The spring broke on the shift lever and I replaced it, now it stalls when I put it in reverse

Hi,
Need more than just 760 since just the most superficial searches yielded 4 possibilities. Try the numbers under the seat beginning with 13.
Peace,
Clarke

Hi, the number is 13A3761G500, thanks

Hi,
Did find a breakdown for 13A3761G700 which should be the same since only the vendor number changed. It is a pdf for easy printing. See at:
http://www.outdoordistributors.com/pdf/MTD/MTD-13A3761G700_(2005).pdf
And try to pick out the spring.
Does sound to me as if you attached the reverse safety lockout for reverse(yellow wire.)
Peace,
Clarke