I own a 1998 yz 400F the bike is amazing and has been very good to me. It is fast , powerful and very reliable. I love riding this big monster. Im looking to sell it though and try some of the newer technology yamaha has come out with and i also have a line on a 01' so i would liek to know what are the big changes are in these 2 bikes as of weight , power , reliablility , control and suspension. IS it a good idea to sell off my 98' and go for the 01' any opinions and answers are appreciated. Thanks.