New to Me Stihl MS391

[wfopete]

To replace my 25+ year old O26. Just bought it new and have not even started it yet. Seemed from what I read it was a pretty good saw. Wanted to stay away from the M-Tronic stuff for now.

So folks with this saw what should I be aware of good, bad or ugly?

Thanks

 

[1Alpha1]

Just bought my 2nd Stihl saw with M-Tronic. No regrets at all.

Congrats and safe sawing with your new one.

 

[wfopete]

I have read reviews where the 391 is tempermental on starting. EZ to flood.

 

[jltrent]

I have one, if you go by the directions is starts good. I did have to replace the coil and they are not cheap. Do not store gas in it (startup and run dry). A little heavy, but for a 64cc saw not bad, they are overpriced also IMO, but still a good saw. You did good.

 

[wfopete]

Kinda wanted a pro but for a little as I use it I couldn't justify the additional $150.

Does fuel stabilizier help with the stale gas/no start issue?

 

[wfopete]

Kinda wanted a pro but for a little as I use it I couldn't justify the additional $150.

Does fuel stabilizier help with the stale gas/no start issue?

 

[user 122190]

Run ethanol free gas. If it is not available, fuel stabilizer is your next best option.

Kinda wanted a pro but for a little as I use it I couldn't justify the additional $150.

Does fuel stabilizier help with the stale gas/no start issue?

 

[wfopete]

With all the trouble getting REAL non-ethanol fuel I think I'll just pick up some VP race or AV fuel.

 

[bang]

I like my 026 better than my 391. Being an old guy I dont like the weight of the 391 and I only use it for bucking larger logs. Did your 026 die or are you just trying to upgrade?

 

[LoveStihlQuality]

Kinda wanted a pro but for a little as I use it I couldn't justify the additional $150.

Does fuel stabilizier help with the stale gas/no start issue?

I really like storing with canned fuel in 2 strokes. Trufuel, Stihl MotoMix, VP. They have long shelf life. They have synthetic oil and stabilizer built in. To store or if unsure when next use, dump out pump gas (I dump it my truck), add Trufuel etc run saw to get it through the carb. I don't run it dry with canned fuel. It is expensive at 5 to 6 bucks a quart so mix up pump gas when cutting.
Snowblower started first pull.
Trufuel has 4 stroke also. I use it storing mowers, wood splitter etc.

This works great for me. Have not had any carb or fuel problems all. Many just run dry.

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[LoveStihlQuality]

I really like storing with canned fuel in 2 strokes. Trufuel, Stihl MotoMix, VP. They have long shelf life. They have synthetic oil and stabilizer built in. To store or if unsure when next use, dump out pump gas (I dump it my truck), add Trufuel etc run saw to get it through the carb. I don't run it dry with canned fuel. It is expensive at 5 to 6 bucks a quart so mix up pump gas when cutting.
Snowblower started first pull.
Trufuel has 4 stroke also. I use it storing mowers, wood splitter etc.

This works great for me. Have not had any carb or fuel problems all. Many just run dry.

Sent from my SM-N900P using Tapatalk

The canned fuels have a very different smell from gasoline .

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[wfopete]

The o26 just needs some TLC in the fuel/carb department. The o26 is agreat saw but I also have some good size trees that will need to be cut up and a bigger saw will make that job much EZer. Plus I'm a vet so I bought the 391 as a present for myself on Veterans Day.

 

[wfopete]

Canned fuel! Duh. I knew better, thanks for the reminder.

 

[Cope1024]

Here in Houston we are pretty much relegated to E-10 fuel. I run 89 octane with Fuel medic additive in all my 2 cycle and 4 cycle engines.

 

[LoveStihlQuality]

Here in Houston we are pretty much relegated to E-10 fuel. I run 89 octane with Fuel medic additive in all my 2 cycle and 4 cycle engines.

I just looked up Fuel Medic. $12 for 2oz bottle?

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[Cope1024]

I just looked up Fuel Medic. $12 for 2oz bottle?

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It's too cold to go to the shed, but I bought it on Amazon. I got a concentrated bottle that covers 500 gallons. I use a syringe to add it to my gas cans. My dealer recommended it.

 

[Cope1024]

I just looked up Fuel Medic. $12 for 2oz bottle?

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https://www.amazon.com/Fuel-Medics-...TF8&qid=1542135394&sr=8-1&keywords=fuel+medic
I got a concentrated bottle that covers 500 gallons. I use a syringe to add it to my gas cans. My dealer recommended it.

 

[Charles P]

With all the trouble getting REAL non-ethanol fuel I think I'll just pick up some VP race or AV fuel.

I use 93 octane gas, from Mobile. Starts good, runs cool, ect. Aviation fuel is maybe to high of an octane for the saw. use to be about 101