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Author Topic:   Marine Wiring Color Code
jimh posted 07-30-2005 09:22 AM ET (US)   Profile for jimh   Send Email to jimh  
Information about marine electrical wiring and common color codes used in Boston Whaler boat is available in the REFERENCE section. This article has just been updated to include information about color codes seen on OMC outboard motors (JOHNSON and EVINRUDE brands).

http://continuouswave.com/whaler/reference/wireColorCode.html

LHG posted 08-01-2005 03:06 PM ET (US)     Profile for LHG    
Jim - From Mercurymarine.com, you can pick up the Mercury color coding. Some of it looks similar to the OMC colors.

I think the Japanese motors use a different color code.

jimh posted 08-02-2005 10:17 PM ET (US)     Profile for jimh  Send Email to jimh     
Added chart showing Mercury color codes.
ratherwhalering posted 08-03-2005 03:33 PM ET (US)     Profile for ratherwhalering  Send Email to ratherwhalering     
Man, that is good timing, and very helpful! Thanks Jim.
jimh posted 05-09-2006 09:55 PM ET (US)     Profile for jimh  Send Email to jimh     
Added information on Yamaha wiring color codes taken from factory publication.
jimh posted 03-23-2007 07:27 AM ET (US)     Profile for jimh  Send Email to jimh     
Added information on Honda wiring color codes.
jimh posted 05-25-2009 02:40 PM ET (US)     Profile for jimh  Send Email to jimh     
Added information about wire color codes in Evinrude E-TEC motors.
DeeVee posted 05-29-2011 02:12 PM ET (US)     Profile for DeeVee  Send Email to DeeVee     
Concerning the E-TEC key swItch wiring colors and designations, what does "Bootstrap" refer to on the black-orange wire? Thank you,

Doug Vazquez

jimh posted 05-30-2011 08:58 AM ET (US)     Profile for jimh  Send Email to jimh     
At the E-TEC end of the wiring MWS harness connector, pin 6 is connected to a black/orange conductor which runs to pin 8 of J1-A on the EMM. In previous models this position of the MWS harness connector was associated with the CHOKE circuit and used a VIOLET with WHITE STRIPE conductor. The E-TEC does not use a CHOKE in starting.

The term "bootstrap" is used in electrical circuits in the sense conveyed in the old expression, "pulling oneself up by one's bookstraps." In the E-TEC the bootstrap circuit is associated with re-programming of the EMM, and a specialized adaptor tool is used in conjunction with this circuit. This circuit is not used in normal operation of the engine.

DeeVee posted 05-30-2011 10:26 AM ET (US)     Profile for DeeVee  Send Email to DeeVee     
Jim,

Thank you for the explanation.

Doug vazquez

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