Anyone have experience with Super B carbs?

[HollywoodMX]

I have one that's pretty tricked out but I'm a bit lost to understand some of these tricks.

First it has 3 Thunder jets. 125 135 145 jets respectively. Then it has non original jet like a air jet in the side. I think there is an 80 in that.

Then it has a fuel outlet on the side. Originally I thought it was the bowl feed but that's apparently the one on the bottom so I'm guessing the one on the side is a return? Or a big ass vaccum. It's 5/16ths.

Then there is a tapped hole right in the top of pilot. I'm guessing there is a screw or jet meant to be in there? To tweak the pilot?

I'm running a 26 pilot and a 168 main and it's way to rich. I think cause I'm pulling way more vacuum than a Harley. I'm actually worried about that I will pull to much vacuum needing leaner jets that what is available now. I have a an assortment of jets for it. I was shooting flames with a 172 main.

I also have an accelerator pump kit to install on it as well. My SC needs a few pumps of throttle to start and the super b by default doesn't squirt fuel on throttle opening I noticed which is a fail. I'm thinking the accelerator pump fixes this problem.

 

[HollywoodMX]

Ok I'm helping myself here. The air bleed on the side effects the air going into the emulation tube thus delaying the rpm of the main jet.

The Thunder jets use mikuni jets.

I see no purpose of the tapered hole on the pilot so it will get plugged.

The last curiosity is the fuel exit on the side.

 

[jimmer]

www.Dragbike.com Lots of turbo dragracers use the S&S carbs.You can get your questions answered there.

 

[HollywoodMX]

www.Dragbike.com Lots of turbo dragracers use the S&S carbs.You can get your questions answered there.

Thanks man, I will look there.

 

[HollywoodMX]

Again helping myself here. The big 90 degree nipple on the side is a vent tube cause Harley's have that vent to the air cleaner thing..

Funny thing is I had it plugged..cause I thought it was a fuel return Lol.