OHC question

i went ot put another head on my bike today. this head is the one from the 98 bike. anyways. i got the bike all together and tried ot run it. i got a nice little ticking and it goes louder with rpms. is it possible that i can have either cam[intake or exhaust] one tooth off on the cam sprockets? my cam chain is held tension by a CCT. i swapped it out for another one thinking that was it but sitll had the noise. if i have to tear into the head how hard is it to remove the valve springs to get to the valves?. i have another head here that i can use the parts off. the head on hte bike has 19k on it and my orginal head has only 4200 miles on it.

any help would be greatly appreciated. ive never delt with OHC setups

siting there just playing with the trottle is has excellent response more then the other head and cam set up, idles nice.

come one some one who works on a OHC should be able to give me some ideas