hi, i'm 5'0" and i weigh about 110lbs and i'm looking to do trail riding and also going pretty fast in fields and stuff. but anyway what would you say i get a 1998 KX100 or a 1999 RM80 with a new topend?  

First let me say welcome to the board. 2nd i'd go with the KX 100.  

can you tell me why i should go with the KX100??? people tell me that yamaha is the best and i agree, but they also say Kawasaki is the slowest and least reliable. but how can that be look at the top pros out there Stewart,Villopoto,Townley they are the best in the world right now and they are riding Kawi's. can you give me an experts advice on which brand is best???
thanks.

*** do any of you have AOL instant messenger screen names??? lol  

ive got AOL IM. but i doubt u'd want my advice. LOL  

Well, Here you go...Yamaha is the best 2 stroke made!  And the best of the 4 strokes in the top 3. YOU are looking for a trail bike. The KX is really good. The YZ 85 is better. But you asked what would be good for YOU at this point. Right? Now if you want a 4 stroke..go sit and investigate both and YOU dicide whats best!  

well, the pros are riding fricking works bikes, not at all comparable to this 98 Kx100. i'd say get whatever you can get a better deal on and it's still a good clean bike that hasn't been abused.  

what are some questions i should ask the owner of the bike??? i was thinking...
when was the engine last rebuilt?
how was it maintained when you had it?
are you the first owner of this bike?

stuff like that  

yeah, heres some more:

used bike guide

checklist  

great links bubba. good info right thur.  

would you guys say a 1998 Kawasaki KX100 for $900.00 is a good deal? and it also needs new tires so thats why he lowered the price 100.00 bucks.  

depends on how good of shape the rest of it is. i have a 99 and we could probably get $1100 for it.  

the bike is my "avatar" the engine looks good, but how much can you really tell from this view. and also why is the header pipe on this side of the bike all the other two-strokes have them on the right side. Will it make any difference at all?  

no, it doesn't make any real difference, i guess they just wanted to be unique with the pipe or something. a lot of people just buy a new set of plastics and make it look nice when the engine is crappy on the inside and the parts are all worn out.  

so what do you recommend? I go down there and test ride it and look it over pretty thoroughly?  

yeah, you don't want to get ripped off. Yzwoods and twistit can help here. it has to be clean.