BMW Service Bulletin Archive

noisy-upper-fork-spring-support-31-023-88-2326-988

( Service-InformationM otorcycle Problem: Cause: Remedy: Procedure: The fork spring support nut might work loose at the top fork bridge, causing an audible rattle. The fork tube radius is pressing into the top fork bridge. Should this condition occur, install a shim: Part no. 31 42 2 302 407 between the fork tube and top fork bridge to prevent the tubes from pressing into the casting. RT Models: Upper fork bridge Shim 31 42 2 302 407 Remove base shim 131 42 ! 452 448 Remove the storage compartment lids, Use a protective cover for the fuel tank. Remove the fork tube pinch bolts from the lower fork bridge. Loosen the handlebar clamp bolts. Remove the cable straps on the handlebars and the one on the right fork tube. Tilt the handlebars back as f~r as possible. Remove the large nut~ from tre right and left fork tube upper supports. Using a screwdriver in the pinch bolt slots, spread the lower bridge clamp open. Important: Warranty Status: Production Change: Very truly yours, Pull the fork tube down approximately 30mm. Install a shim – part no. 31 42 2 302 407 – in between the fork tube and top bridge. Push the fork tube back up into the top bridge. Install a shim in the opposite side using the same procedure. Torque both large nuts to 106 Nm (77 ft/lb). Reposition and tighten the handlebars. Replace and torque lower fork bridge pinch bolts. Replace the storage compartment lids. Remove the protective covering from the fuel tank. Replace the cable straps previously cut from the handlebar and right fork tube. The headlight holders on the basic R65 and RSO are secured between the upper and lower bridge with rubber rings. A base shim – part no. 31 42 l 452 448 – must be removed to reduce tension. ~ ~ Parts and Labor are reimbursable under the provisions of the BMWL imited Motorcycle Warranty of three (3) years/unlimited miles, using a normal Warranty Claim Form: Defect Code No.: 0000310500 Flat Rate Code : WT Flat Rate Units: R65/R80 Basic 12 FRU RSORT/RlOORS 13 FRU The fork tubes have been given a slight chamfer instead of a 1 arge radius. Now that the fork tube surface is large, the nut cannot work loose. BMWO F NORTAHM ERICAIN, C. c}__.1… ~ ~f;,:;7~~ Frank Stevens Richard Dampf National Service Manager National Technical Manager ( ( l_; (

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