engine problems

[honda965]

ok so since i bought my 300ex about 3 yrs ago i knew my timing was off,thats problem 1, but now when i ride it like"clicks" and rev's real high, i was lookin into gettin my engine rebuild and all that, how much do you think this would cost me? or could the clickin be something other than my engine something simple?

[tldPREDATORboy]

when my 250x whent it would have cost me 500 to do it all over again.but then i bored it and whent all after market.thats when my 396x was born.she halled ***.(tear)i still miss it.