The topic earlier about banning all two strokes is not exactly correct. Typically until last year there were no 2 stroke motors that would meet 2006 regulations. Now with that said Bombardier has been implementing two stroke technology into there snowmobiles which is called SDI (Direct injection). This meets all new regulations and burns cleaner than allot of 4 strokes which some of those produced today don't meet 2006 emissions. For example from what I have been hearing, Yamaha's R1 motor that they put in there sleds won't pass unless it gets fuel injection.

So, if the manufactures wanted to put the capital into refining the 2-stroke technology they could

Chris

 

This whole emission regulation stuff is total bs. Look at the semi's rollin out of town, it seems to me that there is always a big black cloud of smoke above it but are they doing anything to make them run cleaner? absolutely not. If they were making everything have better emissions i would not have a problem with it but to me they are just targeting the atv and dirtbike manufacturers. damn government!

 

AMEN TO THAT

 

Well mahnster, you have a point, BUT you have to look at what we're dealing with too.

You have to remember that by nature, a diesel will produce more particulate matter (carbon or smoke, depending on how you look at it) than a gasoline engine will. The "smoke" that you're seeing is actually little particles of carbon that get blown out of the exhaust. They settle out and do not make it to the upper atmosphere like CO2 and other gasses that "Deplete the ozone layer". That's where you're seeing the big plumes of smoke puffing out of semi exhausts. There are emissions requirements on trucks too... I'm sure that as with anything else they have standards based on model year and such. The older the truck, the less restrictions placed on it.