The Hull Truth - Boating and Fishing Forum

Go Back   The Hull Truth - Boating and Fishing Forum > BOATING FORUMS > The Boating Forum


Random Quote: I like my wife----I love my boat
Thread Tools Search this Thread
Old 06-21-2005, 01:48 PM
Junior Member
Join Date: Jan 2003
Location: Bloomfield,NJ U.S.A.
Posts: 2
Default Wireing Diagram for Mercury 50 HP 4 stroke

Can anyone send me a copy of a wireing diagram for a 1999 50 HP Mercury 4 storke.
The problem I am having is I can not start the motor from the key. If I remove one of the red wires and put battery to the remaining red wire and turn the key the motor will start.
I need to know where the red wires are going.


George A. Sendecki is offline   Reply With Quote
Old 06-21-2005, 08:08 PM
Senior MemberCaptains Club Member
Join Date: Feb 2005
Posts: 12,580
Default Re: Wireing Diagram for Mercury 50 HP 4 stroke

On my 175 EFI Mercury the red wire comes from the battery, via the starter solenoid, through a 20 amp fuse to the switch at the helm. From there power is made available to the instruments, ECM, trim/tilt motor and starter motor. I think this is conventional wiring and yours would be the same, or similar.

Here is a link to a Mercury maintenance manuals. A wiring diagram of sorts should be in there for your motor. See page 2B-25.

jethro1 is offline   Reply With Quote

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Yamaha 150 - 4 stroke vs Mercury 115 - 4 stroke BARNEGATBAYMAN The Boating Forum 6 01-23-2008 07:10 AM
Mercury 2-Stroke Oil in a Yamaha 2-Stroke? Split Shot - Mike The Boating Forum 16 01-03-2008 02:14 PM
Mercury Optimax vs Mercury 2 stroke ELPTO Jim Sanford The Boating Forum 3 03-14-2007 12:46 AM
Wire Diagram 96 Evinrude 115 2-stroke Jim_Arndt The Boating Forum 5 07-22-2006 03:32 AM
Mercury 70hp switch wiring diagram needed. captkenr The Boating Forum 1 06-22-2004 03:42 PM



Powered by vBulletin® Version 3.7.6
Copyright ©2000 - 2015, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO 3.2.0