Hello I am needing help with my 2012 Yamaha yz450f. I recently purchased the bike needing work. I replaced the cylinder and piston and timing chain. Fired up and runs awesome. I than go and test drive it and notice it just doesn't have the power a 450 should. I can't engage the bike into neutral while the bike is running. I removed clutch and noticed that basket has some fairy deep groves. The steel plates appear to be decent and not burnt same as friction. Could the clutch be hanging up and not allowing me to fully engage hence the power issue?