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clutch-21-003-83-2074-483
( Service-Informatio&n Group 21 CLUTCH RE: CLUTCH Dear Dealer: April 1983 Bulletin No.: 21 003 83 (2074) I i i-~. .. , Comprehensive modification has been\:i:t£-raduced in the clutch area: -~–:…_-~ ··””.,: ………. ~_”•1 • 1. te has been comp edesigned to e loads-.·-:-·.:-“‘”-‘-··” :·:,.-:·. • New part No.: 21 21 1 451 512. This clutch plate is interchangeable on all models since 1981. Please route and initial before filing 111 .. ‘. ……. __ p_ –··· •. – 2. Clutch carrier The clutch carrier also has been strengthened. New clutch carrier part No.: 21 21 1 451 511. Former…
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clutch-splines-21-003-82-2064-1282
( ( Service-Informatio0n Group 21 December Bulletin No.: CLUTCH SPLINES 1982 21 003 82 (2064) – For U.S.A. and Canada Only – RE: CLUTCH SPLINES Dear Dealer: To maintain constant efficient clutch action and longevity, the clutch and input shaft splines should be inspected, cleaned and lubricated during each service or at least once a year. Yours truly, i r;rH AMERICA, INC. ~Neas National Service Manager HN/cs Please route and initial before filing
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retrofitting-’81-clutch-21-002-81-2037-881
r ! Service-Informatio&n Group 21 August Bulletin No. Clutch 1981 21 002 81 (2037) – For U.S.A. and Canada Only – Subject: Fitting 1981 Clutch System On To Pre-1981 Models. Dear Dealer, This new clutch system can be installed on all 5 speed gearbox mode 1 s . ( / 6 & / 7 ) The only major obstacle you may encounter is the drilling and champhering of the clutch end of the crankshaft to accept the longer 1981 clutch rod if this essential modification is not evident. (as per enclosed drawing) • –· THE FOLLOWING PARTS· ·-ARE REQUIRED: QUANITY…
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clutch-grabbing-21-001-80-2008-180
( Service-Informatio&n Group 21 January I Bulletin No. Clutch 1980 ! 21 001 80(2008) – For U.S.A. and Canada O~ly – Subject: Sudden Clutch Engagement (Grabbing) On the occasion of a customer complaint of uncontrollable and sudden clutch engagement, we recommend checking the following: 1. Free and even movement of the clutch pushrod thrust bearing and. felt. Also insure bearing is properly lubricated. 2. Lubrication of the splines of the clutch disc.and transmission input _sh aft.~ 3. Correct· axial •:·shimming,. o~ :ft:!tlrans.mission .:· :,’:input ..s h”aft:=:~·’;P:roper spaciii’g”Ts;::::~o··”.,,.toO . 05mm ··’…c-?”‘·C··dfc i:,,.0too121T”nieas).1red,-cold. s·ee Rep_a_ir M,frtuii:i:.t:·for/’wo:rkp’ roc’edures’·:-:in:es taEf),.~llin_g •” proper s}?.immii_ig. .-·.:,:::~:f·:~-‘::~..…
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shifting-complaints-21-007-91-2462-691
n ( \ Service-Information Motorcycle BMW NA Service Department Group: 21 Clutch June 1991 21 007 91 (2462} For USA Only Shifting Complaints – Kl R Models Complaint: Cause: Remedy: Note: Clutch slips or is awkward to operate, especially when the motorcycle has reached operating temperature. If the clutch is properly adjusted and the clutch lever and cable operate smoothly, check the measurement of the piston at the back of the gearbox. Diameter max. 28. 7 mm The diameter of the piston must not exceed 28.7 nm (measured at room temperature). If this dimension is exceeded at any point, the…
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clutch-push-rod-boot-leak-21-006-89-2355-489
Service-InformationM otorcycle ; . ·l./~.•.:. -~,:· . ·-·r, Problem: Cause: Remedy: .Group: lt • i: • ,” . , •••• • C}~tch · 21 006 s~·; (2355) . ‘/.,~”‘-‘\ ‘ . :•f .1’ ·. ‘;\;!:.’ • Gearbox oil leaking from the clutch push rod boot at the adjustment bolt. Improper clutch adjustment. The coi 1 spring cannot put enough pressure against the boot’s sealing surface to contain the gear box oil when the clutch free-play is improperly adjusted. The greater the free-play, the further the sea 1 i ng surface arcs back from the base of the spring. Adjust the…
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clutch-spline-lubrication-21-004-84-2136-1284
Service-Information Motorcycle BMW of N.A. Service Department Group: 21 Clutch Lubrication of Clutch Splines December 1984 21 004 84 (2136) For USA and Canada Only We described in two (2) previous Service Informations [21 003 82 (2064)] and [21 003 83 (2074)] the importance of clutch spline lubrication. Test results where clutch splines are kept properly lubricated are extremely positive. Stiff shifting of the gearbox and stiffness of clutch operation can be directly attributed to dry or rusty clutch splines. Lubrication of this area will greatly prolong clutch life, and we recommend the following lubricants only for this purpose: Optimal…
