you should be able to get the serial number off the bike, it would be located on the front of your frame where steering is connected, (triple clamp) it will also give you the year of your bike, then look on your engine for a cc# and that will tell you how big the bike is. look to me it wouldn't be worth more than $300-$500
What dirt bike?
How can we tell, without a picture?
Early 80's Yamaha IT 175. maybe.
The invisible bike
no picture 01/30/15 @ 936 am PST
I think it is a very early model Yamaha TW200. I want it, where do you live.
This one sorry
