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.....

Refresh my memory on the 2.3 bore please.   I just measured the yellow one that we are thinking 2.1 by IPL but it has the bridged cylinder like a 2.3.
Through the exhaust port and I use soft solder to mark.  37mm is what I came up with as close as I can get it.   Using converstion chart 1.45669"   so just guessing this will come back to bridged 2.1ci then?