I was riding my 1990 ninja 600 d the other day when i pulled up to a stop sign and heard clicking. As i started to ride it the noise got louder and louder. I put it in the shop and they said it was my cam shaft tensioner. They replaced the little tensioner thing and now it still runs bad. It only wants to run on the choke. Is it possible it jumped time and thats why it runs bad or could it be one of my valves is to loose or seized and thats what causes it to run like crap..?? it still has clicking noise and it gets louder with increased throttle. It now dies when i try to let the clutch out to ride it.