My Murray hydrostatic automatic mower works fine except sometime when i crank it up and step on the pedal it won't move. In the past, I would keep rocking the mower or jigling the up/down latch and eventually the drive belt would kick in. The mower (42 in deck) has been sitting up now for about 4 months. Now it refuses to engage the drive belt. Can you advise???? Make = Murray, Model 287707, type = 0225 01,
Briggs & Stratton Engine.

Lee jenkins, March 2007

Check the valve rod below the seat back to see the it is fully in. If it's bounced even a little out the hydro will not engage.

Rick, March 2007