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<blockquote data-quote="cleonard" data-source="post: 136434" data-attributes="member: 21"><p>There is a ton of stuff at the air resources board. Finding what you need isn't easy, but there are studies and of course the regulations. Start here <a href="http://www.arb.ca.gov/homepage.htm" target="_blank">http://www.arb.ca.gov/homepage.htm</a></p><p> </p><p>You will find that a large part of the emissions happen just sitting in a garage. These are known as evaporative emissions. The only reason a red sticker four stroke is not green is the missing evaporative system, and a small amount of emissions while the bike is running. Two strokes literally pump around 1/4 of the gas right out the tail pipe.</p><p> </p><p>I think that marketing is a big part as to why red sticker four strokes are sold. There is that perception that they are way faster than a compliant bike.</p></blockquote><p></p>
[QUOTE="cleonard, post: 136434, member: 21"] There is a ton of stuff at the air resources board. Finding what you need isn't easy, but there are studies and of course the regulations. Start here [url]http://www.arb.ca.gov/homepage.htm[/url] You will find that a large part of the emissions happen just sitting in a garage. These are known as evaporative emissions. The only reason a red sticker four stroke is not green is the missing evaporative system, and a small amount of emissions while the bike is running. Two strokes literally pump around 1/4 of the gas right out the tail pipe. I think that marketing is a big part as to why red sticker four strokes are sold. There is that perception that they are way faster than a compliant bike. [/QUOTE]
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