1965 18 HP Johnson not getting full throttle

[dpostman21]

My 1965 18 HP Johnson is not getting full throttle, it appears that the square tube is spinning inside the throttle lever. See in pictures

https://goo.gl/photos/XdSSWRMzfV5TmLeG6 shows the slot which appears to move about 30% before actually turning the rod that foes to the top of the motor.

https://goo.gl/photos/aJy4tSUvJ1BPvYmh8 This is as far as it goes right now, seems like it should go farther???


https://drive.google.com/open?id=0B__F02102-ELblJhRHJybHFtNEk see notes on picture.


Any help as always is greatly appreciated.

 

[racerone]

There is a plastic pin in there that may be broken.---At one time they were made of brass.

 

[dpostman21]

I seen a little plastic (blue in color) on the shaft of the piece that runs up to the top of the motor. Sounds like a good possibility.

THANKS!!!

 

[lindy46]

Part number is 329197

 

[dpostman21]

Thanks!! Do I have to pull flywheel off to replace? Just at a glance looks like i will have to take quite a bit apart to get to it. It broke flush so i fogured I would have to take it all aprt to remove broken piece.

Thanks for the help. Really appreciate the insight.

 

[HighTrim]

Yes, I can see your key is sheared off in there.

Very easy fix.

 

[racerone]

??--Did not look at any pictures.---You remove the clip up top.---Remove 2 small screws and the tower shaft is out.

 

[dpostman21]

Thanks HighTrim & racerone.

This is a huge help.

 

[dpostman21]

Took it apart and indeed that plastic piece was broke off. Going to order one up. Thanks for the help!!