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How to test your Electricity Generator’s AVR, Brushes and Alternator on a Brushed Alternator

Written By: Generator Man - Jun• 22•12

When your electricity Generator stops producing power, you need to know how to test the Alternator motor to find what has failed. This video will show you how to do this.


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24 Comments

  1. generatorguru01 says:

    If you have a capacitor then you need to have a look at my video for Brushless Generator Testing.

    You cannot fit an AVR unit to a brushless alternator without replacing the whole alternator and wiring system. It would be cheaper to buy an new generator, and a lot less hassle!

    Hope this helps!

  2. ssharpeyes says:

    give info about capacitor generator. because their is not AVR built in in my generator…

    power 1 k .. how i install AVR in my generator after uninstall the capacitor

  3. skhurramshah says:

    Thank you very much for you concern. Appreciated….

  4. generatorguru01 says:

    BTW we sell carb rebuild kits, and new carbs if you need them ;)

  5. generatorguru01 says:

    It could be that the floater in the carb is stuck. I suggest a good clean, and inspection of the whole carb. If there is old or dirty fuel it will allow to much fuel through to the engine.

    The only other thing it will be is a governor problem, but this is very rare.

  6. generatorguru01 says:

    That is the rectifier. You can find the replacement on our website.
    Sure drop us an email on the site, there is a link there for sending an email.

  7. generatorguru01 says:

    Please drop us an email via our online form on the website.

  8. barryo20011 says:

    I think it only has 2 wires, Not really sure. I took a picture of the back with the cover off. I would like to send it to your email if you want to see it.

  9. skhurramshah says:

    Hi! I really liked the video its full of information, but I need some more information from you if possible, that my generator speed is too fast and it creates a lot of noise when I put on the load on it, someone told me to fix the speed through the screw near the carbonator.
    So would you please tell me anything which really help me out.

  10. barryo20011 says:

    I’m not really sure! there are lots of wires. I took the cover off and it don’t look like any of the ones that i seen on your channel. It has a little 1-inch square thing that 4 wires plug into. I took a picture of the back and all the wires i would like to send it to you to look at and tell me what you think. The square box thing is at the upper left side of the cover screw hole.
    Thanks.

  11. generatorguru01 says:

    How many wires come from the windings?

  12. barryo20011 says:

    Hello!
    Is it possible to take a 120VAC generator with 2-receptacles and convert it to 240VAC generator to run my welder? I live off grid and have 2- 120VAC generators and willing to experiment with one.

  13. jnowak1991 says:

    Yea i figured by Hz may bee off. I ran out of time yesterday so over the week i am going to hook up my engine tester to it to measure its rpm and my oscilloscope to measure Hz and adjust the speed back to manufacturers specs.

  14. generatorguru01 says:

    Thanks *Blush.*

    He is 1/2 German Shepard, 1/4 Lab, and 1/4 Rotti. He is 8 years old now, and accepts that I talk to a tripod… Don’t you love dogs, they accept you for who you are without question, even when you look nuts and talk to yourself.

    Thanks for your feedback

  15. generatorguru01 says:

    There is just one problem…. Your Hz will be wrong and can damage any equipment you attach to it.

    Also the AVR will blow in time.

    I suggest you only run things that are expendable.

  16. generatorguru01 says:

    An inverter AVR is very large (at least 200 x 250 mm) and most of the generator models will have an “i” in it. e.g. kge1000ti

    Capacitors only have 2 or 4 wire connections.

    Therefore everything else has an AVR.

    Hope this helps 🙂

  17. barryo20011 says:

    Great videos.
    How can I tell if i have a standard or inverter of a capacitor generator

  18. jnowak1991 says:

    I’d like to make a little suggestion for those who get more voltage from the rotor then what is acceptable.
    My Generator was putting out around 30 volts on the rotor and around 2.4 on the windings. So i was thinking i am no going to bother changing the rotor which is around 3 times the price of the avr. I decided to see how low i can get it to idle by just using my hand to lower the throttle. well turns out that after bringing it down to a low idle I am now it works like new!!!

  19. biguglygadgie says:

    great vid . i love it when you learn some thing on you tube#

  20. loytube1 says:

    i’ll say it’s a great video! stiles, you were born to teach. this is easy to understand, yet technically in depth. kudos! p.s.- i like your assistant, what breed is he?

  21. MorrisRayMccain says:

    A great video, easy to follow. Please keep them coming

  22. geokrz says:

    great vids on the generators!!!!

    please keep them coming….

  23. sixtyfiveford says:

    Great Video

  24. 914peru says:

    thanks for you help realy nice of you

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