Minimus what is the Lowboy valve?

 

Another thing you can do for those of you who didn't know is get a puller that fits the Yamaha Warrior quads,,, same thing so check at the yamaha dealers. Mine came from the parts unlimited book but is made by K&L.

 

Sorry for the slow reply I missed the thread.
The lowboy is a filtered vent that goes on top of air box.
We use it for more air in higher elevations, with out rejetting. It actually works very well if you need more air.
A slide open and closes on top of air box.
Thunder products makes it. They are the same people that make dial-a-jet.
Many hate dial-a-jet, but most of that was because they needed to re-jet lean for it to work.