You did not specify front or rear (and I assume you are working on your 2000 Tourer). If so, you need to remove the front turn signal by removing the fork clamp (2 bolts) or the rear turn signal by removing the tail lamp assembly (I think the bolts are on the underside of the fender). Then you can unhook the electrical connections and remove the entire turn signal assembly (bolt 11 or 12 in the parts fiche).
To separate the chrome housing from the rubber mounting stem, you must pop off the lens and remove the mounting screws holding in the bulb holder (not shown in the parts fiche). The bulb holder includes a bracket that holds the chrome housing to the mounting stem. Because the wires are soldered to the bulb holder, you must remove the entire assembly to separate the chrome housing from the mounting stem.
If this is not clear, post a response and I will try to reply and include some photos.
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