1. Locate the VIN: The VIN is usually found stamped on a metal plate on the motorcycle's frame, usually near the steering head or on the bike's frame near the engine.
2. Decode the VIN: The VIN is a 17-digit code consisting of numbers and letters. Each position in the VIN represents a specific piece of information, including the year of production.
3. Identify the 10th Digit: The 10th digit in the VIN is the one that indicates the year of production. Here are the specific digits and the corresponding year:
- 1: 2001
- 2: 2002
- 3: 2003
- 4: 2004
- 5: 2005
- 6: 2006
- 7: 2007
- 8: 2008
- 9: 2009
- A: 2010
- B: 2011
- C: 2012
- D: 2013
- E: 2014
- F: 2015
- G: 2016
- H: 2017
- J: 2018
- K: 2019
- L: 2020
- M: 2021
- N: 2022
- P: 2023
So, if the 10th digit in the VIN of a Yamaha TTR 90 is "1," it indicates that the bike was produced in 2001.
Remember that the VIN can also provide information about the model variant and country of origin, so it's important to consider other digits and characters in the VIN to get a complete understanding of the motorcycle's specifications and history.