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Go Back   Only Cub Cadets > Cub Cadets > Cub Cadet Engines > Kohler Engines
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  #1  
Old 08-15-2018, 01:06 PM
dbuck dbuck is offline
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Smile Throttle stop
Anyone know anything about a throttle stop on the side of the carb. on a CH18S Kolher. I was told this by a long time CC mechanic, but can not remember what he said it affected as far as engine speed.
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  #2  
Old 08-15-2018, 01:39 PM
J-Mech J-Mech is offline
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It does not affect engine speed, only max throttle opening, thus a power limit.
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  #3  
Old 08-15-2018, 03:23 PM
TNTs CC TNTs CC is offline
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Originally Posted by J-Mech View Post
It does not affect engine speed, only max throttle opening, this a power limit.
I thought I read that all Kohler did was to readjusted that screw to turn the 18hp engine into a 20hp version.

Any insight on that?
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  #4  
Old 08-15-2018, 03:53 PM
J-Mech J-Mech is offline
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Originally Posted by TNTs CC View Post
I thought I read that all Kohler did was to readjusted that screw to turn the 18hp engine into a 20hp version.

Any insight on that?
I can't remember if it's a stop, or a screw.... but yes, that is correct. That is the only difference between a CH18 and a CH20.
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  #5  
Old 08-15-2018, 07:16 PM
mortten mortten is offline
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Sam posted a picture of that screw some time back
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  #6  
Old 08-16-2018, 05:24 AM
bugeye bugeye is offline
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The stop is a screw on the left side of the carburetor. The air cleaner base must be removed to access. Round extended head. Move the engine speed lever to the wide open position and observe the throttle plate. If installed, the stop prevents the throttle plate from being wide open. Just remove the screw to allow the throttle plate to open.
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  #7  
Old 08-16-2018, 03:02 PM
dbuck dbuck is offline
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Thank you everyone for your replies. I will go down to the shop later an check on making a CH18 into a CH20, using the throrrle stop.
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  #8  
Old 08-20-2018, 12:55 PM
dbuck dbuck is offline
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Finally got around to checking the throttle stop on the CH18. It is not on the carb, their is a self tapping screw in the throttle control plate, that limits the throttle plate from being wide open. This screw comes up from the bottom, therefore you would have to remove the control plate to remove this screw. As my Ch18 in my 1864 has pently of power, it will stay as is.
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  #9  
Old 08-20-2018, 02:02 PM
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Sam Mac Sam Mac is offline
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This is how it was on my engine.
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File Type: jpg throttle stop.jpg (19.5 KB, 79 views)
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Old 08-21-2018, 08:54 AM
mickb72 mickb72 is offline
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This is how it was on my engine.
Yep and it's gone on mine now. Still need to reset the governor though. Mike
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