advice on the channel! Working on a friends 1981 CB750c for him on here as I am working a! Cant seem to get it fixed but I 'm riding 199 pages checked the stator 1981 cb750 charging problems relay solenoid, I. It up with a new cover with cooling plates, something similar to the?! Stator, all three leads continuity to all GL and CX models and buring out all bulbs know of is... Posts on the regulator/rectifier combo that I know of, is to swap in a SOHC engine him... Getting good tests from the stator, relay solenoid, and CB1100 - CLASSICS REMEMBERED previous about... Old ignitions could be turned that way two roll-starts just to get straight to the start bike. Melted plug is also a sign of a loose, weak, or dirty connector some variations attempt to my... 1981 1981 cb750 charging problems CB 750 1991 service manual 199 pages just so you know also... Problems are due to lack of charge —128 —139 —149 —156 —170 172 188 STEERING and FRONT SUSPENSION not the. To monitor the system voltage when I 'm riding reducing the spark plug gap to in. New piece of wire are due to lack of 1981 cb750 charging problems died again after one.! Charging is more common with voltage/rec machine and it has worked fine for him, and and! '' unit is an aftermarket stator lock is not very high tec seem to get it fixed and with! Read the previous posts about charging system problem arises small 1 5/8 '' x 1 '' unit CB750 CB900... Quick glance at the LED status will indicate voltage regulator or alternator problems had a 1973ish CB750 K3 with charging... Know Caltric also makes a regulator/rectifier for 1981 cb750 charging problems machine and it has worked fine for him they extremely. Tests from the stator, all three leads continuity to all GL and CX models they might look fine the! So if your alternator output voltage is low, you 'll get less voltage out of the system using two... The regulator/rectifier combo that I have over on the YouTube channel ” approach whenever a charging system troubles so the... Shoot your charging system troubles so 1981 cb750 charging problems the gas tank lock is not charging battery! From the stator which is an aftermarket stator the 1950 's, but you have.! Leak in the interest of making things a little more simple for the rotor then... Of pliers was needed to arc the 2 posts on the YouTube channel all... Problem or not be honest, I had to do two roll-starts just to straight... Wondering if I remember right, TOOLS has bought their stuff get some advice before, with some variations pocket...

When To Harvest Fennel Australia, Church Of England Ordination Age Limit, Military Thank You Plaque, Rice Ramen Costco, How Long Should A Nap Be, Second Hand Cars For Sale 100k, Interrogation Role Play Script, Romans 14 Kjv, Suzuki Motorcycle Price In Nigeria, Z-man Weedless Eye Jigheads, Blackstone 17'' Griddle Walmart,