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mixing ratios for 2 stroke chainsaws
- Thread starter sawmill sam
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Smitty Smithsonite
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My neighbor bought a Stihl years ago - can't remember the model, but he ran Amsoil Saber at 80:1, and cut 10 acres of overgrown MA woods with that one saw, all day every day for a few years. That's felling, limbing - everything. I was ordering him sets of 5 chains every 4 months for quite some time, and he sharpens by hand, too. Saw still runs great. Has NEVER been apart for any decarbonizing, or fuel issues.
That said, there isn't an oil on the planet I'd run at 80 or 100:1, EXCEPT Saber. I run it in my paramotor at 66:1, with head temps nudging 400° every time I climb out in the summer. 190cc, air cooled. Got almost 40 hours on it so far with zero signs of engine or crank wear.
View attachment IMG_4108.mov
That said, there isn't an oil on the planet I'd run at 80 or 100:1, EXCEPT Saber. I run it in my paramotor at 66:1, with head temps nudging 400° every time I climb out in the summer. 190cc, air cooled. Got almost 40 hours on it so far with zero signs of engine or crank wear.
View attachment IMG_4108.mov
You saying a damn chainsaw is a complex device?
If we are slinging insults. I'm thinking your a retard that overestimates his ability..
There is no reason to plug a screen up and in fact if you can tune a saw they litteraly will not plug up..
I think he just had a complex....
You find your making max power at that CHT? Seems high, but not dangerously high.
When Inwas tuning sleds I used EGT instead of CHT as the response time is quicker.
When you run out of plausible rhetoric- head for the insult pile!
If your neighbor or whoever comes over with a trimmer or blower with a complaint that it won't rev up check the muffler screen FIRST...
It will save you a lot of tail chasing.
The fact that Walker is not aware of that tells me what I need to know about what he knows.
I guess he has never used or worked on anything but a chain saw. Although I have seen them stopped up it is very uncommon. Has to do with how much they are idled.
Not sure where you got chainsaw out of any of that, or that I ever worked on anything that I tuned or had ever even seen before.
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Waiting for customers pick up Tuesday. Although you can't see all the Terminex blowers with the tanks to the left.
I have plenty of confidence in myself. But though I am a Professional Engineer who has authored more than 3 dozen technical articles and two technical books and am considered an expert in my field, I realize that I do not know everything, not even in my specialty. I also have confidence that both the equipment OEMs and the major oil manufacturers know more about lubrication than the end user does. While it is true that the manufacturer may not have the same goals as the end user, at least they are more likely to know what they are doing. And I have seen some of the test reports on lubrication conducted by government test institutes. Interestingly, Amsoil Saber meets the government standards at any ratio from 16:1 to 100:1. Will more oil deliver better results? I don't know. But some users have used 100:1 in all their equipment, regardless of age, for over 20 years. While I will probably continue to use 50:1, there is a downside to using really rich oil ratios such as 25 or 32: plugging the spark screen with carbon and sludge, for example, or increased carbon deposits within the engine. While I am not running my saw day in and day out (I just cut firewood for personal use and some TSI work), when I am running it to buck firewood, I am pretty much running it continuously at full power except when I stop to refuel. That means it will get as hot as it is ever going to get. My present saw is a Stihl MS500i. It will buck a bit more than a cord per hour. Previously I used a MS441C.
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Too late now, you already picked the scab off the personal insult boil and lowered your credibility rating.
Well, we have established you have zero reading comprehension..
I said I have never had a screen plug up...ever...and inuse ratios containing more oil than 50:1.
What sort of engineer and what state is your PE license in?
There are no government standards on two cycle oil..
You do realise that comprises must be made in regards to things like oil ratios. This done for a variety of reasons and if you were an engineer in industry you would know this.
As for the last third of your post. It's rubbish. Typicaly in my expiereance engineers refrain from making blanket statements like you have made. Its pretty you don't have a clue what your talking about so the again I will ask. What sort of engineer are you?
LOL, I bet you are really hurt.Too late now, you already picked the scab off the personal insult boil and lowered your credibility rating.
Poor old BWalker. Must be tough keeping ahead of the engineers in the industry.
Like it is some of his business what kind of engineer Hermio is to start with.
Ever notice how they pick up little cheer leaders. Sort of like Jim Jones I suppose.
Like it is some of his business what kind of engineer Hermio is to start with.
Ever notice how they pick up little cheer leaders. Sort of like Jim Jones I suppose.
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Not at all- your rating was already pretty low.
I see sarcasm is not your strong point either.
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I have plenty of strong points thanks- one of them is not stooping to school yard type bickering.
I do love a good oil thread... LOL
Well , it ends up that way often. Did you learn anything from anybody on the thread ?
I actually did. Never knew that Husqvarna recommended 33 to 1 in larger displacement saws.
And, if they recommend it that is what I would do. Which was my point from the start.
