OK guys, I know I started this thread a long time ago. The reason I didn't report how well this valve works is that I purchased a 2000 model carb to replace my aging 1994 carb. I didn't want to put the bike back together and run it on the old carb.
Anyway the guy on eBay took my money and never shipped the carb. Eventually I had to file a complaint with eBay. They took the guy off eBay and finally reimbursed my credit card. I would have rather had the carb. The only thing really wrong with my 94 carb is the slide is starting to loose it's finish.
Two day's ago I put the bike back to together with my old carb. It has been sitting for about 5 months. Turned the fuel on pulled my decompression valve and kicked it about 4 times and it started up. After I got the idle dialed in I took it for a spin and with the newly finished cylinder and piston the bike has more torque than ever. When I rev the bike while standing next to it the back end actually lifts up a bit then settles down.
Back to the decompression valve. Yes it kicks over just a bit harder than my KDX220. So I would say it kicks over like a 125. It also starts up quicker. It seems that with the compression valve pulled and giving it a full kick it spins the crank faster and therefore starts quicker and easier. I love it.
Next comes the Revloc auto-clutch. The only issue I had with an autoclutch before was you can't compression start the bike. Now that the bike kicks over so easy, I'm not worried about compression starts.