by Back2-2 » Sat Jan 02, 2021 7:51 am
You did not state which bike size and model you are asking about. Also the altitude you are riding at in relation to your jetting you gave. Good fuel, proper jetting and there should be no hesitation or bog. So Yes, it sounds like your primary circuit needs some attention. Also wiring the accelerator lever "Tye wrap mod" will take that initial slack out of fast movement of the throttle.
If you are asking about a 450 I suspect you are running lean by your jets stated but that is only a guess without further info.
One quick thing to try is take the fuel screw to 3 to 3 1/2 turns out [CCW] and see what that does for you. If that improves the 0-1/8 throttle you need to go larger on the PJ.
Neil
Black Hills of SD
Life without Motorcycles would just be boring, really boring
Honda 450X. Yamaha Tracer GT900. HD Fat Boy. Triumph Bonneville. Yamaha Majesty 400. Yamaha Grizzly. Yamaha Wolverine. Yamaha TW200