1957 Big Twin 35hp and 61 Johnson Seahorse 10hp - Where to start?

[cocaptain5280]

I want to learn how to fix and rebuild vintage motors. I have two motors that both run, but not perfect...

1. 1957 Evinrude Big Twin 35hp (with electric start)
2. 1961 Johnson Seahorse 10hp (pull start)

Thanks to LeeRoy’s Ramblings (online vintage motor knowledge base) and YouTube, I know how to replace a water pump and impeller, and I know sort of know how to change lower unit oil, but that’s really it. I also understand a lot of the part names from reviewing outboard diagrams.

My goal is to learn how to do repairs and maintenance on each of these motors and other vintage motors that I acquire in the future (I love classic boats). The problem is that I am overwhelmed by the amount of information online, and I want advice on how to learn these skills.

What is the best way to approach this endeavor?

For some reason I want to start with the 1961 10hp Johnson Seahorse because it is smaller and less intimidating than my 1957 35hp Evinrude Big Twin.

Thanks!

 

[geoffwga1]

I would say the best thing you can do would be to get the service manuals for your motors,they will tell you all you need to know and if you need further help it is available here.You can get the books from Ken Cook at Outboardbooks.com.

 

[Crosbyman]

read and understand this book

162.144.28.33/lib/johnson/manuals/1922-1964johnson.html#/0

 

[oldboat1]

Sounds like a good idea to start with the 10, as you indicate. Both nice motors -- good to have (or locate) the stern box and wire harness for the Big Twin, if you don't already have it.