E-TEC Wiring Question

[muskytroller]

I am putting a Suzuki tiller handle onto a 75HP E-TEC. I know what the Suzuki wires do, but I cannot find out what the corresponding E-TEC wires are.

The Suzuki has 5 control wires and the E-TEC has 6 wires.
I need to connect the 5 Suzuki wirers to the 6 E-TEC control plug.

Here are the colour and purpose of the Suzuki wires.

Black - Ground
Green - Stop
White - Battery (power)
Gray - Ignition
Brown - Start

Here are the E-TEC control wirers

Red - Battery (power) ?
Purple - Ignition?
Purple/White strip?
Yellow - Start?
Black/White strip - Ground or Stop
Black/Green strip - Gound or Stop


Can the two purple wires be brought into 1?
Would black/green go to ground and black/white go to stop?

Thanks for any help

 

[Silvertip]

Re: E-TEC Wiring Question

And who told you this system would work? Did you take into account that the throw on the Suzy control box may not be the same as the throw requirements on the E-tec. The ignition switch in that box may be for a Suzy 4-stroke not an E-tec two-stroke! Throw is not typically adjustable. Only cable adjustments are possible. Just throwing a few caviats at you. Be very careful with this conversion. Marine electronics are expensive. Screw up an ECU you will quickly learn that B-O-A-T = Break Out Another Thousand.

 

[muskytroller]

Re: E-TEC Wiring Question

It is a Suzuki tiller handle that we are attaching. Tim Mertan of Engine Steer has done this conversion in the past. He had a mechanic at a local delership attach the cables and wirers. Unfortuantly that mechanic has moved on. The Suzuki manual has a colour code for every wire. I have looked at the E-TEC manual and it shows the wirers but no code as to what function they perform.

I know now of at least 2 E-TEC motors that are useing Suzuki tiller handles.

 

[seahorse5]

Re: E-TEC Wiring Question

The E-TEC service manuals have a beautiful color diagram of the wiring.

 

[muskytroller]

Re: E-TEC Wiring Question

Yes they do.
But when we picked up our E-TEC we looked at the shop manual and it had colour diagrams but no indicaction of what each wire function was.
Maybe we missed something.
I'm wishing to find someone with E-TEC wiring understanding or a shop manual that may have the wiring purposes and can let me know.

I know that iboats has a great body of knowlege and again thanks.

 

[seahorse5]

Re: E-TEC Wiring Question

 

[ondarvr]

Re: E-TEC Wiring Question

Or.. if you have a problem connecting the wires, just mount the key and other stuff in a panel on the transom in front of the motor. When I changed my 90hp Evinrude over to a tiller there were no handles listed to fit it, but almost any tiller handle can be bolted on, you just need to be able get a throttle cable that will work. I had to make a small adaptor plate for the cable and it works great. I just mounted the key on a small panel with the tac and fuel gauge instead putting it in the handle, it really made no difference and was much easier.

 

[muskytroller]

Re: E-TEC Wiring Question

Thank-you Seahorse
Your diagram labels a 5 wire plug and we have a 6 wire plug. I figure that:

Red - Hot (Battery)
Yellow - Start
Purple - Switched Power (On)
Black/White - Ground
Black/Green - Stop

Still not sure as to the purpose of the purple/white wire, could it be for the neutral safety switch?

Thanks

 

[tx1961whaler]

Re: E-TEC Wiring Question

Choke.
Look carefully on the diagram. The label on the first diagram lists 6 connections, even though it shows 5 wires.
The key switch diagram shows 6 connections, with the purple/white connected to the C terminal

 

[seahorse5]

Re: E-TEC Wiring Question

Thank-you Seahorse
Your diagram labels a 5 wire plug and we have a 6 wire plug. I figure that:


Still not sure as to the purpose of the purple/white wire, could it be for the neutral safety switch?

Thanks

It is a 6 wire Deutsch connector and the purple-white wire is the "choke" or primer wire which is not needed on an E-TEC or any other injected motor.

 

[muskytroller]

Re: E-TEC Wiring Question

Seahorse

My cocern is that your diagram does not match the colour scheme coming from both the motor and wiring harness.
No - Black/White or Black/green

Also why run a Purple/White from a E-TEC with no purpose?
Cheaper to leave pin blank

 

[Anchor Management 1]

Re: E-TEC Wiring Question

 

[seahorse5]

Re: E-TEC Wiring Question

No - Black/White or Black/green

Black-white is the same as a solid black - a ground wire

Also why run a Purple/White from a E-TEC with no purpose?

Reread my previous post. Dont forget that many of these items have to fit other models also.

 

[muskytroller]

Re: E-TEC Wiring Question

Seahorse

I agree that the wiring harness has to be universal.
But why would Evinrude run a (Purple/White) wire inside the E-TEC that has no purpose? Why waste wire when the engine 6 pin plug only needs 5 wires?

 

[seahorse5]

Re: E-TEC Wiring Question

There is no purple-white "choke" wire inside the E-TEC. There is no purple-white "choke" wire inside the E-TEC boat wiring harness from the engine to the key switch with the Can-buss system, only the standard MWS harness has it.

the key switch has the purple-white wire because it is a universal fit item for all years and models of motors since 1996, just like the universal MWS harness.

Look behind your dashboard of your vehicle and chances are there are multiple unused wires and connectors which are for various accessories used on different models or option packages.

 

[muskytroller]

Re: E-TEC Wiring Question

Seahores

We both agree that an E-TEC does not have a choke.
Your point that a universal harness is used from the engine explains the Purple/White wire I see.
Thank-you Seahorse for your help and time and to the others for their help also.
We hope to have everything together for the cottage in a couple of weeks.

 

[Silvertip]

Re: E-TEC Wiring Question

Geez -- ask Evinrude, we didn't design the thing. Just so you know, the harness may be used on another engine or series of engines that needed the wire. When I was dealing with part number assignment, it cost the company about $10,000 to add a new part number to its data base. That covered the preparation of the drawing of the part, the bill of material for the part, and the inspection and production documents. So why not make one part with one extra wire that can be used in several applications rather than two separate parts that then creates additional production management issues. You can buy a lot of wire for $10,000. If you snoop around the wiring in your car you will likely find all sorts of wires that are not being used. Instead of matching colors, why aren't you matching functions. Those are indicated on the cable diagram. Your switch has letters A, B, C, S, M and possibly another M. For an E-tec you don't need the "C" (choke/priimer) connection.