I have a 21" mower with a 173cc Kohler engine. It power -propelled product # 7021. Do you have any tips for a tune-up. When the mower is cold, it acts like it has sticky valves. Once it warms up it seems to run ok. The plug is new and tight! Thanks

Asked by Doug on 08/09/2012 1  Answer

ManualsOnline posted an answer 12 years, 2 months ago

The ManualsOnline team has found the manual for this product! We hope it helps solve your problem. Get the Manual Here

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