Dunno bout your forks, it's different from mine but mines a 90 model.
You should be able to check what year your bike is by looking up the frame/engine numbers in the manual, can with my Clymer manual anyway.
You can also write a letter to Kawasaki motors UK and they will send one back telling you what year it is which can be handy if your putting the bike on the road
Be aware that year of manifacture can be before the model year though.
For instance, mine was manifactured in 89 but is a 90 model.
Good luck