2000 mtd 42" cut rider will not go into neutral
	
	
		when I went and picked this mower up (it had been sitting in a guy's backyard for 2-2 1/2 years), it went into neutral fine.  We were able to push it onto the trailer with no problem.  But, when I got to my house, and went to back the mower off the trailer, I could not get the thing to go into neutral at all.  The transmission is a one speed transmission I believe.  The mower has mtd's shift-on-the-go speed system with variable speed pulleys.  Any help would be appreciated.  Thanks