Stihl MS260 Pro Chainsaw Cylinder and Piston Replacement

UPDATE: the farmertec rebuild kit in this video did not work out. The piston wrist pin was loose and generated ~125psi (seen in the video) compared to the original cylinder/piston/wrist pin that generates ~145psi (even using farmertec rings!)

Stihl MS260 Pro chainsaw that would not start. Diagnosed it and saw a scored piston so I replaced the cylinder and piston.

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[mzi]

I just replaced rings from my brushcutter piston successfully, with the help of such videos. Now my stihl brushcutter is working fine and it's powerful like a new one😊

[Heritagepostfarms]

I could kiss you. The kit I got didnt come with directions and couldnt find a video! Thank you!!

[byfordbarnard]

U left off getting the screws out of carb boot and cylinder. Special tools?

[gottabighit]

I have the same chainsaw ... it has less than 10 hours of use. I have had to replace the piston twice for same issue, scored piston. Stihl is refusing to repair or replace the saw. It will cost me $275 to have a local Stihl dealer replace the piston. Obviously a defective lemon. I will never own another Stihl. Any suggestions or recommendations would be greatly appreciated.

[delatroy]

I have a strimmer and unbolted the cylinder housing but it’s still stuck tight. Any tips ?

[kevinleetreetimefpv]

I saw where you said the rings compress by hand and go in easily. I thought you might have left that part out on purpose to keep the secret. That's actually the part I was looking for and wondering about. It would have been nice to see that critical part. That said, Great video, most informative and easiest to follow of all I've seen. I need to do a 362 but it wasn't worth $600 at the shop for a $900 saw. Thx

[philliphall]

Your lucky to catch it in time to clean it up and new ring 😊

[swordfish]

Good video. Nice tip on piston direction. I just tore down my 193t and I rubbed off the Stihl logo when cleaning and it does not have an arrow (I'm trying to re-use my factory cylinder and piston before I give up on them and buy a new kit). I also have a 026 and that is a very nice saw.

[butchtheiw]

Why'd you skip showing how you got those C clips out?? With all the good info in this video, getting those clips out is the one thing I can't figure out. That's the reason I got on this video. I can't believe nobody else commented on this.

[jameshall]

What did you use as a ring squzeer to get piston in jug ? /

[robstone]

Excellent video. Keep up the good work.

[utn]

Who ranned this? I saw that kind of damage on the piston and I may have an idea of what happened.
In most cases, you see that stuff when the user jumps on it while it's cold.

[johnclarke]

Any time a Stihl saw rolls over, immediately move it up to half choke and pull it over until it starts. If you pull it over after it rolls over, you will flood the saw.

[nolanharp]

How did you compress the piston rings to get the piston back into the cylinder?

[jamesstare]

That slightly worn OEM cylinder is still 10x better than the Farmertec cylinder. You should've just bought a good quality piston, like a Meteor or Hiway and new rings and kept the OEM cylinder.

[brianmilliard]

Didn’t use a torque wrench on the head bolts ?

[vascopires]

possibly from not being warmed up cold start and wot

[tedneitzel]

China cylinders and pistons mean huge power loss. Id of used the oem cylinder with a Meteor piston and caber rings. In fact thats what i did with mine!

[ronkolb]

The heading said Stihl Pro chainsaw. Is a 260 Stihl Pro

You miss how to compress ring into the vlinder