68' johnson 20hp. Throttle doesnt open all the way up...

bktheking

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Re: 68' johnson 20hp. Throttle doesnt open all the way up...

Can you take a vid??
 

Roy Wirebaugh

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Re: 68' johnson 20hp. Throttle doesnt open all the way up...

I will try to post a video of it when I get home from work today.
 

bonz_d

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Re: 68' johnson 20hp. Throttle doesnt open all the way up...

Just out of curiostiy try disconnecting the linkage to the carb and see if the follower will retract to where it should be.
 

Roy Wirebaugh

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Re: 68' johnson 20hp. Throttle doesnt open all the way up...

I disconnected it and the roller went all the way back. I can manualy open it up to the lockout and its fine. Its when I try to ese the tiller that i cant get it to open up. I'm running out of teeth on the gear before it gets to full throttle.
 

Roy Wirebaugh

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Re: 68' johnson 20hp. Throttle doesnt open all the way up...

Here are some pictures. These are without any linkages hooked up....
 

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bonz_d

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Re: 68' johnson 20hp. Throttle doesnt open all the way up...

I'm running out of teeth on the gear before it gets to full throttle.

To me that's saying someone had the tiller apart and didn't get it back together correctly.

Pull the tiller off. Try and set everything were it should be when it's to the farthest off position, carb, magneto plate, connecting lever. Then try and reset the tiller to the correct position.

Hope this helps and that I was able to explane it correctly.
 

bonz_d

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Re: 68' johnson 20hp. Throttle doesnt open all the way up...

Here are some pictures. These are without any linkages hooked up....

Those gears in the last picture should not run out of teeth until it has reached wide open throttle.
 

bktheking

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Re: 68' johnson 20hp. Throttle doesnt open all the way up...

Nope, it's been apart if it runs out, remove the tiller handle and reset the mesh, then it should be good to go.
 

Roy Wirebaugh

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Re: 68' johnson 20hp. Throttle doesnt open all the way up...

I just noticed that the arm that goes from the gear up to the top has a twist in it. It looks like if I twist it back to straight it would open the throttle all the way. Can I do this or is it supposed to have the twist?...
 

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bktheking

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Re: 68' johnson 20hp. Throttle doesnt open all the way up...

I don't remember them having a twist, generally straight.
 

Roy Wirebaugh

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Re: 68' johnson 20hp. Throttle doesnt open all the way up...

I tried to reset and it didnt matter. Thats when I noticed the twist. My 10 horse is traight so I figured this was supposed to be also.
 

bonz_d

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Re: 68' johnson 20hp. Throttle doesnt open all the way up...

That is correct. Should be straight. But still that picture doesn't look as though it's twisted enough to put the timing off that much, maybe a 1/2 a tooth. But what you're describing sounds like it's off by more than a couple teeth.
 

Roy Wirebaugh

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Re: 68' johnson 20hp. Throttle doesnt open all the way up...

Everything is good now. I straightened the twist out and it opens up all the way. I did have to reset the gears but I was able to do so with the arm straightened. The twist was worse than it looked in the picture. Thanks for all the help folks......Royy
 

bktheking

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Re: 68' johnson 20hp. Throttle doesnt open all the way up...

Everything is good now. I straightened the twist out and it opens up all the way. I did have to reset the gears but I was able to do so with the arm straightened. The twist was worse than it looked in the picture. Thanks for all the help folks......Royy

Glad you solved it, back to my beer :D
 

bonz_d

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Re: 68' johnson 20hp. Throttle doesnt open all the way up...

Good to hear you got it worked out. Now go have fun!
 
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