2008 ninja 250 shifting problems
first off i'd like to introduce myself, I recently graduated from a motorcycle riding course and purchased a 08 ninja shortly after.
I have a 2008 ninja 250 and i've been having problems shifting up when the bike has warmed up.
after a couple of hours of riding, it gets harder to shift up. i'll try to shift and the rpms will just shoot up and i'll have to try again, or i'll shift, let the clutch lever out and the rpms will shoot for a second and then go back to normal (as if the clutch had not engaged completely).
i am pretty handy with tools, just no experience with motorbikes.
thanks in advance