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Unread 09-02-2010, 12:14 PM   #1
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Default Yamaha G1 starter generator test

Just throwing this out there for anybody like me that didn't know how to test a starter/generator. This is how I tested mine and there may be other ways to do it, but this ended up being pretty simple.



First off there are 4 posts on the starter each should be stamped A1, A2, F1 and F2 as in the diagram above. There should also be a green wire and a red wire coming out the side of the starter. I disconnected all cables and wires prior to testing.

Connect post F2 to the positive terminal on your carts battery and A1 to the negative terminal. Now if you connect A2 directly to F1 your starter should spin forward.

For reverse connect F2 to positive terminal of battery and A2 to the negative terminal. Now if you connect A1 directly to F1 the starter should run in reverse.

The last thing I did was check the Ohms running through the red and green wires. To do this use a voltmeter set to Ohms (looks like an upside down horseshoe symbol) touching the green wire with one probe and the red wire with the other you should read about 5 Ohms.

Hopefully this will save you some time if you were wondering if your starter was bad. Took me a while to figure out on my own without a repair manual.
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Unread 04-06-2011, 05:42 AM   #2
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Default Re: Yamaha G1 starter generator test

This is just what i was looking for. I will test mine today. thanks......
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Unread 06-28-2011, 09:11 AM   #3
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Default Re: Yamaha G1 starter generator test

I wonder if this test would work on a g8 starter
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Unread 10-06-2011, 10:01 PM   #4
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Default Re: Yamaha G1 starter generator test

how can you tell if its charging the battery? thanks this was really useful to get my cart running.
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Unread 10-07-2011, 08:40 AM   #5
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Default Re: Yamaha G1 starter generator test

Quote:
Originally Posted by weemans126 View Post
how can you tell if its charging the battery? thanks this was really useful to get my cart running.
put a volt meter on the battery. Rev up your cart to full speed. You should see voltage above 12.5 DC volts. Even as high as 17 volts.
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Unread 10-07-2011, 03:35 PM   #6
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Default Re: Yamaha G1 starter generator test

That is the proper test, except the voltage, if the regulator is ok, should be 14.5-15.5 Volts. 17 volts would indicate a bad VR. - RAY
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Unread 10-08-2011, 07:56 PM   #7
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Default Re: Yamaha G1 starter generator test

Sticky this thread. This is great information.
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Unread 10-10-2011, 05:33 PM   #8
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Default Re: Yamaha G1 starter generator test

wow this is great info the working man usually has to pay for this thanks
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Unread 10-10-2011, 07:40 PM   #9
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Default Re: Yamaha G1 starter generator test

Thanks guys!

Nice to give back to the forum that helped me rebuild my cart.
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Unread 10-23-2011, 08:29 PM   #10
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Default Re: Yamaha G1 starter generator test

Now I have a g9 and did this same test but mine ran opposite of what yours did hooked up the way you explained. Would this mean mine is bad?
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