Sluggish 9.5 Johnson

[dman24]

I bought my first boat about 2 weeks ago. Its a 13.5 ft v hull and it came with a 9.5hp johnson. The guy I bought it from told me it was a two stroke, so I used a 24:1 mixture of outboard two stroke oil with high test gas. I had it on a local river last Thursday and it ran like a top. Saturday I took it to the lake and I couldn't close the choke to run it. If I had the choke about half open I could run it, but then it would get sluggish for a second and then go again. If I opened the choke it would idle down to almost cutting off and not rev. Any help or input is appreciated. I have no experience with outboards but am pretty good at working on most other engines.

 

[acwd]

I got one of those outboards. Sounds like you need to clean the carb. And the gas/oil mix is 50:1. They quit using 24:1 in the early 60s like 60 or 61.

Steve

 

[JMichael]

If it's running better with the choke on or partially on, it sounds like you have a fuel feed issue. Air leaks in the fuel line are the most common from what I've seen but it could be some trash in the carb.

 

[cajuncook1]

Hey buddy,

Read through the link supplied below, it should answer a lot of your questions.

https://www.tinboats.net/forum/viewtopic.php?f=4&t=21217

 

[dman24]

Thanks for the replies everyone. I will check my fuel lines again and clean the carb and adjust as needed. I am confused why it was perfect one day then two days later wanted to act up. Hopefully the weather will be nice next weekend and I can put my boat in the water again. Probably do the motor work Friday and fish Saturday. I have to fix the pull rope as well. It doesn't stay on so I have to remove the cover and wrap it everytime I need to move. Its a pain but it works. Thanks again for the help and I'm sure I will probably need more as I get into modding my boat this winter.