Hi BB
Did thay roll tho or did they sit stationary and the chain just wear in one spot until next service
I dont really but to allow for chain cover clearance it is a new chain and I might have missed counter the number of links
The originals were just bolted stationary and as you suggested and rotated at service time.
I must admit if I could find some round ones I would fit them onto my series one machines opposed to modifying the series two units to fit.
OK I wasn't aware that you've changed chains, thus that explains it.
Cheers,
BB.