mine are sealedThat’s very easy. Remove the drive belt as per the instructions in your operator’s manual. There is a tool for this in your tool kit. Next, remove the driven clutch by removing the bolt being careful to keep all the washers in order. Now slide off the clutch and you will have access to the grease fittings. The chain case oil lubes the bearing on the chain case side.
All this is assuming they aren’t sealed bearings, and I can’t remember if they are or not.[/b]