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1982 mariner/yamaha 40 hp key switch wiring.

T

trimn25

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Have a 1982 40hp mariner/yamaha with external key switch wires, Got it for 225.00 heard it run via pull start, started right up. picked up a mercury key switch with push to choke. Wire colors dont match. I dont want to burn any thing up ,because it does run good. just want to be able to turn the key. Switch wires are red, black, violet, black w yellow , yellow w red, yellow w black.. 6 wires on key switch.. Now for the engine harness , red, black, yellow, green, blue, white, brown,. The harness has 7 wires. can anyone help me with this . I tried to follow the wires but got nervous, I would burn something up. Thank you .​
 
Red accessory key on wire. Black ground. Violet or purple constant power. Black yellow kill switch. Yellow red neutral safety yellow black not sure
Engine harness black ground yellow?? Green and blue is trim up trim down. Brown temperature. White? Grey is tach
Engine designed for electric start?? Starter and charging already set up ??
 
Cancel not very accurate some models use diff wires colors . what is serial #
Is there not 8 pin harness or r u cutting in to that??
 
When looking at Mariners,first thing to consider is,are you in Europe,Asia or Austriala?After that,if not made in USA,then,is it's a case of "Made in Japan". If that's the case it's a Yamaha.Look for Yamaha wiring. When I'm sober,I'll come back to you.
 
Thanks Havaclue, Sorry I didnt get right back to you. I think I may just sell it the way it is. I thought it would sell better and at a higher $$$ if I could just hit the switch. It starts with the pull cord. But thats the main reason I got it so cheap, The guy had a hard time starting it when I looked at it. Only gave $200.00 for it, Have any Idea what its worth??? thanks Ed
 
Sometimes I wonder why people post when they have no idea....
Key Switch Engine Harness
Red-----------------Red------- 12V +
Black---------------Black-------Ground
Violet (purple)------Yellow------12V Ign
Black/Yellow--------White-------Kill Circuit
Yellow/Red----------Brown------Start Circuit
Yellow/Black--------Blue---------Choke Circuit
Green--------Tach wire...Goes to tach and not to key switch

No ifs, buts or maybes... Thats how they go....
 
Thankyou Tonyaus, I will try this out when I get back to it, You have been a great help. I have been scanning the internet for this answer, And it seems like this is one big mistery that no one wants to touch. And I have looked every where. It looks like it is a common problem too. Thanks again. Ed
 
First my apologies for not getting back to you in the morning,I would have had to dig out my drawings.But tonyaus got them for you.He's right,people who haven't a clue shouldn't post.;)
http://www.boats.net/parts/search/Merc2/Mariner/parts.html .Here is a link to Yamaha/Mariner 40HP. Start at 40A (above prop exhaust) to 40C (twin carb w- auto blend). You'll need your number to pinpoint the exact year and model.
The reason it's difficult to find info on the Yamaha/Mariner is that most sites are US based.
Yamaha built Mariners for Mercury,from the '70s through to '92-'93, up to 60HP. They were copies of older Yamahas,painted gray and sold as Mariner.
You can't find much about pre '84 Yamaha.As,again,most sites are US based and info only goes back to '84,which is no use if you want parts from a '78 40 to fit your '82 Mariner 40.
 
Here's a few things that may help. It may also help to get a Yamaha key switch.
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Marine Wiring Color Codes

Mercury Outboard Wiring

The following color coded wiring is often seen in outboard motors with the Mercury or Mariner brand. This information was provided by Mercury Marine.

Table 3. Mercury/Mariner Standard Outboard Wiring Color Code, after a similar table from Mercury Marine.



Color

Function



Black

All Ground



Brown

Reference Electrode MerCathode System



Orange

Anode Electrode MerCathode System



Lt. Blue/White Stripe

Trim UP Switch



Lt. Green/White Stripe

Trim DOWN Switch



Brown/White Stripe

Trim Sender to Trim Gauge



Purple/White Stripe

Trim "Trailer" Switch



Gray

Tachometer Signal



Black/Yellow Stripe

Shorting or Stop Circuit



Pink

Fuel Sender to Gauge



Red

Unprotected Wire from Battery



Red/Purple Stripe

Protected (Fused) Wire from Battery



Red/Purple Stripe

Protected (12 Volt +) to Trim Panel Control



Purple

Ignition (Switch) to 12 Volt Positive



Tan

Temperature Switch to Warning Horn



Tan

Temperature Sender to Temperature Gauge



Tan/Blue Stripe

Temperature Switch to Warning Horn



Yellow

Starter Solenoid to Starter Motor



Yellow

Stator to Regulator (Charging Circuit)



Yellow/Red Stripe

Start Switch to Start Solenoid to Neutral Start Switch



Yellow/Black Stripe

Choke (Enrichener System)



Green with Color Stripe

Switch Box to Coil - Striped and Numbered



White/Black Stripe

Bias Circuit (Switch Boxes)


Yamaha Outboard Wiring

This information was provided by secondary sources but is believed to be accurate.
BLACK = Ground
RED = Battery Positive; SW3 Oil warning red light V4
YELLOW = Ignition ON 12-volts; Four-stroke lighting coil
BLUE = Instrument lights; choke; choke circuit;
Ground potential oil transfer; High speed Charge Coil
GREEN = Tachometer signal; lighting coil lead; knock sensor
ORANGE = Trim position sensor
PINK = Oil and overheat signal ground
WHITE = Ignition stop circuit; SW1 oil transfer off position V4
BROWN = Starter circuit; Low speed charge coil; Positive "+" potential
to oil transfer pump; SW2 transfer on position V4
GRAY = Warning circuit lead; Over-rev. control; Four-stroke tachometer
SKY BLUE = Trim up
LIGHT GREEN = Trim down
YELLOW/Red = Diagnostic lead from ECU
PURPLE = ECU groud to enrichment solenoid V76
BLACK/Yellow = Thermo sensor
BLACK/Red = Remote oil tank ground return, PBS to tachometer,
Low speed charge coil
BLACK/White = Ignition coil primary lead
GREEN/Blue = Crank position sensor
GREEN/Red = Red oil warning light ground through SW3 in main tank oil
sensor to tachometer
GREEN/White = Crank position sender; Lighting coil lead to rectifier
BLUE/Green = Main tank oil level sensor SW2 oil transfer circuit
BLUE/Red = Main tank oil level sensor SW3. No oil warning circuit
BLUE/White = Main tank oil level sensor SW1; Oil transfer OFF circuit
BLUE/Yellow = Shift cut switch
PURPLE/Red = OX66 #1 injector
PURPLE/Black = OX66 #2 injector
PURPLE/Yellow = OX66 #3 injector
PURPLE/Green = OX66 #4 injector
PURPLE/Blue = OX66 #5 injector
PURPLE/White = OX66 #6 injector
RED/Yellow = Key on power through fuel relay pump; power to ECU;
Fuel pump and fuel injectors
WHITE/Red = #1 pulser V6
WHITE/Black = #2 pulser V6
WHITE/Yellow = #3 pulser V6
WHITE/Green = #4 pulser V6
WHITE/Blue = #5 pulser V6
WHITE/Brown = #6 pulser V6
YELLOW/White = Electric fuel pump for electric carb system (ECS)
 
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Thank you everyone for the replies, I hooked the key switch up with a fresh batt. and I get nothing. Wont even pull start with the keyswitch ON or OFF. I disconnect the key switch and it pull starts second pull , Just dont get it. Any ideas?? Thanks Ed
 
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