Link to your model in the "owner info" section on the Kawasaki USA website: http://www.kawasaki.com/kawasakinew/accessories2/PCCatItems.aspx?intCatalogID=1&intCatalogType=4&ProductTypeID=63&ModelMarketingID=221&ModelYear=1998&ModelCode=VN800B3
Click on "owner and service manuals"
Click on "download manual"
Check pp. 61-62 for the oil level and pp. 68-69 for the coolant level (both in the "maintenance and adjustment" section - unfortunately they break down each manual into more than a dozen individual PDF files). BUT let's praise them for offering many manuals for free on their website - the other manufacturers should do that too!