Category: Service Bulletin

f~f~:;,!: •· n~.· ~•· ~/~;,: ;’!,’.t•.:· .!’ ‘IEST SPECTI’ICA’i’IONS: Cut in vol tae;e: 6.1.Reversc currcnt:2.0 RffiULATOSRE I”J’IKGS:, No load: 7 . -) Load (60:/): 6 .. 5 7.1 ‘?. 5 7.9 volts 7 .. 4 volts Load current: 11. 5 a.rr.p.s ,Resistor. “B”. (mour.ted .on generator): 3 .O Pt standstil’.L: Air ca:> upper contact points· .008 11 Air ga:? coil· to :u·,;,r,J;uro •. 03211 ::n operation: ‘.”‘ .016•’ . o48″ i\j_r e_ap coil to arr.1atur~ .. 1)o8 11 mini;”:’!.Um • ·I,;.,· ··l t,’.’Jiii:) t( .:’:,·_ ·”•• ‘ – ‘. ,;t?~;. l l:- .’ . . • ti•{• (::.,.I .. :~·…

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,,. () • STARTER MOTOR BATTE.RY • zum AnlaOrelais “‘·f:i • • . ,. ,, ‘ . . c·o· ·,-l.~€{1-, {Pa.,~ .,.:t.~~ ~ —- —-.-,—. ~- De. —————–. zum Anlasscr u. Battene 8+/30 DIODE BOARD O+ ————-: 11 Dio·dentrager I ALTERNATOR Dre hstromgenerator □-a I \ \ ‘i r~< l 1~l I li1 ~. ~ AC votAt° c1.~ &a.,t?te., ~l'Z!- t>.k€ Y’lA1 . (9 l

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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…

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(- Service-InformationM otorcycle ©BMW of N.A. Service Department Group: l 2 Engine Electric January, 1993 1201893 {2572) ~or USA Only Engine Difficult to Start, Temporarily Runs On Only One Cylinder – All Boxer Engines Problem: Remedy: Control Unit Under certain conditions (low temperature, poorly tuned or synchronized engine}, initially only one of the engines’ cylinders fire. 1 l The ignition coils have been modified 1 2 13 1 243 910 – old coil 1 2 13 1 244 426 – new coil 2) The timing control in the ignition control unit has been modified so that no ignition sparks are…

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( Service-InformationM otorcycle Group: ©BMW of N.A. Service Department 12 bgine Septeaber 1990 12 015 90 (2420) For USA Only Voltage legulator – I Model.JI Coaplaint: Reaedy: Rote: Warranty Status: Batteries discharged after short runs or running at low engine speeds. A regulator with a modified characteristic curve is available under part no. 12 32 1 244 737. The charging capacity of the generator is increased from engine speeds of 2300 rpm and upwards, thus improving the overall charging performance. Output voltage is now regulated at 14.5 V • 20 degrees c. and 14.3 V • JO degrees c. After…

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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…

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Service-InformationM otorcycle BMWNA Service Department : . ; ~ ., . . . l Diode Board – Complaint: Affected Models: ·cause: Remedy: 1. Diode boarc • solder melting. 2. Low bcttery – charge rate. 3. Generator light glow~ng at apprcxirnately half intensity, P,11 Prxer models from 1981 with electrostatic dip black coatir~ en ~1~ing chain cover. Increased resistanct at diode board ground points du~ to corrosior. of ground wire bolts, the deteriorc!ticr. of ground wires, e~ecPrb~ted by the insulating eff~cts of paint at ~ir~f beard mounting points on the ti~ir.g chain cover. Renovt diode board and scrape away pairt fr0~…

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C ( Service-InformationM otorcycle BMW of N.A. Service Department Group: 12 Engine – Electrical March 1985 12 009 85 (2156) For USA and Canada Only Diode Board — Boxer Models Complaint: Cause: Remedi: 1. Low battery 2. Generator light (red} on instrument cluster stays on Under some circumstances (usually on RS/RT fairing models) the soldering connections on the diode board melt. A new soldering material is now used on all diode boards. The new diode board is identified by a strip of black paint through the grey paint, or by black paint over the face of the board instead of…

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