Yes that is exactly what it is doing. NO power loss, just that guh/guh/guh then instant power gain and smoothness as I open the throttle further. And just as you mentioned, when not under load it idles and revs through the range perfectly!
The jetting is all stock but I will try to find a richer pilot. I think I have the needle set right for the current jetting...or at least its set to where it performs the best.
Ok, I am going to stick with a 40:1 interceptor mix. I am still afraid to go much leaner than that.
1974 yamaha dt360 enduro. Rebuilt and now a decent running bike.
1981 Honda Trail 110...best bikes ever!!!!!
1982 Honda Trail 110 parts bikes
2002 Gas Gas ec 400FSE.