stihl 025 piston size

[chris ham]

I disassembled this saw today as I could not get it to run.The piston measures 41.90 mm .I assume this would require the 42 mm piston and not the 42.5 am I correct.I called sthil and technical support .They informed me all 025s use the 42.5 mm piston.I do not think this is correct.

 

[HarleyT]

Here is the bulletin.

 

[chris ham]

My saw has a sticker which reads /stihl Andreas 1993 /It is located on the anti kickback clutch locking lever on top of saw .Is this the approximate date of manufactor

 

[HarleyT]

Is the sticker under the trigger still there?

 

[chris ham]

there is a short sticker has 311Y on it not the long sticker like on most of my other saws.The cylinder also has 93 stamped on it on the flywheel side.

 

[chris ham]

By the way you were right about contacting stihl technical support.They are about useless.