Old Lawn Boy Governor Problem

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  #1  
Old 10-15-09, 04:39 PM
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Join Date: Oct 2009
Location: Ontario, Canada
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Old Lawn Boy Governor Problem

In May 2004 Member ZoomZoom had a problem with an old Lawn Boy. He discovered broken Governor. He replaced Governor, mower would start but run only slowly. Moving throttle lever manually would not cause engine to speed up.

This is exactly my problem.

I have checked exhaust ports - ok
Installed carb from good mower - no difference
Checked and rechecked governor install.

Could not find solution from original post by Zoomzoom.

If Zoomzoom reads this I would really appreciate the solution if it was ever discovered.
 
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  #2  
Old 10-15-09, 06:03 PM
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Join Date: Jun 2006
Location: St. Louis
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If you would post the model number and stuff it would help greatly. Have a good one. Geo
 
  #3  
Old 10-16-09, 05:46 AM
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Location: Ontario, Canada
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Old Lawn Boy Governor Problem - Model 7260G

Mower is a walk behind 21" Model 7260G

I believe this problem is actually unrelated to the Governor since it's operation is rpm driven, and engine will not react to manual throttle arm movement.

It is also not related to either carb or reed valve, since a known good assembly also has no effect. The exhaust ports are clear.

Something is preventing the engine from moving to high rpm thus bringing the governor into action.

Could there be a compression leak once the mower starts to run. If so, where would the most likely area be; and is there a method of temporarily "fixing it", to see if engine will pick up speed?
 
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