08 250r --- When riding and bike hits about 8500 RPM or so it feels like the bike is bogging down and is struggling to find gas or something. I can open the throttle further and almost like a pulsing but barely makes it 9500... any thoughts?
What is your gearing set up and what gear are you in when trying to break 9500 rpm? If your bike is completely stock and you are in 6th, this may be your problem. Try breaking 11000 rpm in a lower gear first.
mmmm, from experience with other bikes, the issues your describing sounds like it's starving for either gas, or air. If you're able to describe the sound a little better, or maybe take a video, I might be able to know which one....
You might want to check:
1.) fuel filter for being clogged
2.) fuel line pinched
3.) vacuum line pinched
4.) air box - rubber boots and such for a possible blockage (although doubtful)
5.) Maybe even a leaf blocking the snorkel (more probably)
But as Felix said, when diagnosing an issue, start with the basics, and as you eliminate variables it becomes that much easier to find the problem...