Sounds like there are several ways to convert these engines to CL. If I can't find what I'm looking for I will work on something else - a fixed barrel, or an insert, but I'm posting a picture of what I really want.

Specifically, I want the aluminum block shown here. I have the venturi and needle valve.

Let me know if anyone has one (or can make one??)

Thanks again

Glenn

I believe the CL version of the Saito engines (if you can find one) uses the stock Carb body with a fixed Barrel and a removable insert. That's only 2 venturi sizes. I want to use an OS FP venturi (maybe the .25 size) and then I can make one if I need a special size. That's why I really like the Pat Johnston design.

Been watching this thread for some time and decided it needed my view and opinion, considering I have probably spent more time developing and competing with Saito 4 stroke's than anyone (except for maybe Z-Man and Beringer).

Forget the UHP intake, good idea at the time and what I started with but trying to come up with an insert that will work is a big crap shoot. I ended up drilling and taping the side of an insert so I could adjust the choke area with a screw. It sorta worked but was allot more difficult to tune than my carb mod. Also that OS needle isn't fine enough and is sloppy enough you will have run issues. When you can't get two flights with consistent engine runs you will understand.
 
The Beringer intake is one of the designs I looked at in coming up with my Saito intake mod. That intake isn't easy to make, takes many machine operations and four common machine processes, turning, drilling, milling and taping. My mod can be done with a drill press if that is all you have to work with.

Quit trying to reinvent the wheel, either contact Jim Lee in the vendors section and have him do the mod on your Saito carb or hog an insert out with your drill press and follow the instructions in the above link to my carb.

I promise you, you will not be disappointed.