mixing ratios for 2 stroke chainsaws

[Tomos770]

Oceans are soaked/saturated with co2....

I think that that will be our "pool" from where we will start "pumping" E-fuels...

https://coral.org/en/coral-reefs-101/global-threats/

 

[bwalker]

Oceans are soaked/saturated with co2....

I think that that will be our "pool" from where we will start "pumping" E-fuels...

https://coral.org/en/coral-reefs-101/global-threats/

The ocean floor is full of methane hydrate as well.
Pulling either out is very expensive.

 

[Campbellcontractlogging]

For most of us it's not what works. Most any petroleum oil would probably work.
Alot of those old saws don't have many hours on them. Lots of guys think there saws have a ton of time on them, but they just don't. A full time logger will get only 1-2 years out of a saw and to get two it's going to need to be re ringed once.

He’s right is all I hafto say.

 

[bwalker]

What wrong with a hotter tune? most run a blubbering ring sticking carbon producing cold tune thinking it's good lol

That's true... most can't tune a carb to save their lives.

 

[bwalker]

I recently had a conversation about mixing ratios for 2 stroke chainsaws and I would like to hear more opinions about it.
I have watched 2 you tube videos that confirm what I have always thought, that more oil causes more heat because it burns hotter than gas.
Here is a link to one of the videos I watched on this subject (by Dave's small engine channel) and I would like to hear what our experts have to say in this forum about this video.
It is a simple and effective method to prove my point that heat levels increase when more oil is used.



thanks in advance and sorry if I'm beating a dead horse here!

YOUTUBE is full of stupidity and this video is a prime example.

 

[bwalker]

Couple of points. Youtube is about the worst place to get info on this subject. Combustion oil tends to pull heat out of the combustion chamber. Increased oil content increases compression slightly via improved ring seal, which can increase engine heat. Fixating on heat alone is myopic at best.

 

[GASoline71]

2-strokes have a lubrication requirement... not an amount of oil requirement.

Gary

 

[Lightning Performance]

Alzheimers?

Should be by now. You guys and gals are on page 29 now

 

[Lightning Performance]

"Mix oil is a higher BTU/gallon than gasoline, so having more of it in your mixture is going to mean your mixture has more potential energy.
This is always going to mean that for the same volume of mixture consumed, there is more potential heat in said mixture."

I took this quote from another thread. So, on one hand, my thinking about oil=heat was correct but I was incorrect in thinking that it noticably affected running temperature if you adjust the carb to compensate for the leaner condition . Thanks to all for your input and I hope everyone's winter will be mild!
ps. feel free to agree or disagree with my conclusion!!

This winter sucks man.
One freezeup and now weeks of 60s vs the 40s we should have. No snow in our nearby mountains means no late thaw and no spring feed waters. The trees here will open buds on some by the weeks end with this constant on off rain and very high humidity now. The growing things ingeneral go sideways when we have mild winters here in the NE USA. I hope your brain is in for a mild winter but not our weather outside

 

[RTK]

That's BS logic.
Lead is really nasty and there isn't a single good reason to use it. Sunoco 110 isn't well suited to a 2 stroke and your probably making less power to boot.
I work in a refinery and have worked in heavy industry my whole career. This isn't a good reason to ingest further crap in the form of lead.

I use 100LL in all my yard equipment and chainsaws, there is a good reason for me. It lasts indefinitely, doesn't varnish or ruin any parts of the carb no matter how long I leave it in the tank.
I'm not a professional landscaper, arborist or in the tree cutting business so my exposure is pretty low. The lead levels in my body are normal, had them checked because I reload and cast bullets.
Does it make less power? Maybe but nothing I can notice.
So there actually are good reasons for some to use 100LL.

 

[bwalker]

I use 100LL in all my yard equipment and chainsaws, there is a good reason for me. It lasts indefinitely, doesn't varnish or ruin any parts of the carb no matter how long I leave it in the tank.
I'm not a professional landscaper, arborist or in the tree cutting business so my exposure is pretty low. The lead levels in my body are normal, had them checked because I reload and cast bullets.
Does it make less power? Maybe but nothing I can notice.
So there actually are good reasons for some to use 100LL.

When exposed to lead it's out-of your blood within 48 hours IIRC. From your blood it travels to your bones, brain, eyes and other tissues where it hides out for a long time. So unless you have had a bone biopsy you have nonidea how much lead is in your system.
If leaving gas in your equipment long term is something you do use one of the canned alkylate fuels.
There is no good reason to use 100LL

 

[RTK]

After exposure it will stay in the blood for about a month give or take, not 48 hours. No bone biopsy's needed with modern day technology.......
It is absorbed into the bone where it can reside for many many years, less for other organs. It is released back into the blood stream slowly so it will show up in blood work where you can asses your levels, no bone biopsy needed. I'm in the medical field...
Until 1973 or so pump gas had lead in it, definitely not good for humans. I don't use some of my equipment for many months, 100LL does not deteriorate or cause other problems associated with pump gas.
I'm not recommending it to anyone, but it serves a purpose for me and will not have any adverse affects to my body in the way I use it.

 

[bwalker]

After exposure it will stay in the blood for about a month give or take, not 48 hours.

It is absorbed into the bone where it can reside for many many years, less for other organs. It is released back into the blood stream slowly so it will show up in blood work where you can asses your levels, no bone biopsy needed. I'm in the medical field...

Until 1973 or so pump gas had lead in it, although not good for humans we still survived. I don't use some of my equipment for many months, 100LL does not deteriorate or cause other problems associated with pump gas.

I'm not recommending it to anyone, but it serves a great purpose for me and will not have any adverse affects to my body in the way I use it.

The rate at which it leaves the body is extremely slow. As such a blood test is about useless and are only used to assess lead poisoning or recent exposure. Bone biopsy or XRF Xrays are used to study the body's lead load. If your in the medical field with experience relevant to this subject you should know this.
Yes, there was much more lead in the environment when gas contained lead. IQ scores were also lower.
I stated IIRC after my 48 hour comment because I was going off memory. I haven't studied the issue in a few years..
As a medical professional you should be educated enough to know what your doing is stupid when lead free products will accomplish the same thing.

 

[RTK]

.......bwalker, you sure have a high opinion of yourself and are overly confident in many things you speak. Pretentious is a word that comes to mind................

 

[Piotr Pakuła]

Gentlemen, an elemental hair analysis is enough

 

[bwalker]

Gentlemen, an elemental hair analysis is enough

No, it's not. Hair testing is often used with blood testing to assess short term exposure. It's seldom used by itself to assess anything.
Its only useful for asessing recent exposure of 6 months to a year max. Lead stays in your bones for decades.

 

[RTK]

As a medical professional you should be educated enough to know what your doing is stupid when lead free products will accomplish the same thing.

We all take risks in life, one has to judge what that risk is and if it is worth taking.
Some people won't fly single engine over mountains, some do. You mitigate the risk as much as possible to make it acceptable.

 

[Piotr Pakuła]

Nie, nie jest. Testy włosów są często stosowane wraz z badaniami krwi w celu oceny krótkotrwałego narażenia. Rzadko jest używany sam w sobie do oceny czegokolwiek.
Jest to przydatne tylko do oceny niedawnej ekspozycji od 6 miesięcy do maksymalnie roku. Ołów pozostaje w twoich kościach przez dziesięciolecia.

it is from the hair that we know what fate the Romans made for themselves and it's probably been more than a year

 

[bwalker]

it is from the hair that we know what fate the Romans made for themselves and it's probably been more than a year

That may be so, I don't know. It doesn't change a thing in regards to what I said.

 

[bwalker]

We all take risks in life, one has to judge what that risk is and if it is worth taking.
Some people won't fly single engine over mountains, some do. You mitigate the risk as much as possible to make it acceptable.

Yes, we do. However, I try not to take a risk with little to no benefit other than saving a few dollars vs using canned fuel.