Chainsaw Repair

Just checked the yeller saw IPL.  Lists 530011244 for the cylinder.  That's the 1.438" cylinder for the 2.1ci saws.  Also lists 530023389 as the piston.  That's the 1.435" slug for the 2.1ci saws.   

Of course, the p/c could have been swapped some time in the last 30+ years or so.  Don't really matter.  I haven't been able to detect a difference in power between the 2.1 and the 2.3.  Maybe with identical chains on the same day in bigger wood with a timer buddy who's very consistent with a stopwatch.....