Craftman 26 HP Electric Start 6 Speed Transaxle Model 917.25024. my problem is very simular first mow of the season. mowed about 15 ft. and stopped to check how it was mowing and when i went to let the clutch out nothing there. the difference that I can see is the engine drive pully is not moving. Nothing with the Clutch or gears.Drive belt seems tight. cleaned the clutch plate as my book says is one step.