Electrical ?

[Taylorman]

Can someone tell me what the purple wire going from the R on the starter solenoid to the ignition switch is for?
http://www2.***boat.com/image_center...ng_Diagram.jpg

[lucky]

run - position - power supply

[MikeF]

run - position - power supply
What he said. :rollside:

[lucky]

from info.
Standard Boat Wiring color Codes.
Blk -Grounds-General
Blk/Brn -Pump Grounds
Blk/Red -Voltmeter Grounds
Blk/Org -Isolated Accessory Grounds
Blk/Yel -ignition stop
Blk/Grn -Water Level Sender Ground
Blk/Blu -Lighting Grounds
Blk/Gry -Nav Light Grounds
Blk/Wht -Battery Parallel Solenoid
Brown -Pumps-General, Bilge or Sump (Manually Switched)(Also alternator starter to Ign.)
Brn/Red -Pumps, Bilge or Sump
Brn/Org -Power feed to Auto Bilge Switches-Pumps, Fuel/Oil Tranfer or Priming
Brn/Yel -Baitwell or Aerator
Brn/Grn -Fresh Water Pump/Water Maker
Brn/Blu -Head Pump
Brn/Vio -Washdown Pump
Brn/Wht -trim pos sender
Red - Battery Feeds Unprotected
Red/Vio -Misc. Accy. Main Feed Protected (fused) from batt to trim panel.
Pink -Fuel Sender
Org/Blk -Audio System Feed
Org/Brn -Electric Head-Sanitation System
Org/Red -Wiper Port
Orange -Accessories common feed- Dist Panel to Acc switch-Anode Electrode-Mercathode
Org/Yel -Diesel Pre-heat
Org/Grn -Wiper Stbd
Org/Blu -Communications Equipment
Org/Vio -Navigation Equipment
Org/Wht -Wiper Center
Yel/Blk -Choke - Neutral saftey trans mounted
Yel/Red -Start Solenoid(starting circut), Neutral Safety
Yel/Org -Powered Ventilation, Fans
Yellow -Bilge Blowers -(also alternator DC output)
Yel/Wht -Rudder Angle Sender
Grn/Red -Stop Solenoid/Kill Switch
Grn/Yel -AC Grounding
Green -Bonding
Grn/Wht -Engine Trim in and or tilt down
Grn/Org -Engine Independent Trim down
Blu/Blk -Cabin Lights
Blu/Brn -Oil Temp Send
Blu/Red -Cabin or Cockpit Lights Port
Blu/Org -Engine Independent Tilt Up
Blu/Yel -Lighting Circuits to Remote Send
Blu/Grn -Cabin or Cockpit Lights Stbd
Blu -Instrument & General Lighting
Blu/Vio -Courtesy, Boarding Lighting
Blu/Wht -Engine Trim Outand/or Tilt Up
Light Blue -Oil Pressure
Vio/Red -Eng. or Generator B+ from Breaker
Vio/Yel -I/O Trim Up (ballast bypass)
Vio/Grn -I/O Trim Down
Vio -12v Ignition-Generator or Engine
Vio/Wht -Trim "Trailer" switch
Gry/Blk -Mast Light
Gry/Red -Spotlight Remote
Gry/Org -Docking Lights
Gry/Grn -Strobe or Beacon
Gry/Blu -Spreader/Flood Lights
Gry/Vio -Windlass/Winch
Gray -Navigation (running) Lights, Tach. Send
Gry/Wht -Anchor Light
Wht/Brn -Temp. Alarm or Indicator
Wht/Red -Fuel Alarm or Indicator -((Ignition module to Dist.)Mercury Thunderbolt Ignition)
Wht/Org -Fire Alarm or Indicator
Wht/Yel -Air Flow Alarm or Indicator
Wht/Grn -Water Press/Flow Alarm or Indicator - ((Ignition module to Dist.)Mercury Thunderbolt Ignition)
Wht/Blu -Oil Press Alarm or Indicator
Wht/Vio -Voltage Alarm or Indicator
White -General Alarm Usage, Yamaha Kill Switch
Tan - Water Temp sender
Tan/Blu -Warning system sense wire (Audio warning)
Pink -Fuel sender
and i can't find it here lol

[Taylorman]

run - position - power supply
So it provides 12V when the engine is running? Why does the wire go from the solenoid to the ignition switch then to the gauges.

[lucky]

So it provides 12V when the engine is running? Why does the wire go from the solenoid to the ignition switch then to the gauges.
that is a remote solenoid - Its a ford version of the one On your chevy starter so actualy it comes from your Chevy starter alot easier to jump if you ever have to
think of that particular pole on the solenoid as "the positive post on a battery " I think it runs at 9.6 volts ( i'm shooting from the hip on this one ) and is a constant power sorce so when you turn you key on - your guages will be "energized" , -- When you turn off the key - you will not have power to the guages - and they go off ! :idea: you can also power a stero off of this pole
are you going to rewire your boat ? I'm thinking of doing mine this year and was going to do away with my terminal block and run a weather tight pole connector and fuses -- my engine loom will be ONE Plug for ease of removal :idea:

[myoung]

The purple wire is a 12v supply from the solenoid that would normally bypass a ballast resistor before the coil while cranking the engine. This gives a hotter spark while cranking and then the coil input voltage is reduced for running so the coil doesn't burn up. Funny thing is, the purple wire would not even be necessary in this diagram at all. The diagram is for an electronic ignition system the reduces the voltage going to the coil within the ign. control box. The confusing part is that this diagram shows no ign. switched wire going to the ing. system. All the MSD ign. systems I've seen have a wire going into the box that you hook a switched 12 volts to with no ballast resistor.
Another way of looking at the confusion of this particular diagram is that the purple wire should be shown going from the ign. switch to the ign. control, not to the starter solenoid.
Link to MSD marine ign. wiring diagram here (http://www.msdignition.com/pdf/6460_frm23105.pdf)

[myoung]

So where did you find that diagram anyway?

[myoung]

are you going to rewire your boat ? I'm thinking of doing mine this year and was going to do away with my terminal block and run a weather tight pole connector and fuses -- my engine loom will be ONE Plug for ease of removal :idea:
This is the way it should be done. Better yet, this is the way it should have been done for a long time. The fact that bus bars are still used amazes me. They went out with the dinosaurs. Weather tight plugs have been around long enough for people to get a clue.
I have the ultimate screw up in my boat I have to rewire, every single wire in the entire boat is the same wire. Same size, same color with little stick on numbers that are missing off of half the wires.

[Oldsquirt]

So where did you find that diagram anyway?
I'd like to know as well. As "nice" as it, and some others I have seen, look, you have to be wary of mistakes and just plain bad layouts.
Lucky, that's not a remote Ford-type starter relay. Just an "artist's rendition" of a GM starter.