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MBN!I'm in Vancouver and several other members are here in the Portland area and north in Puget Sound.
I believe the serial number will lead you to the year. I had Goldenchild of Cloud Nine tune my car on the dyno at Loynings in Portland. Goldenchild is on Hayabusa.org. Call Daniel (Goldenchild) (503) 663-3278.
If you go the dyno route plan to spend 800 - 1000, maybe a bit more.