Powerhead swap

[Harv maloy]

Hello I am new to the boating world. Especially the rebuilding boat world. As such I have jumped in head first with a 1968 falcon restore. The boat came with a johnson seahorse 40 hp motor model rkl-30-c that had electric issues. I replaced coils condensers n points and sent the generator and voltage regulator off to be rebuilt. While they were gone I took a chance to test run the motor in the lake it ran well for about an hour. I shut it down to drift for a bit n when I went to start it back up it sheared the key in the fly wheel and long story short tore itself to shreds.

Thas the story that leads us to this post. After destroying the johnson 68 powerhead I found a 62 evenrude lark 4 outboard with a good powerhead. the lower is a long shaft and pretty blown in the evenrude. The lower in the 68 johnson is totally rebuilt and clean. The blocks are the same I have already pulled the powerheads and bolted the evenrude block to the johnson frame it dropped right in without a problem.

The problem I am facing and am hoping to get some help with is wiring. I have very little motor expirience and even less when it comes to wiring plus these are the first outboards I have ever worked on. I have wiring diagrams for bouth motors but they don't explain where everything is located on the motors. The main problem I am having is identifying cretin parts like which is the cut out switch, and which is the kill switch. But mainly what is getting me lost is in bouth diagrams there appears to be 2 buss bars where a lot of wires tie in together and switch colors. Unfortunately I cannot locate these buss bars on iether motor or how these wires are supposed to come together. Also the starter soliniod for the 68 johnson is locate in the frame for the exhaust housing, on the evenrude it hase to be located on the motor because there are no electrical components in the housing for the evenrude. And I can't find the starter solenoid on the evenrude.

I'm sure the info I have left is pretty vague if there is any more info needed please let me know. I can also post pics

 

[racerone]

The solenoid on the Evinrude was in a seperate junction box that mounted inside the boat.-------Most folks ( sellers and buyers ) do not relize how important the proper controls are.

 

[Harv maloy]

Thank you so seeing as how the blocks are the same and I am using the starter off the johnson witch also bolted right in to the evenrude and is still wired into the johnson starter should I be ok using the johnson starter solenoid?

 

[Harv maloy]

Thank you for the reply. I am using the starter off the johnson which is still wired into the johnsons starter solenoid. The starter on the evenrude was going bad which led to this decision. The johnson starter bolted up without a problem. So will it be ok to use the johnson starter, and starter solenoid on the evenrude motor?

 

[boobie]

Yes..........

 

[Harv maloy]

Thank you. I have been going through and labeling the wires as I can figure them out I have everything on the block pretty well sorted but can't locate the wire for the car boat or solenoid on the evenrude motor. On the johnson it is right on the bottom front of the carb on the left side lookING at the front. On the evenrude there are fuel lines comming out of the carb assembly but no wires. Any idea where that wire might be on the evenrude motor it's the only one I can't find on the motor. Also I think what I am confusing for buss bars in the diagrams are actually located forward in the boat with the controll box n gauges but that part is very confusing to me. I have tryed to post pics of the motor but it keeps saying the date is wrong on the file. When I can figure that out I'll post pics

 

[Harv maloy]

No Title

These are the wiring diagrams I have to go off of. You can see in the middle of bouth picks you can see what looks like 2 buss bars with a lot of wires going to them. It's pretty obvious these are not actually buss bars at least not in the motor anyway. Can you tell me what they are, or what they represent?

 

[racerone]

Johnson and Evinrude parts may be a different colour.----But came out of the same crate in the factory.---Same part numbers.

 

[F_R]

No Title

So which motor are you trying to wind up with when you are done? A '68? Is the wiring in the boat a '68 version? Here is the '68 diagram. No junction box that year.

 

[Chinewalker]

If this were my project, I would have stripped the earlier powerhead to the short block and bolted on all of the Johnson Electrical stuff so you weren't mixing and matching anything and trying to mate up '62 gizmos with '68 gizmos.

 

[TN-25]

I think Chinewalker makes a good point.

I had to respond when I saw your boat and motor combo. From the '68 Starcraft brochure:

 

[racerone]

Did the 62 have a hot water choke and the 68 has a hot air choke with a solenoid ??----Check that out.