how to start without start switch?

[luisdeleon]

before i buy new batt and switch i want to start it, anyone now how? it's a 77 35hp johnson

thanks

luis

 

[ezeke]

Re: how to start without start switch?

You can rope start it. Put it in neutral, turn the ignition switch to the run position and use the choke until it fires.

Be sure to have water running through the cooling system before you crank it.

If you don't have a ignition switch, trace the black and yellow kill wire and disconnect it from ground. You will have to choke the engine to stop it.

 

[luisdeleon]

Re: how to start without start switch?

all my 5 wires on my external harness are cut so i don't have a switch, i want to know what wires to connect to get the egnition on? i tried the black and yellow, and red with violet and got some spark so i stoped. i wanted to just connect some jumper cable to the starter to get it to spin. and try to start it but i know i need the egnition to be on.

 

[luisdeleon]

Re: how to start without start switch?

i was looking at this ingnition page and say that to turn it on i need to connect the red/violet(B) with the ?(AorI) i have 5 wires red/ violet,white,black, black/yellow,volet/white
http://continuouswave.com/whaler/reference/ignitionSwitch.html

was just looking at it and saw that where the electric choke is suposed to be there there is no wire for it. could it be posible that this motor did not come with electric choke? on that the volet/wite is my ign on?

 

[luisdeleon]

Re: how to start without start switch?

does anyone have a wireing diagram for the 77 35hp johnson engine?

 

[Silvertip]

Re: how to start without start switch?

You don't need anything connected to the engine harness. This is a magneto ignition, not a battery ignition. Jump the starter solenoid and the engine will spin. The problem arises when it comes time to stop it. The ignition must be shorted to ground to kill the engine. So without a switch you need to choke the engine, disconnect the fuel line, or pull the spark plug wires. Below is a picture of how to jump the solenoid. You don't need a switch as shown. A simple piece of wire will work fine. I have one of these in my boat in case I ever do need to jump the solenoid.

Here is a typical ignition switch and the pin-outs.

 

[ezeke]

Re: how to start without start switch?

Be careful with the wiring. Any voltage at all riding the Black and yellow kill wire (large M post) will instantly destroy your expensive powerpack.

Any voltage at all in the wrong direction will instantly destroy the rectifier.

The switch wiring diagram above is incorrect for your motor as to the colors of the kill wire (large M), and the choke wire (C).

The harness choke wire is purple with a white tracer. The Starter (S) wire is white. The battery (B) wire is purple and red indicating a fuse.

 

[Whoopbass]

Re: how to start without start switch?

I did it on a 50 hp Johnson and it was a piece of cake.

Just get a battery with two leads coming off it. Remove a bolt out of the starter bracket, place the negative cable behind that and screw it back down.
Touch the hot positive cable onto the positive part of the starter and hold it there until it starts. Choke to die.

 

[luisdeleon]

Re: how to start without start switch?

Be careful with the wiring. Any voltage at all riding the Black and yellow kill wire (large M post) will instantly destroy your expensive powerpack.

Any voltage at all in the wrong direction will instantly destroy the rectifier.

The switch wiring diagram above is incorrect for your motor as to the colors of the kill wire (large M), and the choke wire (C).

The harness choke wire is purple with a white tracer. The Starter (S) wire is white. The battery (B) wire is purple and red indicating a fuse.

this looks close but guys, i don't have a solid voilet wire
white, red/voilet tracer, voilet/ white tracer, black, black/ yellow tracer are the wires i have, so far i indicated them all but have no solid violet for the ign.
anyone?

 

[luisdeleon]

Re: how to start without start switch?

so i took pics of the harness and found i have a red unfuesed wire connected to the starter solenoid and followed it to the Terminal Block which is the forth one connected to red wire,as shown in the first two pics i found the Violet wire connected to the Terminal Block last one on the right and connected to nothing that will be my choke. so I'm guessing that that red unfuesed wire is my ign. which seems to be on at all times.thats why i only have five wires in my external harness, just a guess, anyone?

external harness

 

[luisdeleon]

Re: how to start without start switch?

another question, can the engine be turned off, even though the egnition wire is still on, by connecting the two blacks together.

 

[ezeke]

Re: how to start without start switch?

Obviously, the solid violet or purple wire is an outgoing wire for providing 12V voltage to your accessories. Accessories include gauges. When you get your gauges set up, you can add your own purple wire to A. Whenever the ignition switch is in the run or start position, the "A" will have power.

If you use the ignition switch, turning the ignition switch to "Off" will close the circuit (black to black and yellow) and cut the engine off.

According to my wiring diagram for your specific motor your wiring harness has five wires and the colors that you show are correct.

The fourth screw on your terminal block should have a red wire that runs from the large post on your starter solenoid. It should be connected with the red wire from your rectifier. That is the wiring for charging your battery. Nothing else should be connected to it.

 

[luisdeleon]

Re: how to start without start switch?

thanks! am I right about the second red wire? is it the ignition on?

 

[luisdeleon]

Re: how to start without start switch?

i was thinking instead of a key switch can i use some push button switches? like the white and red/violet on a push button to start, and another for the two blacks to turn off. I really don't need a key switch, i never leave my boat unatended and at the dock i am always with someone to watch it.

 

[ezeke]

Re: how to start without start switch?

Click the diagram for a basic view of the ignition wiring. Points two and three are the ground and positive wiring that activate the starter solenoid, allowing the battery power to flow through the solenoid, directly to the starter.

If you have the battery connected, you can activate the solenoid by taking power from the large solenoid post (6) to the small solenoid post (3).

Notice the fuse holder on the positive wire leading from the large solenoid post to the ignition switch.

 

[luisdeleon]

Re: how to start without start switch?

Click the diagram for a basic view of the ignition wiring. Points two and three are the ground and positive wiring that activate the starter solenoid, allowing the battery power to flow through the solenoid, directly to the starter.

If you have the battery connected, you can activate the solenoid by taking power from the large solenoid post (6) to the small solenoid post (3).

Notice the fuse holder on the positive wire leading from the large solenoid post to the ignition switch.

thanks. so it will work

 

[luisdeleon]

Re: how to start without start switch?

The fourth screw on your terminal block should have a red wire that runs from the large post on your starter solenoid. It should be connected with the red wire from your rectifier. That is the wiring for charging your battery. Nothing else should be connected to it.

ok to clear things up, this engine has positive and negative 6 gage wires connected to battery. the five wires i have consists of red/violet (B+) ,white(start) ,black (ground) ,black/yellow(kill), voilet/white (chock/acc.)
and it just starts and runs by touching the red/violet with the white, and kills the engine by touching the black with the black/yellow. and there is no ignition on wire for this engine to work. once it starts cranking the magneto suplies the power am i on the right track?

 

[ezeke]

Re: how to start without start switch?

The battery negative (ground) cable is bolted to the engine block.

The positive battery cable is bolted to the large post on the solenoid.

If you take a separate wire and clamp it to the large post (6), you can then use the wire to apply positive voltage to the small post (3). That will activate the solenoid and allow the full battery power to reach the starter.

You can start the motor with no battery and it will run until the fuel is gone.

The black and yellow kill wire simply grounds the powerpack, stopping the spark and instantly stopping the engine.