Author Topic: ltd electrical problems  (Read 9011 times)

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ltd4402012

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ltd electrical problems
« on: December 08, 2012, 05:42:45 PM »
Hello everyone I was wondering if any of you guys could shed some light on my situation. To start out I have 2 Ltd's an 81 and a 82. The 82 was in a fire the wireing was destroyed save for the CDI box and regulator and the motor was seized. But the body is in great shape. This is my long term project. The 81 didn't run when I got it either the wiring was a hack job and the case was full of coolant and oil. I got the case cleaned out and put all new gaskets in it' and got a new wiring harness. I used the CDI ,coils and regulator off of my 82 Ltd but It won't start, it seems that only one plug is getting a good strong spark. Also t,here are 2 wires coming from the case wiring harness that I do not have hooked up the one is black and the other is grey. I'm not exactly sure where they go. And could someone please help me out with the firing order

jimvw57

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Re: ltd electrical problems
« Reply #1 on: December 09, 2012, 12:44:03 AM »
The LTD only has 2 cylinders, and 4 plugs. The nature of the beast is that it fires every time the piston hits the top of it's stroke. Both coils fire at the same time so it really doesn't matter which wire goes on which plug as long as it reaches OK.

sounds like you have a bad set of coils. You can purchase aftermarket spark lug coils and wire them together. It will work fine.

Black and Grey wires should go to CDI box from the ignition switch.

Check and make sure head is flat. Oil and coolant in the crankcase is not a good sign. Are you sure it wasn't from pulling the motor apart??
« Last Edit: December 09, 2012, 12:50:06 AM by jimvw57 »

ltd4402012

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Re: ltd electrical problems
« Reply #2 on: December 09, 2012, 03:26:05 PM »
Thanks I'll try the other set of coils I have. I know the coolant and oil was there before I pulled the motor, I picked it up after it sat for a while due to a blown head gasket. I know the head surfaces are flat as I'm getting 125-130 psi of compression on both cylinder, looking at the motor there are a red and a white wire that go to the cdi box and then a harness that has 2 yellow 1 brown a black and a grey wire, that has the 5 pin connector at the end, but the black and grey are cut and just hanging behind the 5 pin connector on the motor harness

jimvw57

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Re: ltd electrical problems
« Reply #3 on: December 09, 2012, 08:45:13 PM »
that would be why it won't shut off with the key or the kill switch.