I have recently noticed I am losing ground speed on my riding mower. I changed the drive belt. Didn't seem to help much. It's really slow in reverse. Barely moves. Could it be the spring on the idler puller for the drive belt?
***"craftsman 48" automatic loss of speed....I am losing ground speed on my riding mower."***
Too vague description of your tractor for anyone to help you. Please specify which model of Craftsman product you have. The Sears/Craftsman Model number would help. Craftsman 48" automatic riding mower tells us that you have a riding mower.