Johnson HD 25???

[phatnomad]

I have a Johnson Seahorse HD 25. It has been 3 or 4 years since I have started it. What oil to gas ratio do I use for this and what kind of oil? Where do the adjustments need to be to start and run this motor? Where can I get an owners manual for this? It is missing the gas cap, where can I get one? How can I find out the year model and HP for this motor? Thanks for the help.

 

[HighTrim]

Re: Johnson HD 25???

If you post the serial number, we can get you an exact year. The HD25 was made for a few years, from '46 to '50, but are all 2.5hp

Mix 16:1 regular 87 octane fuel: TCW3 outboard oil

Post any wanted parts at aomci.org in the webvertize section.

Here are the tuning instructions

 

[phatnomad]

Re: Johnson HD 25???

The serial number is 555576. The tuning instructions and oil/fuel ratio is exactly what I needed. Thanks for the help.

 

[HighTrim]

Re: Johnson HD 25???

It is a 1947 then.