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Old 01-18-2010, 10:06 PM   #1
groove_e1
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Default Mystery Piece on top of controller - Help ID

What the heck is this thing? It was between two contacts on top of my controller...and as I was looking at it, I accidentally broke it.

What is it, do I need it, and where can I get another one...or can I fix this one?

Thanks in advance.
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Old 01-18-2010, 10:22 PM   #2
Rodger's Rides
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Default Re: Mystery Piece on top of controller - Help ID

I ain't no expert, but I believe that is a diode. And yep it are broke. I don't run one even though the wiring diagram calls for one. But hang in there a really smart electrical member will steer you straight on it.
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Old 01-18-2010, 10:27 PM   #3
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Default Re: Mystery Piece on top of controller - Help ID

the diode is there to suppress voltage spikes as the coil engages and disengages. not absolutely necessary, but it will stop the popping in your radio and the occasional flicker in your headlites when you shift. by the way groove, who the he!! is that in your avatar?
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Old 01-18-2010, 10:42 PM   #4
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Default Re: Mystery Piece on top of controller - Help ID

I've got to pick one up tommorow too. Calls for a 1N4004.
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Old 01-18-2010, 10:51 PM   #5
groove_e1
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Default Re: Mystery Piece on top of controller - Help ID

So are the two things pictured below the same thing...serve the same purpose? Assuming they have to be 3amp?
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Old 01-18-2010, 10:56 PM   #6
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Default Re: Mystery Piece on top of controller - Help ID

yup!
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Old 01-18-2010, 11:13 PM   #7
groove_e1
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Default Re: Mystery Piece on top of controller - Help ID

Quote:
Originally Posted by pansser View Post
the diode is there to suppress voltage spikes as the coil engages and disengages. not absolutely necessary, but it will stop the popping in your radio and the occasional flicker in your headlites when you shift. by the way groove, who the he!! is that in your avatar?


It was like the one ARS I ever saw...and the guy was just crazy looking...http://www.pbs.org/wgbh/roadshow/archive/199901A21.html
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Old 01-18-2010, 11:41 PM   #8
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Default Re: Mystery Piece on top of controller - Help ID

Looks more like a capacitor to me...
Was it hooked up to the big posts on the solenoid? (pre-charge resistor)
Or the little posts? (diode)
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Old 01-19-2010, 09:36 AM   #9
groove_e1
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Default Re: Mystery Piece on top of controller - Help ID

It was actually on top of the controller...connecting two of those posts...
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Old 01-19-2010, 09:39 AM   #10
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Default Re: Mystery Piece on top of controller - Help ID

Its a varistor for a EZ-GO part#E25949-G01
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