Letter 1 (Year) + Letter 2 (Month) + 5 Digits (Unit Number) Example: IL02134 I = 2 (Year ending in 2, likely 1992 or 2002) L = 5 (May) 02134 = Production unit number.
On Revstar, Pacifica, and older SG models, the serial number is stamped or printed on the back of the headstock near the top nut.
Most modern (post-1970s) Yamaha guitars follow a letter-to-number coding system. The Letter-to-Number Letter Reference Chart yamaha guitar serial number search best
Yamaha USA and Yamaha Japan are surprisingly helpful.
A serial number means nothing without the model name. Look for stamps like "FG-180", "Pacifica 611", or "SG-2000". Knowing when a specific model was in production prevents you from confusing a 1984 guitar with a 1994 or 2004 model. Letter 1 (Year) + Letter 2 (Month) +
: Official documentation for dating electric guitars, including the SG and Pacifica series.
Finding the answer requires the Yamaha guitar serial number search strategy. Unfortunately, unlike Fender or Gibson, Yamaha serial numbers are notoriously inconsistent. There is no single "global decoder." However, with the right tools and knowledge, you can pin down the factory, year, and month of production with high accuracy. The Letter-to-Number Letter Reference Chart Yamaha USA and
Format: YY (Year) + MM (Month) + DD (Day) + UUUU (Unit Number) . Determining When a Guitar or Bass was Manufactured
Early models can be harder to date because they often used sequential numbering rather than date-encoded formats.
The search actively distrusts easy answers. It knows that a “000” prefix does not mean the same thing in 1968 as it does in 1988.
Since automated databases fail, here is the manual logic used by expert luthiers. Identify your era, then apply the formula.