View Single Post
Old 07-10-2022, 01:31 PM   #463 (permalink)
AKA - Jason
JSH's Avatar
Join Date: May 2009
Location: PDX
Posts: 3,172

Adventure Seeker - '04 Chevy Astro - Campervan
90 day: 17.3 mpg (US)
Thanks: 269
Thanked 1,831 Times in 1,243 Posts
Originally Posted by hayden55 View Post
Pretty much. The newer dr200 uses the carb they swapped to in the 90s and the dr125 from the 90s also uses the same carb. Looking at swapping to the I think 31mm carb off one of those from the 26mm carb that comes on this one. Supposedly nets me 14hp from the 12hp these come with. Newer DR200 is still grandfathered into whatever year it made its last change to the model. Judging by the looks its probably still grandfathered in around 1992.
That is not how US emission regulations work. There is no "grandfathering" of vehicles, every new vehicle must meet the emission requirements for the model year it is labeled

The reason we still have motorcycles with carbs in 2022 is that US motorcycle emission regulations haven't changed since 2010 and motorcycles smaller than 280cc have even more lenient regulations than larger bikes. Our emission regulations are a blend of Euro 1 and 2 depending on the pollutant.

That will likely change soon as CARB is in the process of adopting Euro V regulations.
  Reply With Quote