fuel mix ratio?

[acewoodsman]

i know u do need to use the 2 cycle mix in the stihl mine is a 250 stihl an i use a 50-1 mix which is 2.6 oz of oil to one gal of gas ratio hope this helps u should be able to call someone who is a dealer for stihl

[minnesotascott]

Stihl website says 50:1

[Admin]

The same thing on my saws. 50 to 1 ;D

[lilweasel]

All my saws run on a 50:1 ratio.

[coonhunter87]

I have the same saw and I mix mine 40:1 its a old saw and the parts are hard to find so i mix it a little rich I use stihl 2 stroke synthetic oil. They are great saws and I would hate to wreck it cuz its made like a tank unlike the new ones that are all palstic! ;D

[redtickman]

the older stihls ( the .025-.090) use a 40:1 ratio the newer ones the ms series 250-880 use 50:1 and rich means means more oil in the the ratio lean means less oil in the ratio

[whistler]

Well got to be at least one different in a crowd. I have an old Echo bought it new in 1985. I have burned wood every year since as my only heat source and have had 0 problems. I did bust the housing with my tractor once but my dealer took an old one in on trade and sold it to me for 10.00. Try that at your big stores! I swapped the broken exterior case and it's still running like a champ. I have been for several years using the Opti-2 one mix oil. Love it. I used to have an older Lawn Boy push mower 2 stroke, a weed eater, leaf blower, an the chain saw all with 2 stroke engines and my wife is not afraid of work. When I had several cans of gas around with the various mixes she was likely to put it in anything. 1 tube of opti2 to 1 gal of gas and I'm off and running. I use one can for every 2 stroke engine on the place now, regardless of mixture.
coonhunter I had an engine man tell me that a rich (too much oil) was worse than too little oil. (within reason) The manufactures were already running a rich mixture just to protect things if you get a little stingy with the lube???

www.opti2-4.com/html/home.html