Has anyone had a Recent problem with Sthil Mix orange bottle?

[outonalimbts]

In the Past 2 weeks I have burned up 2 large chainsaws using the 50:1 oil mix from Sthil in the 2 1/2 gallon mix sized bottles.

I at first thought that I might have a torn Manifold on my husky 395XP, because it behaved as though I had sucked some air, it burned up a couple of weeks back. A real shame Ol' reliable went down.

But, alas today I had my 365/372 big bore go down too, same symptoms. I checked the gas didn't look as dark as it should but figured it was measured correctly...

Dumped all the gas from all the equipment back in to the 5 gallon can, and added another bottle of "juice" to it to make sure no others burned up. The saws smoke a bit, but I would rather go through 3 spark plugs than 1 motor a year!

Bailiey's has the big bore kits at a reasonable price, but by the time you do that, you should also get a host of other new parts, I have $400 of parts in addition to the cylinder/piston kit that I just got in. That is only on one saw, now another... GRRRR!

So, anyone else experienced this recently? BTW We shake the hell out of the mix every time we add it to a saw period, even if we just did it a minute before, so please don't advise me to shake well!!!

Thanks in advance-

 

[garmar]

I bought a new MS 290 today and the saw guy there recommended that I only mix enough for 30 days at a time because of the ethanol in our fuel degrading the oil. You sound like you're a professional woodcutter by the sound of the equipment you're running, so you probably aren't using old gas/oil mix.

Could just be a crappy coincidence.

 

[Rftreeman]

50:1 in those saw, bad idea........same thing happened to my 394xp, helper put my back pack, trimmer gas in the saw.

 

[outonalimbts]

I use abot 5 gals a week, so it shouldn't be degrading the oil...

I bought a new MS 290 today and the saw guy there recommended that I only mix enough for 30 days at a time because of the ethanol in our fuel degrading the oil. You sound like you're a professional woodcutter by the sound of the equipment you're running, so you probably aren't using old gas/oil mix.

Could just be a crappy coincidence.

it is CRAPPY! I think I will just rebuilt it yet again, the price of a new saw at the moment isn't in the bank...

 

[groundsmgr]

I heard from my sthil guy that they want you to use 89 octane now as well

 

[PasoRoblesJimmy]

Been using 50:1 and 40:1 Stihl orange oil since 1993. I have gotten two batches of bad 87 octane gas. I never have had an issue with the oil. I recently changed over to semi-synthetic and 89 octane gas. Semi-synthetic doesn't smoke like the orange dyno oil and my spark plugs run cleaner. I haven't tried full synthetic yet.

 

[matt9923]

I said you felt like you had an air leak?
vac/pressure test the case. May have a bad seal or 2.
rebuild the carb
test fuel lines and impulse hose.
tune it a bit rich , if you have never tunes it it could have been to lean.
Your mixing confused me? u mixed in a 5 gallon can with a 2 1/2 gallon oil bottle?
Iv used older gas and #### oil in my 039 for ever and its p&c is like new. I keep it tuned and test for air leaks every so often while i have it torn down for cleaning.
Somethings wrong if 2 saws go.
basically more oil may work but if theirs a mechanical problem or air leak it is only a cover up.
my .02

 

[phillytreeking1]

i was recommended to use high test . use 93

 

[Marty B]

:agree2:

 

[rngrchad]

I would imagine your Carb settings are too lean. You need to richen'm up a bit with the carb...rather than the mix of oil to gas.



I've run 50:1 orange bottle for over 10 years. Trimmers, backpack blowers, huskies, stihls, big and small saws, etc etc. Haven't locked on up yet and I run'm real real hard.