Pictorial--2002 1150RT Spline lube
I've just finished lubing the splines on my 1150RT and I'll post 5 or so pics per day illustrating the same to help anyone out there wanting to pursue this endeavor. I'm assuming that you have already removed the tupperware from the bike and secured the front wheel to your centerstand. Also document the wire runs from every angle if you can because you will want to route everything as it was with the exception of the shift indicator wire and connector. You'll hear more on that below. There are other procedures I used by Awagnon, a member here that provides a great procedural and Grant at ADVRIDER who provides another pictorial on his GS. Powerman also provides a written procedural which I used, all found here:
Also, this link may assist you in disassembling the gear shift indicator connector so that it will pass easily through the tight space under the battery tray. This has been referred to as the most difficult and time consuming task of removing the transmission. Go to this link, and refer to page 10.