Has anyone seen this dial-a-jet contraption? Anyone have an idea how it works beyond the description on the site?

 

We have installed them on a Raptor it works great. Also on 2 warriors. Yamahas are extremely touchy on jetting at altitude and the Raptor runs great everywhere from 4000-11000 ft here. Everyone with a Raptor needs a set what a pain in the a$$ to jet.

 

Are they hard to install?

 

Depends on the app. The Raptor was a pain but not much worse than normal jetting. Most othe apps should take less than 1 hour.

 

my friend runs them on his raptor, but as mentioned above changing jets on a raptor isn't easy, they have to take a lot of there plastic off. the ds is a lot easier to re jet, i'm done before he gets his front plastic off. the other thing is jets cost about 3 to 4 for the ds so for the price you can buy a lot of jets.

 

If you do alot of riding at a wide range of elevations then I would recomend a kit.