quickly

hey lads need your help again. i'm just after a new rebound tap. in my old parts book it part no 4860.0025 the thread was stripped on the post & the delta shims were doing the hoola hoop thing. i re-threaded it to a 5mm down from a 6mm. guess what happened ...not enough meat on the hollow...

Hi! First I have to say that I'm complete newbie with fourstrokes.. I Just bought an 2006 Fe450 it works very nicely exept engine stops when opening throttle quickly. I opened and cleaned the acceleration pump from carburator but that did not solve problem. Where to go next or what screw...