Anyway to tell year on motor, pre98 ?

[donmega]

I bought a kat 600 with a 750 motor and cant remember the year of the motor that was put in.

I want to buy the ignition advancer kit but it only looks like it covers the years 89-94 kat 750.

Was something changed after 94 ?

Is there anyway to find the aproximate year on my motor ? Like engine code, external changes, etc...

[md86]

Advancer should be the same . But using the engine # , there IS a way to tell the year . I don't remember where I saw that info , though . It MAY have been over on max-zuki .