is STIHL the only one doing 4-mix and how does that make more power than 2-stroke?

[lehman live edge slab]

I doubt anyone wants to come out with chainsaws or more products using "4mix" type technology. When 4mixes were released Stihl claimed they HAD to develop the technology because it was going to be impossible to produce 2 strokes that met emission standards. The 4 mix machines are substantially heavier, more complicated and require more maintenance than comparable 2 strokes and Stihl lost significant market share when they were introduced.
Not a path most companies want to follow.

That’s ok that you don’t like them but lots do like them and actually like the torque they have on a weed trimmer or brush cutter. I have a pole saw with one and dad is still running a br 600 that he bought first year out. Should adjust valves on the br 600 but haven’t and starts/runs great still. If they lost a ton of market share they must have had all of it before because I don’t think they’re hurting in the blower/trimmer market.

 

[EFSM]

They first referred to such engines as C4, then as H4 (Hybrid 4). After the merger with Kioritz, such equipment rather disappeared from the market. What's left is their partially working website dedicated to this technology.

Actually, Echo just revived this with their new 5810 blowers. They are a real powerhouse compared to the 580, which they replace and were no slouch themselves.

 

[el33t]

Actually, Echo just revived this with their new 5810 blowers. They are a real powerhouse compared to the 580, which they replace and were no slouch themselves.

They did! MSRP is surprisingly low compared to 2-stroke models.

 

[lehman live edge slab]

They did! MSRP is surprisingly low compared to 2-stroke models.

Apparently Stihl isn’t the only one that thinks it’s still good

 

[el33t]

Apparently Stihl isn’t the only one that thinks it’s still good

I wonder why they withdrew these products and are now coming back with them. Maybe it was about some intellectual property issues after the merger.