Battery Charging. I have a voltmeter to monitor the system voltage when I'm riding. Rebuilt alternator/charging style rotors for street bikes. 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. Doug E. Vintage M/C restorer. I've got a 1981 CB750 F with electrical problems. 2021 GasGas MC … 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 … Series 1. REAR SUSPENSION.. Everyone I have ever talked to about Caltric has had zero issues with their stuff. That is also a really good price. I have a 1981 Honda CB 750 Four motorcycle. but what about undercharging. Rectifiers & Regulators. We must find the leak. Hey Ya'll First post on here as i am working on a friends 1981 CB750c for him. More Lifestyle. It is over charging and buring out all bulbs. Changed the rotor and then died again after one year. You do not have JavaScript enabled. 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. 80. February 17, 2017. 0 # mpn4648746954. 84. 1981 honda cb750 custom exclusive ELECTRICAL PROBLEMS I have a 1981 Honda cb750 custom exclusive.When it is cold it starts no problem, take it for a 30 min run and turn off engine it wil not turn over engine .there is plenty of juice in the battery but it appears as if there is nothing getting through to the starter motor.I let it cool down and it starts no problem.Thanks Brendan Check all grounds too. 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. It ran and then a loud BANG and it stopped. There is a table in the service manual to check the actual charging output of the system using these two readings. A melted plug is also a sign of a loose or dirty connector. It's my first bike, and I've always loved it, but I'm having a few issues. I just cannot understand people who think you can turn a key switch with a knife/screwdriver... Life is not about the number of breaths, you take, but the moments that take your breath away. I've also taken every connection I can find and re-cleaned all terminals.. the bike charges better cold … It had starting issues at the time. Yea, the gas tank lock is not very high tec. 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? If it's below 12.8 you definitely have a problem with the charging system. The bike wasn't charging and I discovered that the two cdi's melted and the regulator rectifier isn't working. 82. I had a wire in the main loom wear through the insulation and intermittently short out, interfering with the charging system. > I have a 1981 CB750 Custom and the charging system I know is going bad > could it also cause a high rpm miss? That is true. Honda CB750K … Continue with Google. I've read the previous posts about charging system issues, and they were extremely helpful. I've read the previous posts about charging system issues, and they were extremely helpful. Thread starter GroupBEnthusiast; Start date Jul 3, 2018; GroupBEnthusiast New Member. 8 Replies 4 Participants Last post: lennort Apr 8, 2009. Sad thing is, someone with a small hand could reach down and pull the plug off the ignition switch, and then take a jumper wire, and hot wire it in just a minute. high beam on. Enter any question, comment or answer about this motorcycle. i have a 81 honda cb 750. have a charging problem. Many charging problems on old motorcycles can be traced to dirty, corroded, or burnt connections or the key switch. im not sure of my test results. If your alternator output voltage is low, you'll get less voltage out of the ignition coils. 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. Join the discussion. 1980-07 CB900 … Headlight Bulb Replacement Procedure. I guess it wouldn't need to be though, a thief could just pull off the fuel tube if they wanted your fuel. Honda CB 750 Limited -- 1979. My first attempt to fix my charging system was to replace the rotor. A loose, weak, or dirty connection or key switch can cause improper or erratic charging system output. '80 cb750k Charging system troubles So, the new bike isn't charging. Everything ohms ok but no charge. Battery Charging Problems. I have a 1978 CB750K (Single Overhead Cam)with a charging problem. First bike, and they were extremely helpful continuity to all the features of CB750.com, please JavaScript... 1 5/8 '' x 1 '' unit videos that I know of, is to swap in a engine! A sign of a loose or dirty connection or key switch electrical issues with the system. Starter • # 1 1981 cb750 charging problems Aug 15, 2010 to heat be cause. '80 CB750K charging system was to replace and then a loud BANG and now I read. 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