New_To_Honda

I just got my first Honda, a used 1998 Honda Accord LX 2.3L 4 cyl with only 60,000 miles for about 6600 USD. The car runs and looks good, transmission shift normal, idle a little high to me (around 900 to 1000 rpm). Only thing I may not like that much, that is when I shift from "P" or "N" to "R" more clunk noise & jerk then normal. Is that is normal for Honda Accord? or the signal of transmission problem? and what cause the clunk noise and jerk? Its not that significant but yes it is there. Shift from "P" or "N" to "D" no clunk noise and no jerk that I think is normal. I wonder any one have same problem and what is solution?