Fix a Chain Oiler on a McCulloch Pro MAC 610.
What may have been the main thing that fixed the chain oiler was filling the chainsaw oil tank with MMO (Marvel Mystery Oil), doing some light cutting and then letting the chainsaw sit a couple of days. The MMO (Marvel Mystery Oil) may have dissolved some crude or a clog in the chainsaw oil pickup filter or in the chainsaw oiler itself or freed up the check ball in the chainsaw oiler. It may be a good idea to run a little MMO (Marvel Mystery Oil) in the oil tank on your chainsaw while doing some light cutting so as to keep the chainsaw oiler system clean of gunk.
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