I just purchased this great condition 99 klr 250 it had been sitting 3 or 4 months so I had carb cleaned valves adjusted and gas tank cleaned when I go to start it sometimes won't kick like it catches gets so stuck it won't kick I let off and kick again it does fine and starts I know these are normal noisy motors but it has a bad clacking sound bike runs and drives and shifts amazing! Only 1700 miles on this bike ! Will a bad kacr cause this? Or what would?