I have a chainsaw where the chain wants to not stay in the bottom of
the blade. There were some notches (2 sets) in the drive gear/sprocket
(clutch hub) so I replaced that. I figured once it moves over to the
outboard notch, the chain wouldn't stay in the blade.
Once a motorcycle chain stretches, it will wear out the sprockets
faster. The chainsaw chain stretches like crazy compared to a
motorcycle. The chain is driven differently on the chainsaw though.
So like on a motorcycle should the chain be replace when the sprocket
is
replaced?

The saw worked fine with the chain out of the blade. I do have a groove
in the plastic cover that holds down the blade.

Thanks,
Wayne D.