3 Cycle chainsaws

[AKDoug]

That sounds like the STIHL 4-MIX engine.

Holy Necropost batman...

That's what it is. In my last Stihl class it was mentioned that 4-Mix has gone as far as it's going to go. Strato engines on the chainsaw are clean enough to pass current EPA standards and it's doubtful the EPA will impose further restrictions at this point. This link can be found through Google, so I don't think I'm posting something I am not supposed to... http://servicesupport.stihlicademy....rol_2012-75cb1c07f6b019b960b41f2e55e8343b.pdf

 

[anlrolfe]

I thought this was called a wankle engine??

http://www.advrider.com/forums/showthread.php?t=760822

http://contest.techbriefs.com/2011/entries/sustainable-technologies/1450

 

[anlrolfe]

Could actually reduce weight and improve power....

Be a booger to rebuild I bet!!

 

[AKDoug]

I thought this was called a wankle engine??

http://www.advrider.com/forums/showthread.php?t=760822

http://contest.techbriefs.com/2011/entries/sustainable-technologies/1450

The original post was in 2001. It was about the 4-Mix that was introduced that year. http://www.stihl.com/4-mix-engine-lightweight-and-with-good-lugging-power.aspx

Wankles were cool. I have a friend with two of them that came in Arctic Cat snowmobiles in 1971.

 

[CRThomas]

also the main benefit of a 2 stroke engine is being able to cut even when the engine is upside down...how are they gonna make that work if it has an oil sump?

They now make a 4 cycle chain saw for processers can only cut up and down

 

[jdhacker]

I have a FS90 4-mix when they first came out, and it has many many hours on it. My son keeps the fence cleaned on two farms with it. The only thing I have every done to it was one fuel bulb.

 

[7hpjim]

it sounds like it will be like the cadilac 4-6-8 motor of the early 80's such a bomb that they only offered it for half a year. leave it to the germans to screw everything up for us all.

I remember those 4-6-8 caddys, had a nasty habit of setting themselves on fire like a Buddhist monk!!