Mix ratio -- observing the blue smoke

[Andyshine77]

who said anything about proper tuning Andre you have selective hearing ? I'am saying a saw tuned from the factory for 50:1 ratio as Husky , Stihl , Dolmar does not need 40:1 that's quite apparent since factory engineers decide this not backyard hacks such as you and holycow !!

You're lack of etiquette speaks for it's self. What you accuse other of, is exactly what you are.

 

[toadman]

This reeks of oil thread... having yet to kill or damage a saw with poor oil just in order to gain insight, I'm out.

 

[albert]

The oil in the fuel m

The oil in the fuel mix at the proper ratio burns off creating energy within the fuel charge . The fuel has a cooling effect as it vaporizes Albert . Any excess oil which cannot completely burn off creates a soot or ash deposit which when repeatedly heated becomes a form of carbon deposit . Ash itself can help as a Simple lubricant in some engine applications , Gower at some point can cause harm . Simple right Albert ?

 

[North by Northwest]

You're lack of etiquette speaks for it's self. What you accuse other of, is exactly what you

and after all that you never really learned how to jet that equipment, or you would

9 years I ran 50:1 Stihl synthetic oil through a Stihl MS362. 9 years of solid no worries usage. Sold it last month and gave it a look and the piston and cylinder still looks as it was new. Granted that was with proper saw use and maintenance. Use oil and ratio what you are comfortable with and I agree with all that was said above my post. Cheers.

Omg Andre must have got a knot in his pantyhose when he read 9 yrs of trouble free saw usage with 50:1 oil ratio , blasphemy right holy cow !

 

[North by Northwest]

There's an Echo in here..Bwildered and Broken. Birds of a feather.

Factory engineers design stuff that breaks. "Backyard hacks" sometimes fix it.

"Sometimes" is the accurate rational , blowup is even more often the result Alberta boy , the thin air in the " Real Great White North " is having an effect on your common sense right Ace !

 

[North by Northwest]

You're lack of etiquette speaks for it's self. What you accuse other of, is exactly what you are.

Calm down Andre , no need to get a knot in your pantyhose every time someone questions your sensibility , hell I recall it took you over 3 months to troubleshoot a simple vapour lock situation on your 550 xp which caused hot starting issues . Heck my daughter could have solved that issue within a few hrs Einstein ! People in glass houses ....well you know the rest right ?

 

[North by Northwest]

Better men than us have proven otherwise through real-world testing and repeated engine teardowns. My own (and friends') experimentation, while minor in comparison, has aligned with their recommendations. We blew enough **** up in the quest for power (while following the recommendations of mfrs of machinery and oils) to learn better. This with bikes for many years.

when you follow the mfrs current recommendations (which really are a result of epa regulations), your equipment does not have the same durability as when you use common sense and the work of true professional racers as a guideline.

why do you think the modern saws don't live a long life like saws of old? A lot of it has to do with inadequate lubrication. Duh. Imo it's all about saving the crank. Pistons are maintenance items. 50:1 may be ok for top ends. May. But it will reduce bottom end life considerably.

running lean oil ratios makes no sense. 50:1 is on the edge. 40:1 is much safer. 30:1 safer yet, but when you start approaching 30:1 it becomes more difficult to achieve a clean burn. That's where finding the right oil becomes critical. Most oils start to become messy at 35:1 or so.

if you've been running this stuff for only 30+ years at your age you started very late. Or your arithmetic is faulty.

I'm 60 and have been running 2 strokes for nearly 50 years. For what that's worth. Nothing.

Wow for a guy who initially stated , we should just agree to disagree , you sure find it hard to let it go eh Alberta boy , are we still having fun Ace ?

 

[North by Northwest]

This reeks of oil thread... having yet to kill or damage a saw with poor oil just in order to gain insight, I'm out.

or reduction of oil within Manufacturers recommendations , I feel your pain and agree toadman !

 

[North by Northwest]

and after all that you never really learned how to jet that equipment, or you would have learned... compensating for poor jetting with leaner oil mixes is one of the ways we failed many years ago.

anyway, it's been fun. Let's agree to disagree and get over it.

regards

A little arrogant there and assuming a lot Ace !

 

[North by Northwest]

That's why you have needles to adjust the carb.

rather redundant unless elevation (barometric pressure) change warrant retuning , but yes fuel / air adjustment would have a cause and effect within the discussion friend !

 

[North by Northwest]

and after all that you never really learned how to jet that equipment, or you would have learned... compensating for poor jetting with leaner oil mixes is one of the ways we failed many years ago.

anyway, it's been fun. Let's agree to disagree and get over it.

regards

many more engines have been damaged by overlean air to fuel mixtures than lean oil to fuel ratios , give your head a shake !

 

[North by Northwest]

Haha , loved that shows satire !

 

[North by Northwest]

There's an Echo in here..Bwildered and Broken. Birds of a feather.

Factory engineers design stuff that breaks. "Backyard hacks" sometimes fix it.

Yes even Echo recommends 50:1 with their Premium Synthetic oil use lol. P.S. sorry , do not know Mr Bwildered is he another individual who questioned your rational ace .

 

[North by Northwest]

More oil doesn't equal more carbon with proper tuning. In fact due to the dispersants in modern two cycle oil I see less buildup with more oil. Carbon is the least cause of failure I see in 2 cycle engines.

Your blanket statement does not hold water , not all saw users use group IV or V oils with the additional additives . Even with dispersants anti galling and oxidation additives excessive oil mixtures overtime can cause carbon fouling , even more so when you combine the synergistic effect of today's corn fuel . Not everyone lives in your utopic world Andre . We have crossed minds previously , you always resort to name calling or character assination when ever some one disagrees to drink your Koolaid , please grow up ...

 

[North by Northwest]

You're lack of etiquette speaks for it's self. What you accuse other of, is exactly what you are.

More name calling Andre , your so mature and informed...yeah right !

 

[huskihl]

This site needs to reopen the P&R section.

 

[North by Northwest]

Better men than us have proven otherwise through real-world testing and repeated engine teardowns. My own (and friends') experimentation, while minor in comparison, has aligned with their recommendations. We blew enough **** up in the quest for power (while following the recommendations of mfrs of machinery and oils) to learn better. This with bikes for many years.

when you follow the mfrs current recommendations (which really are a result of epa regulations), your equipment does not have the same durability as when you use common sense and the work of true professional racers as a guideline.

why do you think the modern saws don't live a long life like saws of old? A lot of it has to do with inadequate lubrication. Duh. Imo it's all about saving the crank. Pistons are maintenance items. 50:1 may be ok for top ends. May. But it will reduce bottom end life considerably.

running lean oil ratios makes no sense. 50:1 is on the edge. 40:1 is much safer. 30:1 safer yet, but when you start approaching 30:1 it becomes more difficult to achieve a clean burn. That's where finding the right oil becomes critical. Most oils start to become messy at 35:1 or so.

if you've been running this stuff for only 30+ years at your age you started very late. Or your arithmetic is faulty.

I'm 60 and have been running 2 strokes for nearly 50 years. For what that's worth. Nothing.

Ace , your thinking is antiquated todays modern synthetic oils protect all internal engine components at the saw manufacturers recommended ratio 50:1 . There is no need to test , and destroy equipment to prove your rational . I have tested numerous oil class,s during my teens racing snowmobiles and motocycle . Castor oils were the most effective , however required religious decarbonizing , which was routine since we tore engines down every 2nd week between racing weekends . Actually never blew a engine due to lack of oil or proper tuning in competition . Numerous blown head gaskets , broker cylinder head bolts , broken suspension components and clutching issues due to inferior drive belt technology back in the day . Just the routine trial and error issues of recreational racing in the day . In closing 40:1 or fatter oil ratio,s will not destroy your saw engine overnight however it will diminish plug life and can cause a hotter running engine that will require eventual retuning or even rejetting in some user elevations that can if neglected can cause severe engine damage , that's a well known fact !

 

[North by Northwest]

This site needs to reopen the P&R section.

I here yeah bud ! Sorry

 

[North by Northwest]

This reeks of oil thread... having yet to kill or damage a saw with poor oil just in order to gain insight, I'm out.

You can say that again , 100 % correct !

 

[Toyboy]

Let me ask you fellas this. When changing from 50:1 to 40:1 say, does the saw require re-tuning or is the ratio so small that it's not necessary?