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TECHNICAL MOTOBRICK WRENCHING In Remembrance of Inge K. => The Motobrick Workshop => Topic started by: Gr-Racing on July 27, 2017, 04:33:16 AM

Title: Help me identify wires , brick gurus
Post by: Gr-Racing on July 27, 2017, 04:33:16 AM

Well im working on bringing back to life a brick project i bought with no luck so far, change fuel pump and other minor stuff now im trying to get it to start with no luck.
Hoping you guys can help me out i check and have spark but the fuel pump is not working and the bike has a few wires unplug maybe you guys can tell more about these wires
Thanks for the help




Their is a brown wire that looks like it has a connection but wanted to ask before pluging also is the big wire harnes extra or connects to something.


Ps their is also a raw wire that was burn that im going to have to trace back cause i have no clue

Title: Re: Help me identify wires , brick gurus
Post by: Chaos on July 27, 2017, 09:44:55 AM

The brown wires are generally grounds.  Not sure about the big plug, but if there is not a mate lying around it may have been to a radio.  Should be able to find a wiring diagram online. 

Title: Re: Help me identify wires , brick gurus
Post by: jaxon on July 27, 2017, 10:11:04 AM

I'd say the plug goes to the ignition module under the tank that sits under the wedge in the frame.

Title: Re: Help me identify wires , brick gurus
Post by: Inge K. on July 27, 2017, 02:02:59 PM

The plug is for a OEM alarm and immobilizer system.

You need to bridge contact 10 and 12 together (both is brown/red) to get the starter to function

Title: Re: Help me identify wires , brick gurus
Post by: rbm on July 27, 2017, 04:53:57 PM

You're starting from behind the 8-ball.  You have very non-standard wiring and connectors, lots of apparent modifications and additions and it's not a good sign when you have toasted wires.  There may be mayhem resulting from that incident going on inside the harness.  The brown wires terminating in 1/4" female and male spade connectors may be associated with the OEM alarm (can't say for sure having never seen an installed alarm) but they are non-standard for a stock K75.  I can see Scotchlok IDC connectors (which are bad news) that indicate PO additions. 


Start by tracing back that burnt wire.  If it disappears into the harness, then you'll probably have to start dismantling the harness to see where it goes and what collateral damage it has wreaked.  If you can discern an insulation colour code, then report it here and we can probably help identify what it is.

Title: Re: Help me identify wires , brick gurus
Post by: Gr-Racing on July 27, 2017, 06:29:08 PM

Thanks for all the help guys,  will start tracking that burnt wire and i will see were it takes me, i will let you know soon what i find.




Thanks

Title: Re: Help me identify wires , brick gurus
Post by: Gr-Racing on August 03, 2017, 05:06:56 AM

Thanks for all the help i follow the burn wire back and big surprise the wire is burn all the way to the ground under the tank also took that extra harness off i think it was for a radio or something but it was all a mess now i got 2 plugs left unused are they oem? one of them goose to another jack connect on the side






The one of the ground under the gas tank goose staright to the negative terminal of the battery?

Title: Re: Help me identify wires , brick gurus
Post by: Inge K. on August 03, 2017, 06:24:23 AM

Quote from: Gr-Racing on August 03, 2017, 05:06:56 AM

now i got 2 plugs left unused are they oem?

The round white one is for an earlier version factory alarm than the harness you allready have removed,
the round black one is for other optional extras.

Title: Re: Help me identify wires , brick gurus
Post by: Scott_ on August 03, 2017, 07:27:34 AM

Quote from: Gr-Racing on August 03, 2017, 05:06:56 AM

one of them goose to another jack connect on the side

That's a power jack for external accessories, or it can be used for connecting a battery tender.

Title: Re: Help me identify wires , brick gurus
Post by: Gr-Racing on August 03, 2017, 11:33:59 AM

Thanks for the help, one of the ground under the gas tank was ran straight to the negative side of the battery is that correct?

Title: Re: Help me identify wires , brick gurus
Post by: Inge K. on August 03, 2017, 07:20:05 PM

Quote from: Gr-Racing on August 03, 2017, 11:33:59 AM

one of the ground under the gas tank was ran straight to the negative side of the battery is that correct?

Non OEM, but a smart upgrade..........exept when/if you get welded starter relay contacts.