WYL Carburetor Adjustments

I adjusted the Tiny D screw for the fuel air mixture I got a glimpse at what this could possible run like. I turned it 4 full turns from the most closed position to get this to run that is screwed all the way in. I was able to place it in 1/2 choke and it idled a little faster. I got it to blow at a higher velocity but nothing like it is suppose to.

Any suggestions before I drill the main get hole a little wider? When I hit the throttle it still bogged down and shut off.

I have a very similar issue. Did you get anywhere?