BMW Motorcycle R 1100 RS – Rear Frame

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Filed Under (BMW) by admin on 16-11-2010

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Complaint: On R 1100 RS models (above serial numbers only) with luggage racks, a crack may develop in the rear section of the frame (see drawing) if a load exceeding the permitted 11 lb. is applied to the luggage rack, or if a top case is used. Remedy: Please check all R 1100 RS models (in serial number range above) which pass through your workshops for cracks on the rear section of the frame. Cracked frames should be exchanged with the new part listed below. The new rear frame has been reinforced to use with larger loads. New Part: 46 51 2 320 698 (reinforced rear frame) Caution: Since the introduction of the rear luggage grid to accommodate the 33 liter removable top box, it is vital that this luggage grid and 33 liter top box not be installed on any of the above unless the reinforced rear frame is fitted, or a frame reinforcement kit is installed (a kit will be made available in the future to reinforce the rear frame of the above models, in order to install the 33 liter top box). The new reinforced rear frame (46 51 2 320 698) has been fitted since May 1995 production. Use of the new rear section of frame on an earlier production bike requires a new rear section of the dual seat as follows: Parts 52 53 2 325 121 Flash Green 52 53 2 325 122 Red Needed: 52 53 2 325 123 Black 52 53 2 325 120 Light Gray 52 53 2 325 211 Anthracite Warranty: Please explain to your customers that the top case can only be installed on bikes with reinforced rear frames. Claims for frame cracks which result from operation with large loads beyond specification will not be honored under the terms of the Limited Motorcycle Warranty.

BMW Motorcycle R1100/ 850 Model Throttle Cables

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Filed Under (BMW) by admin on 16-11-2010

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Problem: Engine surges at constant speed. Difficult to adjust and balance the left and right throttle bodies. Cause: Differences in opening and closing of the throttle butterflies caused by friction in the throttle cable. Remedy: 1. Fit a low friction throttle cable. 2. Check the following to ensure optimum results: Ignition timing Spark plugs (FR 6DDC) type / condition (reference SI 2739 in Main Group 12) Valve clearances Correct Cat. code plug Check throttle housing inlet manifold for air leaks 3. Synchronize the throttle butterflies as illustrated on the attached procedure. Note: Make sure there are no obstructions in the vacuum stub pipe prior to connecting the Synchro tool. Parts: 32 73 1 342 149 R 1100 RS 32 73 1 342 150 R 1100 RT, R, & GS Information: The Low friction throttle cable was introduced into series production as follows: R 1100 RS from 0312537 onwards (06/95 prod.) R 1100 GS from 0381479 onwards (06/95 prod.) R 1100 R from 6379238 onwards (06/95 prod.) R1100RT from 0440499 onwards (06/95 prod.) R 850 from the start of production Warranty: The BMW Motorcycle Limited Warranty will cover the replacement of the throttle cable for motorcycles in the affected VIN range. Authorization is not Required . File a warranty claim, using the following information: