My 05 wr450 starter sounds like it doesn't have enough torque to spin the motor. It just stops at the compression stroke. It has a new starter, battery, and solenoid. To be sure the starter and battery wasn't bad, I load checked the battery and took the starter apart and checked the commutator and insulation resistance to the specs. I've also tried jumping with a car battery and it still doesn't have enough to continuously turn over the motor. It used to spin the motor better than it does now. It seems to be getting worse. Can a faulty starter clutch cause added resistance and make it sound like the starter doesn't have enough torque to start it? I've also checked the decompression cam and it works properly. I haven't checked the valve gaps, but it starts up easily with a strong kick.