When your gear position sensor fails 200 miles from the nearest dealer, the trouble-shooting tree in the workshop manual is your lifeline. It walks you from "symptom" to "diagnosis" to "limp-home solution." Avoid the $5 CD-ROMs on eBay with scanned, blurry pages. Get the genuine BMW R 1250 GS Repair Manual from sources like Bentley Publishers , Haynes (if they have released their version), or directly from BMW Motorrad’s digital portal (usually a subscription or a one-time download).

If you own a GS, you know the dealer service rates are... ambitious . And while YouTube is full of helpful vloggers fixing their bikes in a dusty shed, there is only one source of truth for the big boxer:

Here is why this PDF (or printed tome) is the best farkle you will ever buy. That video titled “Easy 12k Service on R1250GS” might be great. But did that rider use the exact grade of oil for the ShiftCam system? Did they torque the axle pinch bolts to 19 Nm or 22 Nm? The difference is a cracked fork leg.