YZF450 is Green Sticker and WR450 is RED!

8 replies to this topic
  • Poway Rider

Posted October 11, 2003 - 10:15 AM


Can someone explain why the YZF450 Quad is a Green Sticker ORV and the WR450 bike is RED? This makes no sense to me...

  • Indy_WR450

Posted October 11, 2003 - 10:34 AM


Green Sticker, Red sticker it all makes no sense to me they are just motorcycles! It is all bull! Who started this stuff anyway and whom are they trying to protect? :) :D :D

  • holeshot426

Posted October 13, 2003 - 10:39 AM


Because Grey Davis rides a YFZ 450.

  • simon@vic

Posted October 14, 2003 - 07:33 AM


dont quote me on this because im not sure.
usalay the quads get a green sticker in the USA because they have CV carbs stock {so you can ride in crazy angles with out the unit sputtering. cv carb= less emmissions= grenn sticker in the us.

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  • Jim_bo

Posted October 15, 2003 - 09:49 AM


I was looking on the CARB website one time and I read that in order to get a green sticker, a manufacturer had to certify that a bike meets emission standards AND he must certify that it will meet those standards for 5 years after sale. Additionally, if the vehicle falls out of standard, the manufacturer must fix the vehicle at no cost to the consumer.

I guess that Yamaha is more willing to stand behind the quads than the bikes.


  • galant2nr

Posted October 22, 2003 - 07:59 AM


Because Grey Davis rides a YFZ 450.

Yeah, but what does Arnold ride???

  • yamahasocal450

Posted October 22, 2003 - 12:24 PM


Because Grey Davis rides a YFZ 450.

Yeah, but what does Arnold ride???

arnold actually has a ktm duke, believe it or not :)

  • Math

Posted October 22, 2003 - 12:28 PM


According to Dirt Bike (October I think), the YFZ is even less corked up than the WR is. Difficult to understand why the quad would be green and not the WR :).

  • DesertChris

Posted October 22, 2003 - 12:43 PM


The quad has a baffled crankcase vent that is directed into the intake steam, and I am sure there is a few other small details.


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