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Should the solenoid have increasing voltage across the main terminals, 9.0vdc to 30vdc. Master switch in tow, key switch off.

2007 Yamaha YDRE Golf car will only move 4 forward or reverse.

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Vernon Taylor

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My answer is I don't know regarding golf carts but generally a designer would arrange for a solenoid to be actuated by as constant a voltage as possible, especially if it is to be engaged for long periods. That is the only method to ensure consistent operation without danger of overheating. This is assuming the available voltage energises the soleniod.
I would expect the voltage across the main terminals would also be expected to be fairly constant so a predictable consistent performance can be provided over a long life.

You really need to consult a repair manual/wiring diagram. As a complete uninitiated golf cart layman I would expect the main solenoid switch to be switching the battery voltage which would then supply the speed and direction control board. I could be worng though!

Posted on May 02, 2016

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Where is the starter relay located on a 1996 saturn sl1


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Hello Lynn,

Sounds like you have a problem on the key controlled side, so:

1. Power from the battery to the key switch? 6V or 12V I would guess.
2. With the key in the "Start" position, have you got voltage to the thin wire/small terminal on the solenoid?
3. Do you have a good ground from the starter motor to the chassis?
If all the above checks out then the control circuit for the starter should all be working A-OK & when you turn the key to the "Start" position you should be getting a good, strong "Click" from the solenoid.

So - on the starter circuit:

1. The HD cable feeding the solenoid should always have battery voltage on it?
2. When you operate the key you should hear the solenoid "Click" and the voltage from the HD feed cable should now be connected to the other HD terminal on the solenoid (these are the two you are shorting out with your screw driver to get the motor to turn the engine over).
3. If the solenoid is "Clicking" when you operate the key & the voltage from the main supply cable is being passed to the second HD terminal, but the motor is not operating, then you need to check your ground cable.

Hopefully by now you will have found & fixed the problem :)

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Greg

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sounds like you are hooking up the starter wrong. the positive goes to the starter main terminal from the battery. the ignition wire goes to the s on the solenoid, which activates 12 volts when the ignition switch is turned on which causes a magnetic field
inside the solenoid and joins the connectors
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1 Answer

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That wire may be coming from a relay so you may need a service manual to find which one it is.
BTW, to save frying all of your screwdrivers, applying 12 volts for a moment to the terminal with the smaller gauge wire will cause the solenoid to operate as it was designed. Shorting across the main solenoid terminals lets ~ 100-200 amps flow through your screwdriver which isn't even a very good conductor.
Even a light clip lead to the coil terminal of the solenoid could handle the lower current that flows there.
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