Just so ya know JT. The air filter is new, the plugs are new, the compression is fine. The valves were checked recently and the carbs synched at the same time. I ran a bunch of Sea Foam through it. I think the problem is the diaphrams. It wouldn't hurt to pull the carbs completely off the bike and and tear them down for a good cleaning, and then re-synch them. Kinda like the idle problem your bike has, it almost has to be in the carbs. Next question is which one do you wanna tackle first??? Yours or mine???? With colder weather coming...someday...this would be the perfect time to do them both. I have the service manual for mine. Lemme know when ya wanna get started........Don
I have a K&N filter for my bike so dont go buying one. I doubt you would anyway cause they are higher than a cats back..$170.00 from Yamaha/Kawasaki...