Year from engine number?

I know there have been some other posts about this, but no definitive answers. Does anyone know the secret decoder sequence to determine the year of my YZ400 motor with # H303E-006**

Thanks!

Someone has to know this. :cry:

If not, maybe I could find out by comparing the engine number with some known ones. Does anyone have an engine number similar to this (last four digits in the 0300-0900 range) and what is your model year? Thanks!

???

Call your local Yamaha dealer. They should be able to hook you up :cry:

I tried that already and called Yamaha too with no luck :cry:

But thanks for the suggestion!

the vin number is located on the head tube of the frame.

the tenth digit or letter is the year designator.

any reputable yamaha shop should be able to decode this.

if not call 406-652-0090 and i"ll fix you up.

the vin number is located on the head tube of the frame.

the tenth digit or letter is the year designator.

any reputable yamaha shop should be able to decode this.

if not call 406-652-0090 and i"ll fix you up.

I don't have a frame, just the motor. I called the number and talked to a nice guy, but he said that the number came back as invalid. But thanks for trying. No luck from two other yamaha shops or yamaha USA either. Any more suggestions?

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