1968 Johnson Super Sea Horse RDS-22 carburetor issue

[jonstanton]

Hi Everyone,

Can anyone tell me why my carburetor is spitting out gas when hooked up to fuel tank and stops but continues running for a minute or so. The engine starts up immediately but then spits out gas again when hooked to tank. Is this a stuck float or simply another setting. It is a 1968 40hp Johnson RDS-22.

Thanks for any help with this!!!!!

Happy boating to all!

 

[1946Zephyr]

Re: 1968 Johnson Super Sea Horse RDS-22 carburetor issue

If it is infact an RDS-22, then it is a 1960 model. It probably still has those compression release valves on the heads? As far as your carb issue, that looks like a float problem to me. I just fixed that same issue last weekend on my RDS-21 On mine, I had to bend the tab to keep the float from dropping too far, because fuel was flowing out the front, when I primed it. Where the float attaches to the carb, you'll see a tab that goes straight up. Just take a screw driver and push that in, till you have just a small space there. This will allow to float to drop about 1/2" when the carb is dry of fuel.

 

[oldcatamount]

Re: 1968 Johnson Super Sea Horse RDS-22 carburetor issue

Sounds like the float is stuck or there's a piece of debris under the float valve keeping it from shutting down the fuel flow. The low speed needle valve should be open approximately one and a half turns.

 

[interalian]

You should start your own thread. But it does sound like your needle valve is sticking open.

 

[Silvertip]

And the needle, seat, and float are inside the carburetor. It needs to be disassembled to get at these parts. A service manual (not an operators manual) for your specific engine is your friend if you intend to work on this or any other engine yourself.