Found the service manual for a KB100 RTZ while doign some cleaning up. I see that there are no manuals available online so I will scan the whole thing as a PDF one day. Till then this should suffice.
I must clarify this is not my bike manual, I bought this from the used books market . I used to have a later 'de-badged' Bajaj RTZ and its manual was very skimpy in its coverage. The older KB manuals were pretty good.