Question about 1982 Honda VF 750 S

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Is there a rectifier in these bikes - 1982 Honda VF 750 S

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Yes, there is a combination regulator/rectifier located near the battery.Look at a parts diagram of your bike at babbitsonline.com or bikebandit and it will show your about where it is and what it looks like.

Posted on Apr 25, 2010

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How do I test the rectifier on the jonway 150cc.


It's not the rectifier which is the problem as this is part of the charging system. If the rectifier is faulty, the bike will still drive with a good battery till it runs out of power.
Your problem sounds more like a bad starter motor, try push starting the bike to see if it drives.

Dec 15, 2014 | Jonway Motorcycles

1 Answer

Passion plus charging problem


Your bike is designed to have a 35/35 watt headlight bulb. Regardless of fitting a slightly higher capacity battery and rectifier, you have probably blown the rectifier, battery and possibly the alternator. HID is too powerful for your poor little bikes electrical system to deal with. I would try to get a halogen 45/40 watt bulb and try that if your electrical system is still OK.

Nov 02, 2014 | Motorcycles

2 Answers

Battery goes flat whilst bike running


A couple possible problems: 1. Battery is old and sulfonated preventing the charge to hold. 2. Stator has gone south and needs replacing, Both can be checked by a competent mechanic.

Most stators are 3 phase, meaning each positive wire produces up to 14.4 volts or close. Using a multimeter each wire can be checked. I don't know the model of your bike but usually leads from the rectifier are close to the battery but don't have to be. The rectifier converts AC from the stator to DC to charge the battery. Check each leg before and after the rectifier with a multimeter. If any leg doesn't produce more than 13v the the rectifier needs replacing.

Sep 07, 2014 | Motorcycles

1 Answer

Bike is breaking down at 7000 rpm


check all terminals esp of rectifier, put a volt meter across battery does voltage go down below 12v when you rev the bike. sounds like a rectifier problem if works sometimes and other times not, had similar on a gpz600r. cleaned all terminals and its fine now. this cure is only for if the bike is ok at times. if its like it all the time then its could be other faults. let me know..

Feb 15, 2013 | Motorcycles

1 Answer

I have a peugeot xp6 runnin fine but doesnt charge the battery whats wrong


If not charging then it can only be either the stator windings or the regulator/rectifier. The silver "box" with fins on it is your rectifier. Good chance that's the problem...Try another rectifier and put a multimeter on battery terminals. Check voltage when not running then check with bike running. Fully charged battery should show approx 12.4 volts. With bike running it should show approx 13 plus volts which will tell you that it's charging. Usually it will be the rectifier rather than the stator windings that stops it charging.

Dec 14, 2012 | 2008 Peugeot XP6 Enduro 50

2 Answers

Having replaced battery with new, something is still dragging it down. Less than 20% charge after 2 weeks. Mate says rectifier? I have purchsed one but have no idea where its is sited on the bike. Please...


my fury 125 kawasaki is having a problem when starting? i dont know if its rectifier? ialready change my battery with a knew one .then it drain it again .can you help me?

May 25, 2011 | Suzuki TL 1000 R Motorcycles

1 Answer

Hoo.cwiring diagram for 93 honda cbr900rr for the rectifier


THIS DEPENDS ON WHETHER YOUR RECTIFIER HAS 5/ OR 7 WIRES, SIMPLE ENOUGH THOUGH , YOU WILL SEE THREE YELLOW WIRES THESE WILL COME FROM THE AC SIDE OF THE GENERATOR ON THE ENGINE TO THE RECTIFIER, IT IS HERE THE AC, ALTERNATING CURRENT IS CHANGED TO DIRECT CURRENT DC IS USED FOR STARTING THE BIKE, AND PROVIDING POWER FOR LIGHTS ETC, YOU WILL THEN FIND 1 OR 2 GREENS, GREEN IS THE BIKES EARTH ON OLDER HONDAS, SO PUT THESE WIRES TO A GOOD EARTHING POINT ON THE BIKE OR WIRE INTO THE LOOM , YOU WILL TEN FIND 1 OR 2 REDS, AS RED IS THE DC OUTPUT FROM THE RECTIFIER YOU WILL NEED TO CONNECT THIS TO THE POSOTIVE+SIDE OF THE BATTERY

Sep 09, 2010 | Honda CBR 900 RR Fireblade Motorcycles

1 Answer

The battery will not stay charged and the regulator rectifier get hot after running the bike for a short period of time. bike runs but not well when you disconnect the negative battery cable


sounds like the regulator/rectifier has failed. you need to check that you are getting 13.5 14.8 volts at the battery when bike is running, higher means failed unit and under means same. you need a diode tester to measure reg/rectifier and will also need to check stator output with multi meter on AC, should get 60-100 volts when bike revved with stator wire unplugged from regulator.
best solution is to take to your local shop and get them to perform these and other tests to confirm as electrical parts are generally not returnable once purchased as very easy to damage if put into a bike with other charging system faults

Aug 31, 2010 | kawasaki ZX-6R Motorcycles

2 Answers

How to test rectifier.


there are several ways to test a rectifer the quckest way to check if it is working properly is with a voltmeter first check ground resistance one lead to good known ground (battery neg.) the other to rectifer should be 1 ohm or less.Then hook meter to battery and start the bike and check and watch battery voltage should start to increase after a minute or so check at 2000 rpm again increase if it does not check stator if stator passes replace rectifier

Mar 01, 2010 | 2002 Yamaha V Star 1100 Classic

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