How do I lower the idle speed on a Honda GX160 engine?

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  #1  
Old 12-19-08, 03:41 PM
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How do I lower the idle speed on a Honda GX160 engine?

I've built a winch using a 5.5HP Honda GX160 engine. It works fine, but I need to get the idle speed lower for spooling up the line when I'm done.

There's an electric clutch mounted on the engine, and it makes a pretty good flywheel. I can get the engine to idle slower by moving the governor arm under the gas tank to the right, and it runs smoothly at the speed I want. However, I don't see any way to adjust the idle speed so I don't have to hold the arm.

The parts look like this:


Is there any way to adjust it to get a lower idle speed?

Roger
 

Last edited by rogerflies; 12-19-08 at 04:01 PM.
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  #2  
Old 12-19-08, 05:43 PM
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if i am reading the drawing correctly either 23 or 25 is the idle adjust screw, ccw to lower cw to raise.
how about posting photos of the winch sounds interesting.

Murphy was an optimist
 
  #3  
Old 12-20-08, 12:02 AM
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Those screws set the max speed by limiting how far the throttle lever will move to the left.

When I move the throttle lever all the way to the right, all the linkages and springs are slack, but the arm on the carburetor butterfly isn't against the throttle stop screw. I tried adjusting the stop screw as shown on page 29 of the owner's manual, but that didn't make any difference in the idle speed.
http://www.honda-engines.com/Engines...s/31ZH7600.pdf

I'll take a picture in the morning and post it.

Roger
 
  #4  
Old 12-20-08, 05:34 AM
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Here's the picture:


It's a smaller and much quieter version of this one:


Both are used for launching radio-controlled sailplanes.

Roger
 
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