Bike Loses power at around 3k RPM
Hey guys, i'm having a really annoying problem. A couple weeks ago my bike started acting a little funny, after taking off from a stoplight I noticed it started loosing power. Sort of like if it falls out of second gear into neutral and jumps back in. It did it for maybe 2 miles and then decided it wanted to work again.
A few days passed, during which I tried replicating the problem, but without any luck. Until I started riding it away from my house it started again, but this time is hasn't stopped. At first I thought it was a clutch, so I replaced it, then I thought it might be the sparkplugs, or the ignition coil, so i replaced the sparkplugs and tested the spark, which was a purple blue colour, which is healthy.I have always used premium fuel. I flushed the coolant, I checked to see if the carb was dirty by taking out the little screw, and it seemed as clean as can be. I have always changed the oil every 2000 miles, chain is always lubricated and adjusted. Any Ideas? Here is what I have:
2010 Ninja 250r Special Edition 9700miles
adjusted cam chain tentioner
Thanks in advance, this is getting to be a real pain in my arse.