Yamaha BWS CW50L User manual

1999 - 2002
MOTORCYCLE
SERVICE MANUAL
Model : CW50L, CW50M, CW50N, CW50P
4RW281972K00 *4RW281972K00*
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NOTICE
This manual was written by the MBK INDUSTRIE primarily foruse by YAMAHA dealers and their
qualified mechanics. It is not possibleto put an entire mechanic's education into one manual, so it is
assumed that persons using this book to performmaintenance and repairs on YAMAHA scooters
have a basic understanding ofthemechanical concepts and procedures inherent in scooter repair
technology. Without such knowledge, attempted repairs or service to this model may render it unfit to
useand/or unsafe.
MBK INDUSTRIE is continually striving to improve all models manufactured.Modifications and sig-
nificant changes in specifications or procedures will beforwarded to allAuthorized YAMAHAdealers
and will, where applicable, appear in future editions ofthis manual.
DOCUMENTATION TECHNIQUE
MBK INDUSTRIE
PARTICULARLY IMPORTANT INFORMATION
This material is distinguished by the following notation:
/_ The safetyAlert Symbol meansATTENTION! BECOMEALERT! YOUR
SAFETY IS INVOLVED!
r.IIY/-'1:I_11_[¢]1 Failure to follow WARNINGinstructions could result in severe injury or
death to the scooter operator, a bystander, ora person inspecting or
repairing thescooter.
CAUT}ONi:A CAUTION indicates special precautions that mustbe takento avoid
damage to the scooter.
NOTE: ANOTE provides key information to make procedures easier or clearer.
CW50
SERVICE MANUAL
©1997 by MBK INDUSTRIE
3st Edition, April 1997
All rights reserved. Any
reprinting or unauthorized use
without the written
)ermission of MBK INDUSTRIE
is expressly prohibited.
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HOW TO USE THIS MANUAL ® ® ILLUSTRATEDSYMBOLS
CONSTRUCTION OF THIS MANUAL
This manual consists of chapters for the main categories of subjects. (See <<illustratedsymbols). Illustrated symbols _to _are designed as
1st title (_) This is a chapter with its symbol on theupper right of each page. (_ L_ thumb tabs to indicate thechapter'snumber and
2nd tiUe Q ThistiUeappears on the upperof each page on theleft of the chaptersymbol. (For I=-I I _ content.
thechapter (<Periodicinspectionand adjustment)) the 3rd title appears.)I_
3rd title _) This is afinal title. _General information
z(t_Specifications
MANUAL FORMAT _ _ _ Periodic inspectionandadjustment
tionhas been compiledto provide themechanic with aneasy toread, handy reference that contains@Carburetion
comprehensive explanations of all disassembly, repair, assembly, and inspections._ Chassis
Aset of particularly importantprocedure (_)isplaced between a line of asterisks"*"witheach step _ ® _ Electrical
IMPORTANT FEATUREsPrecededby" """II :1 _)Troubleshooting
• Data and a special tools are framedinabox preceded by a relevant symbol®. _ _ Illustrated symbols _ to_are used toidentify
• An encircled numeral ® indicatesa part name,and anencircled alphabetical letter datafor an _
alignments mark Q, the others beingindicated by an alphabetical letterin a box_), the specifications appearing in the text.
•Acondition of a faulty component will precede an arrow symbol and the course of action required
thesymbol(_). ' _ Fillingfluid
@ i @ _ Lubricant
EXPLODED DIAGRAM <_ i_ @ Special tool
Eachchapter provides exploded diagrams are before each disassembly section for ease in identify-@Tightening
ing correct disassembly and assembly procedures. @Wear limit, clearance
@Engine speed
OVA
' _. :_-_.,_.._,';__..... :;"--L'..'._,_ _ _ _ Illustrated symbols _ to @ inthe exploded dia-
"",_ gramindicategrade of lubricantand location of
lubrication point.
_-.- _';"............. !_ .... _ _ _I @ I _ , _ Apply engineoil
__,_.,@ Apply gearoil
--i--|--_ _)Apply molybdenum disulfide oil
:,T_...:.:....C.__,_I_:;-_,..,_tF-.-"'_ _:_'_...... _1___ _ Apply wheel bearing grease
__--:5:,Apply lightweight lithium-soapbase
®_---- _--_1'¢_ ":_""';_"-I J _ _ @ grease
r/,_, j_| [E,;2_;c_E_-- _ _ @ Apply molybdenum disulfide grease
-_-_, :_"':'_-_ _ _ @Applylockingagent(THREADLOCK®)
@
Use new one
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INDEX
SPECIFICATIONS
PERIODIC INSPECTION I _I
AND ADJUSTMENT I'"sP
ENGINEOVERHAUL
CARBURETION
CHASSIS
ELECTRICAL
TROUBLESHOOTING
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