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10-14-2011, 09:25 PM | #1 |
Not Yet Wild
Join Date: Oct 2011
Posts: 12
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G2 starter generator
Hi, I am working on getting a g2 that has been sitting for about 10 years. I have it all running now only it drains the battery while running. I have no accessories. I know that the voltage regulator can cause this but when I put the green wire from the starter generator to the negative battery terminal the voltage reading on the battery does not change. Is this indicative of a failed starter generator? Or is there someway to rebuild this or is my only option a new one? Any and all help would be greatly appreciated.
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10-14-2011, 10:38 PM | #2 |
Gone Wild
Join Date: Sep 2010
Location: Erie, Pennsylvania
Posts: 989
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Re: G2 starter generator
Have you checked the wiring to make sure the starter/gen red wire is getting +12 volts ?? Grounding the green wire will produce nothing if the red wire is not energized. You should also disconnect (red and grn wire) at the starter/gen (gen. field) and check the resistance with an ohmmeter. Should be around 5 ohms. Hope this helps. RAY
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10-15-2011, 06:47 AM | #3 |
Gone Wild
Join Date: Dec 2010
Posts: 635
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Re: G2 starter generator
good info for all yamahas
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10-15-2011, 07:06 AM | #4 |
Not Yet Wild
Join Date: Sep 2011
Location: cincinnati ohio
Posts: 49
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Re: G2 starter generator
I WOULD CHECK THE BRUSHES IN IT MINE DID THE SAME THING AND I PUT NEW BRUSHES IN IT TAKES ABOUT 15 MIN TO DO@ AROUND 40 BUCKS .GOOD LUCK
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10-15-2011, 07:41 AM | #5 |
Gone Wild
Join Date: Sep 2010
Location: Erie, Pennsylvania
Posts: 989
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Re: G2 starter generator
I think bad brushes would also result in a "no start" condition, which I assume you don't have. These starter/generators are very rebuildable (similar to the old automotive generators) and if all else fails a good automotive rebuilder would be a good next step. Brush replacement only, while ok, would not address any bearing or commutator issues. I think a little more troubleshooting is in order to find the problem. Keep us posted - RAY
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10-15-2011, 08:29 AM | #6 |
Not Yet Wild
Join Date: Oct 2011
Posts: 12
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Re: G2 starter generator
Thanks for the input. I did check the resistance between the red and green wires 5.7 ohms so i think that is within the tolerances. Also I do have battery voltage at the red wire when the engine starts and revs. I guess I will have to find somebody to do a rebuild on it. Thank you.
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10-15-2011, 10:32 AM | #7 |
Not Yet Wild
Join Date: Oct 2011
Posts: 12
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Re: G2 starter generator
I just found the problem. I didnt even think to check to make sure the power wires going into the starter generator were correct. but the negative and positive terminals were switched. So anyway with that I didnt even think about it because i thought if that were to happen the motor would spin in the other direction. guess not. Thank you again for the help.
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10-15-2011, 12:10 PM | #8 |
Gone Wild
Join Date: Sep 2010
Location: Erie, Pennsylvania
Posts: 989
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Re: G2 starter generator
Good deal - glad you got it sorted out. Now, go have some fun - it's Saturday !!! - RAY
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10-15-2011, 12:50 PM | #9 |
Gone Wild
Join Date: Dec 2010
Posts: 635
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Re: G2 starter generator
Checked Green and red wire for OHMS reading 9.7 is that gooe or bad
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10-15-2011, 04:19 PM | #10 |
Gone Wild
Join Date: Dec 2010
Posts: 635
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Re: G2 starter generator
anyone know how to bypass voltage regulator so generator will feed direct to battery club car can be done do not know how to do a yam gas
thanks |
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