anyone know how and where I can get a 1989 Testarosa service manual?
There isn't a specific "1989" WSM for the TR. The only TR WSM available is 330/84 which (IIRC) only has wiring schematics for the early, K-Jet TRs (although there are separate injection sections for both K-Jet and KE-Jet). If you need the schematics, you'd have to buy the appropriate TR Wiring Diagram Book for your version (although there's usually a decent ignition/injection schematic shown in your corresponding year/version TR OM). Also, the TR 587/90 SPC can be very helpful IMO. What are you trying to do? See this thread for more information regarding a TR "manual": http://ferrarichat.com/forum/showthread.php?t=26785 PS Welcome to FChat -- but please put at least your general location in your Profile.