Not to hijack, but having similar issues. Figured it fit best here.
On my 2000k mile run recently, I noticed some intermittent hesitation/decel while at steady throttle. Pitch of the engine doesn't change. Only seems to happen after riding a bit. Couple days ago, heard some popping on decel. Not crazy, but there. Before the popping, I assumed it was a fuel delivery issue and changed stock petcock to EM. Tank vent checked and new fuel line isn't kinked. So diaphragm first?
Guessing I'm after a carb rebuild with diaphragm? Have seriously considered a KLX kit, but I'm not power hungry on this bike. I dig the range 45-50 mpg gets me.
Sounds like a lawnmower, Rides like a paint shaker!
I got 99 problems but fuel injection, 6th gear or a 2nd cylinder ain't 1!
My wife: "I didn't know if that was you coming home, or a neighbor mowing"