Roy,

You mention you have an MC16, if so those were 1987 model year motorcycles and not 1981. The manual that is available covers the MC16, 18 and 21 series NSR's. So if you do in fact have an MC16, the service manual should cover your needs.

The manual is the complete service manual and is not the owners/operators manual.

Welcome to the Forums and NSR's. Search the forums and the NSR-WORLD site, there is plenty of information on here and what isn't here feel free to ask questions, I am sure someone will have an answer.