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Need to wire the starter solenoid on a 85 mercruiser 4 cyl marine. Starter is a delco. Its big like a diesel . I just need to know which terminal the yellow and orange wires go to.

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In my manual it says the yellow goes to the terminal marked S this is also the terminal that will get the motor going if you put a wire from the battery + to (the other one will do nothing, no damage or anything!) the orange (tan in the manual) goes to the R terminal. This gives full battery power to the coil when the starter is cranking.

Posted on Sep 19, 2010

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Hello i hope i can get some help here i have been trying everything to get this fixed but someone got under my 99 cavalier 2.2 4 cyl and cut the wires going to the starter and too the starter so i wen


I don't know the 1999 Chevrolet Cavalier, but that shouldn't matter.
Starters have a very simple wiring.
The thing you have to do is find the solenoid wire because all the others go on the one terminal.
Start by attaching the main (thick) cable from the battery to the main terminal on the starter.
Then turn the ign. key on. Nothing will light up.
Try touching each of the smaller wires onto the main terminal until the ignition lights come on. Fit this one to the main terminal permanently.
Now that you have power to the ign. switch, you will be able to find the solenoid wire. It will help if you have a volt meter or test light for the next step.
With someone sitting in the car to work the ign. switch, you test each of the other wires as they turn the switch to the "Start" position. The wire that gets power to it is the solenoid wire and the ONLY one that doesn't go on the main Starter terminal.
The solenoid wire obviously goes to the terminal on the solenoid.

Oct 17, 2014 | 1999 Chevrolet Cavalier

1 Answer

Solenoid wiring diagram


If you have a relay to the starter solenoid then red one from the battery then red from the relay to the starter solenoid. The starter solenoid earth wire goes into the starter housing for the brushes if not then the red wire from the battery goes direct to the starter solenoid big terminal. The other big terminal will already got inside the housing. That takes care of the really heavy wires . The small wire goes to the little terminal between the big terminals.

Jul 27, 2014 | 2000 Ford Expedition

1 Answer

1986 intruder what wires do I connect from igention to start


Wires should go from + battery to ignition switch, starter button, to starter solenoid, then BIG (+) wire from battery to major terminal on solenoid. Then the big wire from the other side of the solenoid to the threaded terminal on the starter. Starter is already grounded. Should work.

Jul 25, 2014 | Motorcycles

1 Answer

Start buttom does not energize starter


Start by disconnecting the starter solenoid small connector and bring 12 VDC directly to the small wire solenoid terminal. If the starter then operates you will know that there is no problem with the starter but with either the low or the medium current circuits. If the starter does not work when you do this you either have a bad starter or solenoid or a poor battery to starter cable or ground etc. If you then test for battery voltage at the wire end of the solenoid small wire end that you removed from the starter by using a voltmeter on it while you press the starter button with the ignition and run switches and you do not get a good 12 VDC reading you will know there is a problem with the low current starter circuit. If the low current circuit is good you should also hear the starter relay click when you press the starter button with the ignition and RUN switches ON. If there is no small click from the starter relay first check the starter fuse and if that is okay there should be 12 VDC to the 30 terminal on the starter relay with the ignition switch ON and the run stop switch in RUN . If there is not then you will have to find out why not. If there is power to the 30 terminal there should also be power to the 85 or 86 terminal (86 is usually the ground but it seems it is not always and sometimes it is the 85 that is the ground). When you press the starter switch if the low current circuit which is through 85 and 86 is good it should pull down the internal relay contact and allow power from the 30 terminal through to the 87 terminal which is the wire out to the starter solenoid small terminal. If the starter relay does not activate you will need to find out why not. If there is power to the 30 and either the 85 or 86 and the other ie the 86 or the 85 has good continuity to ground then the relay is bad and needs to be replaced. If there is no power to the 30 terminal and therefore also either the 85 or the 86 there is either a bad starter fuse or ignition switch or run stop switch or the starter button OR the wiring between them.

Apr 20, 2014 | 2008 Harley Davidson FLTR Road Glide

2 Answers

I didnt take the starter off,so i dont know where the wires go


Most starter motors are set up with 2 big terminals on the solenoid and 2 push on connections between them. One big terminal will have a wire from it going into the motor body and the other will be the one you put the battery lead on. AS to the push on terminals fit on terminal on and touch the starter with the switch if it works ok if not put the wire on the other one and retest. If still in doubt get an auto electrical shop to show you which is which

Mar 30, 2013 | 1999 Chevrolet Silverado 1500

1 Answer

Need to know how many wires go to starter


STARTER HAS 3 WIRES BIG HEAVY RED CABLE IS THE POSITIVE BATTERY CABLE TO STARTER SOLENOID.THE SMALL RED 10 GAUGE WIRE ON STARTER SOLENOID ASLO IS THE FUSE LINK WIRE TO STARTER AND ALTERNATOR.SMALL 10 PURPLE WIRE GOES TO STARTER SOLENOID S TERMINAL MEANING SWITCH.

Sep 28, 2010 | 1999 Chevrolet Cavalier

2 Answers

Sparking under vehicle when trying to start. It has a new battery and new cylanoid.


That sounds like a loose cable from the ignition solenoid down at the starter, or the cable between the starter and the starter solenoid is exposed and touching metal ground on the vehicle. Check the condition of the cable to the starter and also be sure that it is tight, and not touching any metal ground surfaces on the vehicle, and if there is nothing wrong with either then the starter is most likely is faulty.


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Sep 26, 2010 | 1983 Ford F150

1 Answer

How do I mount the harness to the starter?


I assume you have a later model that has the solenoid on the starter. If not, please get back to me.

1. Make sure the negative battery cable is removed from the battery.

2. Big black wire goes to big terminal nearest the starter that also has a short cable going into the starter.

3. Smaller wire (from ignition switch) goes on smaller terminal in the middle.

4. Big red wire goes to big terminal farthest from the starter motor.

If this doesn't make sense, please get back to me.

Sep 20, 2010 | Ford Ranger Cars & Trucks

2 Answers

Looking to reinstall a solenoid for my 84 Bronco II and a buddy mixed up the wiring for it, i have no idea how to reconnect it to the new one.


Big wire from positive from battery goes to big stud facing the battery. Big wire to starter goes on other big stud. Little wire or wires go to little post. If you have 2 little posts they are labeled I (ignition) & S (starter). If you put on wrong little post it wont engage starter when you turn key to start. Just connect it to the other then it will engage starter when you turn the key to start.

Sep 09, 2010 | 1984 Ford Bronco II

1 Answer

I have a JD 750 compact tractor 4X4 diesel it is a 1983 first the ignition key would work off and on then stopped all together I have been jumping it for about a month (yes I know you are not supposed to...


There is a solenoid attached to the starter that does 2 things; engages the starter to the engine (the bendix) and closes a large contactor to feed power to starter.

On the solenoid there should be 3 wires but only 2 may be visible;
One heavy wire goes directly to the positive of the battery, the second goes from the solenoid to the starter and should be really short and sometimes just a heavy braided copper link. This is the one that may not be visible.

The third wire is the one you are after which is much smaller (thinner than the the other two). It may be connected to a screw terminal on the solenoid or it may be a push on terminal. Disconnect it from the solenoid and use a comparable size piece of wire directly from the postive of the battery to this terminal on the solenoid; not the wire you disconnected buy where it connects to the solenoid. BE CAREFULL!! The diesel may start up right away because you are bypassing all the interlock safety features. Best to cut off the fuel supply.

If the starter engages, the starter and solenoid are not the problem. You need to check the following:
  1. Are the battery contacts clean and in good condition?
  2. Is the battery completely charged up?
  3. Is there a seat safety interlock or neutral safety interlock?
  4. Is there a PTO interlock?
Since this is a diesel, the only way to protect the operator from starting the engine under load is by interlocking the starter (there is no ignition sytstem). You need to place a 12 Volt bulb or a meter from the small wire you disconnected from the solenoid (on the wire side not the solenoid side) and place the second connection to ground. Turn the ignition key to "start" and if all the interlocks are closed like they should be the meter should read 12 volts or the bulb will light.
If this tests out fine, you need to test the starter:

Using a car booster cable use one wire only (the red one), attach one side to the positive of the battery, the second (same wire opposite end of the booster cable) to the short side (short heavy wire from solenoid to starter) carefull not to touch the cable to ground!!!!. If you get a big spark when you touch the solenoid tyerminal, and the starter spins (but should not engage the engine), then the solenoid on the starter needs replacing. If the starter does not spin, the starter is pooched and you need a new one.

If you don't get 12volts or the bulb doesn't light at the small solenoid wire, then you either have a bad start switch, open interlock somewhere, blown fuse in series with the start circuit or or bad wiring which you need to trace where it went open. Finding the open circuit is actually easy.

Aug 19, 2009 | Garden

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