While you wait for answers, we may have found some information which could help you.
Click here for Sears Model NumberProblems starting Lawn tractor (Sears Craftman)?
Sears 30" rear engine rider won't turn off with the starter key?
Screaming tiller?
My Riding mower is stalling out any ideas of what is wrong?
What is the problem with my Sears Garden Tractor?
Need to stop carb leak on old Sears Model 917298131 tiller?