http://world.honda.com/motorcycle-technology/pgm-fi/

 

That's a sign of the times...

With ever tightening emissions I'm sure the day will come when you can't get a lawnmower with a carb or a 2 stroke chain saw...

 

<div class="FTQUOTE"><begin quote>Originally posted by: JeffinTD

That's a sign of the times...



With ever tightening emissions I'm sure the day will come when you can't get a lawnmower with a carb or a 2 stroke chain saw...</end quote></div>


I watched a show where everything will go 4 stroke but a chain saw. The chain saw has to be light weight ,have a high rpm and still run upside down and ever other position all of which a 4 stroke can not do ore ever do they said.

 

I remember seeing something about a company (Pulan?) that was playing around with 4 stroke designs that could be run at odd angles, anticipating the day when 2 strokes would no longer be able to be made to meet emissions for power tools. I'm sure the power to weight ratio would be reduced, and cost would be increased.

I used to think power equipment emission requirements seemed silly, but somewhere I saw some statistics about how much hydrocarbon and carbonmonoxide a mower can generate compared to modern cars, and was shocked.

 

I think they will let the logging industry slide on the emission thing with chain saws but thats about it,there new skidders will be green though.

 

Skidder wise, yeah, the dang particulate filter, cooled exhaust recirculation, catalytic converter type junk that comes on all the new diesels seems to have really hurt fuel economy. Considering diesels inherently produce less carbon monoxide and less hydrocarbon emissions than gas engines, and are much more efficient, the new regulations seem pretty extreme.

Diesels do produce particulate carbon (soot) and sulfur (much less with ULSD fuel), which people can see and smell, which I suppose is what has apparently motivated the uptick in regulation. To me, now doesn't seem to be a good time to add regulation to increase reliance on foreign oil.

Sorry about the off-topic rant...

 

It's tough to make very small engines work with EFI. Lots of problems with doing this. I see more down time in the shop. I won't be an early adopter, that's for sure.