Johnson TN 26

[ford981micah]

I can’t get my TN 26 to run below half throttle. It runs great at full throttle. Just replaced the impeller and the water seems hot coming out of the telltale. Also is there a trick to keeping the new starter rope from pulling out of the sheve.

[crosbyman]

see page 93 -94 in the TN carb adjustments in the johnson bible clean all passages and the little screen

http://162.144.28.33/lib/johnson/manual … .html#/100

Joining AOMCI has priviledges 🙂

[Steve A W]

Here’s a website that might be of some help.
http://pochefamily.org/outboard/
Good luck with your motor,

Steve A W

Member of the MOB chapter.
I live in Northwest Indiana

[frankr]

The slow speed needle is very sensitive on those. How far to you have it open? 5/8 turn is about right.

[ford981micah]

It is open about a 1/2. Seems to be where it wants to run the best.

[ford981micah]

https://youtu.be/6m6FJnGJU4k

A video of it running after impeller change.

[steveh]

Have you checked the compression on the cylinders> Low compression will make it difficult to start and it won’t idle very well. It also seems to be running rich to me. Also, running these things in a barrel can make them choke on their own exhaust. You might try setting up a fan. Beyond that, these are well-made reliable motors. My go-to motor is my grandfather’s old TN-26. I love it!

Steve.

[ford981micah]

I have no problem starting it. I have some sea foam in the fuel and I have been able to get it to idle down 2 notches now. I am assuming dirt somewhere. Can I still get the leather washers from Lloyd?

[aquasonic]

Not sure if Lloyd is still selling the primer washers. All good advice on the previous posts. A compression test will give you some valuable information, as these rotary valve motors are very sensitive to low compression. They just won’t idle well.

A complete carburetor cleaning and rebuild as described on the pochefamily website would be a wonderful thing. In the meantime, take the check valve out, carefully remove the screen, and soak both in carb cleaner or acetone. The tiny disc inside must be free, or the motor will not idle. The pochefamily website describes a test to see if the check valve is working properly.

[fisherman6]

Last I knew Lloyd was still selling the leather primer washers.
-Ben

OldJohnnyRude on YouTube

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