Look at the vin tag on the steering head tube of the frame, it should have the year stamped on it.
look on the front on the frame you will see a vin numberwrite that down and call a dirt bike mechanic or call suzuki
what year is my dr650 serial No sp45a101000
rm125 frame number 70121 whay year
There is not information on the year of a bike with the frame number 550 01219.
3RB-012812 is not a frame number for a 250 Yamaha dirt bike; it's a motor number. To find out the model year and frame, you need the frame number.
your motor is a 1989 suzuki rm250 the 1988 rm250 motor started with j106 the 1989 rmX250 motor # started with j111
The 10th digit is a 1 so 2001 would be the year of your Suzuki.
The production year of Yamaha xS400 frame number 16Y-011054 is manufactured in 1980.
what year is your yamaha vx with frame and engine number of 3JC-2186-01
klf 300-frame number LF300c-604814
The frame number can usually be found on the underside of the bottom bracket. With that you might be able to track down the year-if you find someone who can tell you how to decode the frame number.