Mine is rarely 'pristine', but if you start with a good wax of the painted sutff, and polish of the appropriate metal stuff.....a quick hose off, and the use of a product like Meguiars Quick Wax, and some WD40 on the engine cases...and other dull metal parts, (Rims, brake master cylinders, etc.) only take a minute or so, and cleans the old girl up quite a bit.
I live in an apartment complex, but there's a coin car wash a couple of blocks away. Usually I'll ride the bike down there, hose it off....ride home, wipe the water off....spray it with Quick Wax, (or Instant Detail spray whichever Ipicked up...since they look alike, and are almost the same product!) and in a couple of minutes, the bike is looking 90% 'cleaned up.