Walk behind Yard-Man Lawn Mower Hard to Pull Backwards

jemret

Member
Joined
May 8, 2012
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I have a 14 year old Yard-Man 21" Self-Propelled mower, Model #12A-979L401. It is a rear wheeled self propelled mower. It pulls forward okay but when I pull it backwards the drive wheels lock up and actually slide as I pull it backwards. I have discovered that if I begin to pull it backwards very slowly the wheels will not lock up completely but still they do not roll freely without some extra effort. It appears the rear wheels are staying partially engaged with the transmission and therefore it takes more effort to pull it backwards. It seems to me the rear wheels should disengage and free wheel much like the front wheels when pulling the mower backwards. Any suggestions and/or comments appreciated.
 

mechanic mark

Lawn Pro
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Jul 15, 2013
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Post year, model & serial numbers as well as engine manufacturer & all numbers from engine: example for B&S engine, model xxxxxx, type xxxx, code xx.
 
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