What year was my John Deere 170 Tractor Made

[beefneck]

I have the Identifier number and I would like to know what year my tractor was built. The number on the plate is as follows: *M00170X015688* 170 Tractor. Any help would be greatly appreciated.
Also do you know where I would locate the engine serial number on my Kawasaki FC420V Motor that is in this tractor.

[joecdeere]

170 LAWN TRACTOR
1989 MODEL WITH 38" MOWER AND 14 H.P. ENGINE (S.N. M00170X595001-750000) *
1990 MODEL WITH 38" MOWER AND 14 H.P. ENGINE (S.N. M00170X010001-100000)

* NOTE: REGARD SERIAL NUMBERS FOR 1990 (010001-100000) HIGHER THAN SERIAL NUMBERS
FOR 1989 (595001-750000) WHEN USING MICROFICHE AND ORDERING PARTS.

s/n tag for motor was a sticker from Kawasaki on the fan housing, bad to fall off