OMC throttle (side mount concealed) issue?

clemhkg

Recruit
Joined
Jan 10, 2012
Messages
2
I have a 2001 Johnson 150HP mounted on my Glastron SX170. Runs beautifully except for the annoying throttle issue: for 90% of the throttle course the engine will stay in low revs. Medium to high revs are on the remaining 10% of the throttle course which means it is very difficult to adjust to medium speed. Boat will either fly or idle.
I noticed that on my shifter (OMC concealed side mount) there are two cables moving when the throttle is operated. One is moving from idle to max speed and another cable is only moving during those remaining 10% of the throttle movement.
Can this be my issue? Do I have a wrong throttle adjustment or is this absolutely normal and I have to look elsewhere to solve this?
Thanks,
Clem
 

Joe Reeves

Supreme Mariner
Joined
Feb 24, 2002
Messages
13,262
Re: OMC throttle (side mount concealed) issue?

Two cables..... One shift cable, one throttle cable.

Do you by any chance have the two cables connected backwards at the engine ie... shift cable connected to throttle linkage etc?
 

clemhkg

Recruit
Joined
Jan 10, 2012
Messages
2
Re: OMC throttle (side mount concealed) issue?

Solved. It was a faulty poulie on carb side.
Thanks.
Clem
 

Joe Reeves

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Feb 24, 2002
Messages
13,262
Re: OMC throttle (side mount concealed) issue?

Solved. It was a faulty poulie on carb side.Thanks.Clem

Perhaps I didn't go far enough in school. What does the above mean? The word "Poulie" does not turn up in my electronic dictionary.
 

boobie

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Nov 5, 2009
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20,826
Re: OMC throttle (side mount concealed) issue?

Me too?????????????
 

Joe Reeves

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Feb 24, 2002
Messages
13,262
Re: OMC throttle (side mount concealed) issue?

I just looked up "poulie" on Google. Apparently the word is French for "pulley". Still I have no idea what a pulley would have to do with the throttle/shift setup.

C'mon Clem.... explain what the problem was so that other boaters might benefit by the cure.
 

boobie

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Joined
Nov 5, 2009
Messages
20,826
Re: OMC throttle (side mount concealed) issue?

It might be the little roller on top of the mtr where you adjust the sync & link for the timing advance and ect ???
 
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