Winter shutter reminder and question

reminder to put your winter shutters on your saws. I have to admit I’ve forgotten many times, but it never had any problems.

What is the temp that shutters should be put in the winter position?

Who wants the responsibility to remind us horders to put shutters back it summer position when it warms up??...

 

Thanks, now I've got something to do tomorrow. They may still be in the winter position from last winter LOL.

 

Shutters? What might those be? I know of the type that go on windows. Guess I'll be firing up the Google

 

Only "better" grades of saws have them (maybe only pro saws?) my Craftsman saw doesn't have shutters
In effect, the shutter recycles some of the warm air coming off the saw, back into the intake area...helps maintain the saws normal running temp in cold weather...also, and probably more importantly, helps to maintain the fuel/air mixture ratio on carbureted saws since cold air is more dense, real cold air can make things that are extra sensitive to fuel air ratio (like 2 stroke saws) run lean (and we all know that's BAD!)

 

My Stihl 029 super has the shutter for winter/summer use

 

Yep, so does my dolkita. Thanks for the reminder, I'll be firing my dolkita up today, attempting to burn up the last of my gas from October.

Like brenndatomu says, all decent saws have these.

 

my homeowner grade stihl and husq have them.

 

My 044 doesn’t have a winter shutter / diverter . It’s mentioned in theowners manual ,but there isn’t one on the saw .

 

I wonder if the flapper is just missing...my "MU-SHU" 660 (chinese Stihl 660 kit) didn't come with the shutter either...some did, some didn't...I can't imagine it costs much...not sure if it is worth worrying about or not though...I haven't ran it in the winter yet.

 

If I'm remembering my Jonsered 2152 owners manual correctly or any of the manuals from multiple saws I've owned/own, they recommend using the winter setting when temps get to 10F or lower. I cut throughout the winter here in Iowa and I'll change the shutter if I remember but I've not noticed much, if any,difference from either setting.

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I didn't run out a tank of gas in the dolkita, but I ran it long enough to get all of my too long pieces shortened to fit north/ south in my insert, as well as cut all of the remaining pieces of the ash I had that were needing to be bucked.

It was just as easy to change the dolkita to winter mode as it is on the 029super.

 

Nope,not missing . There is nothing in the partition wall where the manual states there is one .
To be honest , even on my sawswith the winter flap , I never use it .

 

About the only time they are necessary .That and deep snow . The constant melting of the snow (steam)and high air flow will ice up the carb . If anyone had sleds back in the 70s, you'll remember the old tillotson carbs having frost all over them when it got real cold and deep snow .
I've drilled holes in the firewall and used duct tape or ear plugs to close them off in the warm seasons .

 

Who wants the responsibility to remind us horders to put shutters back it summer position when it warms up??..

The above would be a more important move......dont want the extra heat in high temps.

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Cleaned and sharpened my 260 last night (haven’t used it since last summer, my 026 has Ben getting more work) I still had the shutter in the winter position since who knows when. Oh well, it ran just fine!

 

The manual for my 362, 461 and 661 all say to flip the shutter below 50°f. to prevent carb icing.

I usually do but have forgotten many times and never had a problem.

 

None of my saws have them and I have cut in below zero temps many, many times and never had an issue. I will tune the saw after it gets to operating temperature though, sometimes I will have to re-tune through out the day due to a freak warming.

 

My 261cm version 1 manual says the same.

Thanks for the reminder Dakota Hoarder

 

I have a friend that was almost killed in a plane crash. It was around 70° and he was on his final approach, the tower called him off because another plane was low on fuel. He shut off the carb heater and forgot to flip the switch back on, he circled twice and the engine died just off the end of the runway. The humidity was higher than the ambient temp that day which was the major cause of his carb icing up