Need help identifying motor

[Java_guy23]

My motor title says 1961, my tag with serial# (2361031) and model# (RDS-25D) dont seem to match up with the year when im trying to look up info and parts... The model# above for 40hp always brings me to 1963. Please help me know what i have so i can get this motor running!

 

[racerone]

It is a 1963 model.-----Powerhead has been replaced with the Evinrude equivalent as it is a grey paint.----A very good , simple , easy to maintain motor.

 

[Java_guy23]

Thanks for the help! I have a couple more questions if you have the time and knowledge to answer i would appreciate the help im going to hopefully post a short video it would make it easier to explain for me

 

[racerone]

Know those motors inside and out.-----No manual required for me.

 

[Java_guy23]

https://youtu.be/wkJj2xxrdR8

Here is the link to the video i just made check it out and get back to me when you can

 

[racerone]

There is a location for a belt driven generator and the wires for it.were already in every motor that left the factory.----Do you have the junction box and wiring that mount INSIDE the boat ?

 

[Java_guy23]

You'll have to bear with me as this is the only boat I've ever messed with. Where do i look for that and is it necessary to run the boat?

 

[racerone]

Often times folks buy a motor that is incomplete !-----You need to find a junction box or learn to do the wiring modifications to eliminate the need for that junction box.

 

[Java_guy23]

Where would the junction box be located? And is the junction box for the generator or because it doesnt have it?

 

[racerone]

The generator was an optional item.-----The junction box was mounted INSIDE the boat on the transom.------A junction box has electric bits and plugs to connect motor to the battery and ignition switch etc.------Motors with a generator had a different cover for the junction box and voltage regulator was in there.-------=Do a complete evaluation of this motor before spending a lot of coins.

 

[Java_guy23]

Ok on the eval what are some things i need to check and go over?

 

[racerone]

Check a manual.------Buy a repair manual if you do not have one.------Study the basic operation of a 2 stroke ( mix oil with gas ) motor.----Study the operation of the magneto under the flywheel.

 

[F_R]

Why are you concerning yourself with an accessory generator kit? It is not necessary, and most of those motors do not have one.

EDIT: Oh, I just watched your video and understand the question about a gen. But you still don't need one.

 

[Java_guy23]

I didnt think i did thanks for confirming. The guys i got the boat and motor from are reliable for what thats worth but mainly im looking for a good start first try after a few years sitting and i dont have the ownwers manual and am trying to avoid buying. Figured id clean the carb look over fuel pump and change gear oil. Any other suggestions welcome i really appreciate all the help so far

 

[racerone]

Have you looked inside the boat for the junction box , yes or no ?-----Have you found the junction box ?-----Do you have the ignition switch for this motor ?

 

[steven0]

With this motor model, I found it Johnson 40 HP 1963 motor.

 

[lindy46]

Check compression - should run 110+PSI and even across both cylinders. Check for spark using an open air spark tester available at any auto parts store for about $10. Spark should jump at least 1/4" gap with a snappy blue white spark. If you have good compression and spark, then invest in a carb kit and definitely replace the water pump impeller before starting. Check for water in the gearcase. Once this is all done, then you can try firing her up.