Johnson 5.5 hp 1965, 1966, or 1967

[wres112ad]

correction its a 55, 56, or 57 Sea King Johnson 5.5hp


I just recently bought a Johnson 5.5hp Sea King i only have one problem with the motor it doesnt idle very good, i have ran sea foam through it, mixed my gas 50:1 ratio i dont know whats wrong with it? it purrs like a kitten running wide open but its a different story trolling! please help in anyway you can Thanks!

 

[CATransplant]

Re: Johnson 5.5 hp 1965, 1966, or 1967

First off, stop using 50:1 in that outboard. It's designed for 24:1, and has plain bearings.

Second, you need to clean your carburetor and install a carb kit. Poor idling is almost always a problem of a dirty carb.

Finally, search here for carburetor adjustment, and follow the instructions, once you get your carb clean.

 

[wres112ad]

Re: Johnson 5.5 hp 1965, 1966, or 1967

thanks for the help! the info i got was from the guy i bought the outboard from!!!! im not happy with him right now!! again thank you.

 

[F_R]

Re: Johnson 5.5 hp 1965, 1966, or 1967

While it was made by Gale Products Division of OMC, it is related to a Johnson, but not 100% the same as a Johnson. Some parts are, some are not.
Have you tried adjusting the slow speed carb needle? Could be all it needs.

 

[wres112ad]

Re: Johnson 5.5 hp 1965, 1966, or 1967

Yes i have makes it run a little bit better but it still has trouble running at idle.

 

[JB]

Re: Johnson 5.5 hp 1965, 1966, or 1967

We need a model number. Is it a Johnson or is it a Gale-made Sea King?

 

[wres112ad]

Re: Johnson 5.5 hp 1965, 1966, or 1967

All i can read on the tag is CD-1 i cant read the last number!

 

[CATransplant]

Re: Johnson 5.5 hp 1965, 1966, or 1967

If it's CD-1?, then it's a Johnson, which would make it a Seahorse, not a Sea King. It still needs a carb cleaning. Some little bit of gummy crud is partially blocking the low-speed circuit. Since you already tried adjusting the low speed jet, it's time to clean and kit that carb.

It's not hard to do, and your little tiddler will love you for it.

 

[JB]

Re: Johnson 5.5 hp 1965, 1966, or 1967

That could be anything from a 1954 CD-10 to a 1962 CD-19.

All of those call for a 24:1 fuel mix.

 

[Chinewalker]

Re: Johnson 5.5 hp 1965, 1966, or 1967

See if you can match the cowling/paint scheme to one of the pictures at this site:
http://www.old-omc.de/
- Scott

 

[OptsyEagle]

Re: Johnson 5.5 hp 1965, 1966, or 1967

Also, I think the 1958 and older Johnson 5.5Hp used a two line pressurized gas tank. Now quite a few of these models have been manually converted to a single line hose by adding a fuel pump to the motor, but if yours has the two line version, you have narrowed it down to CD-10 to CD-15 or 1954 to 1958.

 

[iwombat]

Re: Johnson 5.5 hp 1965, 1966, or 1967

Poor idling can also be caused by bad compression. Given that the previous owner was using 50:1 mix I think I'd be checking into that right away. Good to eliminate the scary stuff first IMHO.

 

[wres112ad]

Re: Johnson 5.5 hp 1965, 1966, or 1967

thanks for all the help you guys are great! ill let you know what i find out.