Has anyone tried the MC Advantages Big Air carbs? www.psipowerinc.com. Very user friendly external tuning is advertised, as well as great atomization of the fuel. Sounds good to me.

 

They're not a pumper!

 

No not a pumper, but interesting non the less.
They fit em to MX bikes?
Clickers instead of jets

mmmm

More information required.

 

No fuel squirts, just pure fuel vapor. On their website, go to "motocross" division.

 

Who will be the guinea pig? Someone with deep pockets needs to step in and get one......

 

From the sounds of the applications list, they seem like a 2-smoke carb.

I think that some of the eldelbrok carbs didn't have jets either.

And I would like to see someone tune an aftermarket carb on a klx in 15 min.

 

Oh yea-, looks like they only have a 4 stroke harley carb, which I might try- and is how I got on this track. I emailed them and no plans for 250cc-650cc 4 stroke carbs because of fuel injection. Whats the difference in 2 and 4 stroke carbs besides the pulses and maybe richer, anyways?

 

there's no venturi on a 2 stroke carb

 

Don't think thats quite right.

The main differences are due to the relative difference in intake velocity.
2 strokes having a lower velocity.
So they are designed differently.
4 stroke carbs tend to be a bit more complex.

But no venturi?
Sorry, I think all carbs work on the venturi principal.