Thanks Scott
I've found this manual and it covers from 1973-1991 models.
JS300 - 300 Series
300SX - 300 Series
JS440 - 440 Series
JS550 - 550 Series
550SX - 550 Series
JS650 - 650 Series
JF650 - 650 Series
JB650 - 650 Series
650SX - 650 Series
Jetmate - 650 Series
X-2 - 650 Series
TS - 650 Series
SC - 650 Series