You'll need to support the bike with great care. Bikes with centerstands make this task much easier, of course, but other models can be secured by running tie-down straps from the handlebars down to a neat hydraulic lift or, perhaps, to hooks mounted in the garage wall. (Renters, don't use the dining-room wall unless you're a plasterer by trade.) You'll need to lift the rear tire clear of the ground plus another three or four inches, and the whole bike needs to be quite stable as you'll be really rummaging around in there. An ordinary bottle jack will do the deed to lift the rear of the bike once the front is tied down.