starter-problems-12-014-90-2400-390

Service-InformationM otorcycle ©BMW of N.A. Service Department Group: 12 Engine Electric March 1990 12 014 90 (2400) For USA Only Countershaft-type Starter – Valeo Technical Instruction for Flat-Twin Models Complaint: Causes: Remedies: Note: 1. Starter motor continues to run after start-up sequence and after ignition has been turned off. 2. Starter makes 11chatteri ng11 (usually when engine is cold). noises when engaging 1. If the engine’s wiring harness is laid incorrectly (on right-hand side between the frame and ignition coil), this can result in chafing and a short circuit to ground at tennina1 50. 2 – The effect of tolerances mechanism and vibration can This is a minor flaw onl.v, performance. within the engaging result in such noise. and does not restrict 1. If a comp1 a int is 1e dged, check the engine I s wiring harness and, if need be, exchange it and run it on the left-hand side of the frame. 2. In the event of very serious complaints, it may be necessary to exchange the starter motor. The countershaft-type starter can be retrofitted to a 1l flat-twin models· from model year 1977 on. The rear retaining plate is no longer required. On models as of 1985 (in the case of the R45 and R65, as of 1981 in the case of R80G/S and ST, from the start of production), it is essential that the relay be exchanged for the uprated version. Very truly yours, BMWof North America, Inc. Frank Stevens National Service Manager Motorcycle Group FS:jel/234.7 Please initial and route to the following before tiling Richard Dampf National Technical Manager Service I Parts J Sales I Warranty I Technicians (