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Unread 12-06-2009, 01:07 PM   #1
pistol
Registered User
1990 YJ Wrangler 
 
Join Date: Feb 2009
Location: san diego
Posts: 145
need wiring diagram

i have tryed the search with no luck if anyone has a basic motor and starter harnesses it would help alot thanks

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Unread 12-06-2009, 04:37 PM   #2
JeepHammer
Running On Empty...
1973 CJ5 
 
Join Date: Aug 2007
Location: South West Indiana
Posts: 10,212
You won't find a lot of YJ stuff over here in the CJ section...
Sorry.

This *MIGHT* Help, don't know how similar your YJ will be to a CJ...

Jeep DuraSpark ignition, *IF* you still have one in '90...
The 'Violet' wire in this diagram will go through a timing computer before it gets to your ignition module.



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This is the basic Start/Charge system in a CJ, don't know if it will help in your YJ,



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This is the alternator wiring in the later versions of the CJ with the Delco 10-SI alternator.



---------------------------------

Is this the kind of stuff you are looking for?

You should try to tell what engine you have, wiring harnesses change from engine to engine with year model (Different alternators, ignitions, ect.)
If you have fuel injected engine, then all bets on the stuff I posted are out the window...
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Unread 12-06-2009, 04:54 PM   #3
pistol
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1990 YJ Wrangler 
 
Join Date: Feb 2009
Location: san diego
Posts: 145
thanks that will help out alot i have done a hole jeep before but just want to make sure thanks
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Unread 12-06-2009, 05:00 PM   #4
pistol
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1990 YJ Wrangler 
 
Join Date: Feb 2009
Location: san diego
Posts: 145
the jeep is a cj3a i had a thread on this forum (doin work on a cj3a ) it has no wiring and the motor is a 225 v-6 and i just want to keep it as simple as i can i don't know if that will help you help me jeephammer thanks
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Unread 12-07-2009, 08:53 AM   #5
JeepHammer
Running On Empty...
1973 CJ5 
 
Join Date: Aug 2007
Location: South West Indiana
Posts: 10,212
CJ-3A will probably have a DC GENERATOR instead of an ALTERNATOR.
That means a mechanical voltage regulator that will need to be 'Polarized'.

I know some of the older Jeeps had floor mounted pedals/switches for starter, and if that is the case, the starter will have to be wired a little differently.

225 should have the common starter wiring, but the solenoid might be on the starter instead of the fender well.
Same wiring applies, but you will NOT have to add the wire between solenoid and starter since there will be a connection already made.

Get me some pictures of the components, generator, starter, ect. and we can go from there.
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Unread 12-08-2009, 07:20 PM   #6
pistol
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1990 YJ Wrangler 
 
Join Date: Feb 2009
Location: san diego
Posts: 145
is what im looking for is more like how to wire it key to the solenoid to the starter very basic thanks for your help
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Unread 12-09-2009, 07:21 AM   #7
Mike Romain
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1986 CJ7 
 
Join Date: Nov 2007
Location: Off the Grid in Chester Grant, Nova Scotia, Canada
Posts: 13,603
The Haynes CJ manual works well for your YJ's 258 and Jeephammers post should apply to your engine bay.

The only real difference is a firewall starter relay instead of a fender relay.solenoid, most of the rest is the same. i have used the CJ book to rewire a couple YJ engine bays.
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86/00 CJ7 Laredo, 33x9.5 BFG AT's, 'glass nose to tail in '00, 'New' frame,wires and plumbing in '09. Carter BBD Carbed 4.0 HO in '10.
89 YJ Renegade. BBD Carbed 4.0 HO. Locked front and rear with 33x9.5 BFG AT's
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Unread 12-09-2009, 07:01 PM   #8
pistol
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1990 YJ Wrangler 
 
Join Date: Feb 2009
Location: san diego
Posts: 145
thanks i got it all done today . im sorry i should ha made it more clear i was working on a cj3a that i put a 225 v6 in
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