Pully and Belt Q

[Boney 0]

When I got my tractor it had the drive pully and belt for the rototiller on it and is very slow. Does anyone know the correct size of the drive pully and belt for a stock 725 ? thnx herm

[gregc 3]

The drive pulley should be 6.5" OD. The drive belt #154273 = 42.3" HB belt.