So today I got out and got some ride time in. I'm really impressed with the performance of this carburetor over the stock pz30. Performance throughout all throttle positions is so smooth. I found the biggest improvement is in the lower end power. I got out on the highway and just cracked it back. I found it was falling off in 4th and 5th if I went past 3/4 throttle. No problems 1st through 3rd. Was still getting 74mph. So I turned around and back to the house to swap out to a 125 main. Went out and made another run on the highway. Now it runs perfect through all gears. It got a little windy but still manage to get to 77mph. I think it will get 80 or close to it. Just too fast and windy for the knobbies.
here's a few pictures comparing the pz30 to the pwk30. The pwk30 is no where as restrictive as the pz30. Plus jets swap is so much quicker and easier
Loosen the clamp and the carburetor comes right out. No fighting nuts with open end wrenches.