MS261 c-m inbound

[Grey]

I have a new MS261 C-M coming in this week through my local dealer. Any suggestions on easy muffler mods,etc.? I'm not concerned about warrantees. Just want the very best reliability (it is not uncommon to have to saw myself out of my driveway, see attached picts) and secondarily best performance. P.S. I have stock MS361 and MS461, too.

 

[Teddi]

On my 261C I copied the fish gills Brad Snelling put on the 241 muffler in his 241 porting thread, in addition to opening up the original exhaust hole under the screen.

 

[Ironworker]

I did the fish gills on mine and am very happy with the results.

 

[blsnelling]

They're an easy saw to make run very well, even without porting. The squish is very big from the factory. Tighten that up and mod the muffler. You'll think you have a ported saw when you're done. Tightening the squish not only serves to increase compression, but also adds intake duration. Give it a whirl!

 

[Grey]

Thanks for all the responses

 

[Spectre468]

They're an easy saw to make run very well, even without porting. The squish is very big from the factory. Tighten that up and mod the muffler. You'll think you have a ported saw when you're done. Tightening the squish not only serves to increase compression, but also adds intake duration. Give it a whirl!

Is this done by removing the gasket?

 

[blsnelling]

Personally, I use the factory gasket and turn the cylinder base down on the lathe. You may or may not be able to ditch the gasket. I wouldn't go any tighter than .016" squish.

 

[SCHallenger]

They're an easy saw to make run very well, even without porting. The squish is very big from the factory. Tighten that up and mod the muffler. You'll think you have a ported saw when you're done. Tightening the squish not only serves to increase compression, but also adds intake duration. Give it a whirl!

I can testify to that!! Thanks again Brad!

 

[Grey]

Final set up 16" E Bar with 0.325 x 0.063 67 DL RS chain. 15# 4 oz ready to cut with full tanks, bar and chain on. Cuts fast and smooth making cookies. Even did a few bore cuts and also buried the bar noodling some partially dry beech and it performed just fine.
Love it!

 

[XSKIER]

Shoulda got the arctic version if that snowy mess is your intended usage... either way, congrats on the new Stihl!

 

[Jp_over]

I have a new MS261 C-M coming in this week through my local dealer. Any suggestions on easy muffler mods,etc.? I'm not concerned about warrantees. Just want the very best reliability (it is not uncommon to have to saw myself out of my driveway, see attached picts) and secondarily best performance. P.S. I have stock MS361 and MS461, too.

Any long term update? Am considering this saw (MS261 C-M) as well. Thanks!

 

[blsnelling]

They're one of the best 50cc saws ever made.

 

[cedarhollow]

mine is still stock and it cuts like theres no tomorrow with rs chain on it

 

[Jp_over]

Thanks for the updates; I think this saw will be my next one.

Cedarhollow - what's an "rs chain"?

 

[EchoRomeoCharlie]

Thanks for the updates; I think this saw will be my next one.

Cedarhollow - what's an "rs chain"?

Stihl RS(rapid super) chain is non safety full chisel chain

 

[full chizel]

Convert it to PICCO PS/PS3 and it’ll cut even faster