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D140 idle issue

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d140
7K views 5 replies 3 participants last post by  MsDaffy 
#1 ·
Hi I have a used d140 I purchased . Did a complete tune up spark plugs , all filters , oil change .. mower works fine until it warms up then idles super high and u can’t control it with the throttle . Any idea what might cause this? When the pto is engaged the throttle works to control it up and down but if u r just running the mower the throttle doesn’t work ... any help would be appreciated!!
 
#4 ·
Sounds like a governor or governor linkage problem. Usually the throttle cable doesn't really go straight to the carb. The throttle being controlled by the governor linkages.
 
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