GS 850 ignition wire question

[jkevinlilly]

My son recently picked up an early eighties GS850 where the P.O. had "altered" the electrical system.
He is in the process of replacing this modified wiring harness with a factory one he picked up on ebay. But, the wiring harness has a four wire/plug connection, and the ignitor only has three wires coming out of it, the connection plug is gone. He says the color coding on the wires do not match. Any ideas on how to figure out what wire on the plug matches up with which wire on the ignitor, and what the 4th wire on the harness should connect to?

Please remember I am not an electical guru type, and am only really familiar with the GT series bikes.

Kevin

[hikermikem]

http://members.dslextreme.com/users/bikecliff/

Here's a link to one of our member's web site - has tons of GREAT data, perhaps you can find a service manual and/or wiring diagram here...

Good Luck,

[bwringer]

We're gonna need more info as to exactly what model year the bike is vs. the year of the wiring harness.

[jkevinlilly]

hikermikem
Got it sparking yesterday, thanks for the info on the link.

Kevin