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Old 05-22-2019, 01:51 PM   #1
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wire on starter (red)

I have a red wire on the starter of my perkins 6-354 200 hp. in a Mainship 1, It goes to a fuse holder mounted on the eng stringer next to eng, It goes into the wire harness , I think it may go to the switch for the air intake heater, it looks like the same size and color as the wire on the heater. should I just get in there with a test light and see if the fuse gets power when I push the button ?. prob is I cant use the light and push the button at the same time . I don't own a multi meter so need a test lite , just thought someone might know , before I break my butt trying to get down there.( I'm fat) Thanks.
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Old 05-22-2019, 02:50 PM   #2
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Does it matter?

Or are you looking to diagnose a problem?
If so what is the problem?
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Old 05-22-2019, 07:09 PM   #3
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Buy a multimeter. You will need it time and time again.
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Old 05-22-2019, 07:28 PM   #4
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When you remove the fuse what happens? I m guessing that fuse is the control power for the engine panel
What is the problem you are trying to diagnose?
Ps a digital VOM will pay for itself dozens of times over and is concidered essential cruising gear.
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Old 05-22-2019, 09:16 PM   #5
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Originally Posted by tiltrider1 View Post
Buy a multimeter. You will need it time and time again.
I second that.

I can not see how anyone can go through life without at least one digital multimeter, especially on a boat.
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Old 05-22-2019, 10:28 PM   #6
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I concur. Buy the DVM or hire a pro with a DVM.

Which is preferred?
My boat is my ark. It's my mobile treehouse and my floating fishing cabin. It's my retreat and my respite. Everyday I thank God I have a boat! -Al FJB

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Old 05-22-2019, 11:52 PM   #7
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Where does the red wire attach to the starter - at the main cable terminal or on a smaller terminal? Usually a glow plug/intake air heater goes thru a relay and the button only turns the relay on (so 12v power doesn't have to go to the steering station and back, just from the starter main terminal or 12v pos buss.

When I'm tracing wiring by myself, I use a 12v bell added to the circuit.
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Old 05-23-2019, 06:28 AM   #8
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I'll echo the others' query- what's the problem? Basic troubleshooting has at the root defining the problem. The other tenet of troubleshooting is to know how something is supposed to work. If you don't know HOW it works, there's no way you can know if it's NOT working, and the extension of that is that you can't fix what you don't understand.

It sounds like you're pursuing a solution in search of a problem.
Define the problem.
Yes, get a DVM.
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