This quick reference guide will assist
you in locating a desired topic or procedure.
•Bend the pages back to match the
black tab of the desired chapter number with the black tab on the edge at
each table of contents page.
•Refer to the sectional table of contents
for the exact pages to locate the specific topic required.
Crankcase/Crankshaft9j
Wheels/Tires10j
Final Drive11j
Brakes12j
Suspension13j
Steering14j
Frame15j
Electrical System16j
Appendix17j
J300
J300ABS
Motorcycle
ServiceManual
All rights reserved.No parts of this publication may be reproduced, stored in a retrieval system, or
transmitted in any form or by any means, electronic mechanical photocopying, recording or otherwise,
without the prior written permission of Quality Assurance Division/Motorcycle & Engine Company/Kawasaki
Heavy Industries, Ltd., Japan.
No liability can be accepted for any inaccuracies or omissions in this publication, although every possible
care has been taken to make it as complete and accurate as possible.
The right is reserved to make changes at any time without prior notice and without incurring an obligation
to make such changes to products manufactured previously. See your Motorcycle dealer for the latest
information on product improvements incorporated after this publication.
All information contained in this publication is based on the latest product information available at the time
of publication. Illustrations and photographs in this publication are intended for reference use only and may
not depict actual model component parts.
This manual is designed primarily for use by
trained mechanics in a properly equipped shop.
However, it contains enough detail and basic information to make it useful to the owner who desires to perform his own basic maintenance and
repair work. A basic knowledge of mechanics,
the proper use of tools, and workshop procedures must be understood in order to carry out
maintenance and repair satisfactorily. Whenever the owner has insufficient experience or
doubts his ability to do the work, all adjustments, maintenance, and repair should be carried out only by qualified mechanics.
In order to perform the work efficiently and
to avoid costly mistakes, read the text, thoroughly familiarize yourself with the procedures
before starting work, and then do the work carefully in a clean area. Whenever special tools or
equipment are specified, do not use makeshift
tools or equipment. Precision measurements
can only be made if the proper instruments are
used, and the use of substitute tools may adversely affect safe operation.
For the duration of the warranty period,
we recommend that all repairs and scheduled
maintenance be performed in accordance with
this service manual. Any owner maintenance or
repair procedure not performed in accordance
with this manual may void the warranty.
To get the longest life out of your vehicle.
Follow the Periodic Maintenance Chart in the
•
Service Manual.
Be alert for problems and non-scheduled
•
maintenance.
Use proper tools and genuine Kawasaki Mo-
•
torcycle parts.Special tools, gauges, and
testers that are necessary when servicing
Kawasaki motorcycles are introduced by the
Service Manual. Genuine parts provided as
spare parts are listed in the Parts Catalog.
Follow the procedures in this manual care-
•
fully. Don’t take shortcuts.
Remember to keep complete records of main-
•
tenance and repair with dates and any new
parts installed.
How to Use This Manual
In this manual, the product is divided into
its major systems and these systems make up
the manual’s chapters. The Quick Reference
Guide shows you all of the product’s system
and assists in locating their chapters.Each
chapter in turn has its own comprehensive Table of Contents.
For example, if you want ignition coil information, use the Quick Reference Guide to locate
the Electrical System chapter. Then, use the
Table of Contents on the first page of the chapter to find the Ignition Coil section.
Whenever you see symbols, heed their instructions!Always follow safe operating and
maintenance practices.
DANGER
DANGER indicates a hazardous situa-
tion which, if not avoided, will result in
death or serious injury.
WARNING
WARNING indicates a hazardous situa-
tion which, if not avoided, could result
in death or serious injury.
NOTICE
NOTICE is used to address practices not
related to personal injury.
This manual contains four more symbols
which will help you distinguish different types
of information.
NOTE
NOTE indicates information that may help
○
or g uide you in the operation or service of
the vehicle.
Indicates a procedural step or work to be
•
done.
Indicates a procedural sub-step or how to do
the work of the procedural step it follows. It
also precedes the text of a NOTE.
Indicates a conditional step or what action to
take based on the results of the test or inspec-
tion in the procedural step or sub-step it fol-
lows.
In most chapters an exploded view illustration
of the system components follows the Table of
Contents. In these illustrations you will find the
instructions indicating which parts require specified tightening torque, oil, grease or a locking
agent during assembly.
GENERAL INFORMATION 1-1
General Information
Table of Contents
Before Servicing .....................................................................................................................1-2
Model Identification.................................................................................................................1-7
General Specifications............................................................................................................1-9
Unit Conversion Table ............................................................................................................1-11
1
1-2 GENERAL INFORMATION
Before Servicing
Before starting to perform an inspection service or carry out a disassembly and reassembly operation on a motorcycle, read the precautions given below. To facilitate actual operations, notes, illustrations, photographs, cautions, and detailed descriptions have been included in each chapter wherever
necessary. This section explains the items that require particular attention during the removal and
reinstallation or disassembly and reassembly of general parts.
Especially note the following.
Battery Ground
Before completing any service on the motorcycle, disconnect the battery cables from the battery to prevent the engine from accidentally turning over. Disconnect the ground
cable (–) first and then the positive (+). When completed
with the service, first connect the positive (+) cable to the
positive (+) terminal of the battery then the negative (–) cable to the negative terminal.
Edges of Parts
Lift large or heavy parts wearing gloves to prevent injury
from possible sharp edges on the parts.
Solvent
Use a high flash-point solvent when cleaning parts. High
flash-point solvent should be used according to directions
of the solvent manufacturer.
Cleaning Vehicle before Disassembly
Clean the vehicle thoroughly before disassembly. Dirt or
other foreign materials entering into sealed areas during vehicle disassembly can cause excessive wear and decrease
performance of the vehicle.
Before Servicing
Arrangement and Cleaning of Removed Parts
Disassembled parts are easy to confuse. Arrange the
parts according to the order the parts were disassembled
and clean the parts in order prior to assembly.
Storage of Remov ed Parts
After all the parts including subassembly parts have been
cleaned, store the parts in a clean area. Put a clean cloth
or plastic sheet over the parts to protect from any foreign
materials that may collect before re-assembly.
GENERAL INFORMATION 1-3
Inspection
Reuse of worn or damaged parts may lead to serious accident. Visually inspect removed parts for corrosion, discoloration, or other damage. Refer to the appropriate sections
of this manual for service limits on individual parts. Replace
the parts if any damage has been found or if the part is beyond its service limit.
Replacement Parts
Replacement Parts must be KAWASAKI genuine or
recommended by KAWASAKI. Gaskets, O-rings, oil seals,
grease seals, circlips, cotter pins or self-locking nuts must
be replaced with new ones whenever disassembled.
Assembly Order
In most cases assembly order is the reverse of disassembly, however, if assembly order is provided in this Service
Manual, follow the procedures given.
1-4 GENERAL INFORMATION
Before Servicing
Tightening Sequence
Generally, when installing a part with several bolts, nuts,
or screws, start them all in their holes and tighten them to
a snug fit. Then tighten them according to the specified sequence to prevent case warpage or deformation which can
lead to malfunction. Conversely when loosening the bolts,
nuts, or screws, first loosen all of them by about a quarter turn and then remove them. If the specified tightening
sequence is not indicated, tighten the fasteners alternating
diagonally.
Tightening Torque
Incorrect torque applied to a bolt, nut, or screw may
lead to serious damage. Tighten fasteners to the specified
torque using a good quality torque wrench.Often, the
tightening sequence is followed twice-initial tightening and
final tightening with torque wrench.
All of the tightening torque values are for use with dry,
solvent - cleaned threads unless otherwise indicated. If a
fastener which should have dry, clean threads gets contaminated with lubricant, etc., applying even the specified torque
could damage it.
Force
Use common sense during disassembly and assembly,
excessive force can cause expensive or hard to repair damage. When necessary, remove screws that have a non
-permanent locking agent applied using an impact driver.
Use a plastic-faced mallet whenever tapping is necessary.
Gasket, O-ring
Hardening, shrinkage, or damage of both gaskets and
O-rings after disassembly can reduce sealing performance.
Remove old gaskets and clean the sealing surfaces thoroughly so that no gasket material or other material remains.
Install the new gaskets and replace the used O-rings when
re-assembling.
Liquid Gasket, Non-permanent Locking Agent
For applications thatrequire Liquid Gasketor a
Non-permanent Locking Agent, c lean the surfaces so
that no oil residue remains before applying liquid gasket or
non-permanent locking agent. Do not apply them excessively. Excessive application can clog oil passages and
cause serious damage.
Before Servicing
Press
For items such as bearings or oil seals that must be
pressed into place, apply small amount of oil to the contact area. Be sure to maintain proper alignment and use
smooth movements when installing.
Ball Bearing and Needle Bearing
Do not remove pressed ball or needle unless removal is
absolutely necessary. Replace with new ones whenever
removed. Press bearings with the manufacturer and size
marks facing out. Press the bearing into place by putting
pressure on the correct bearing race as shown.
Pressing the incorrect race can cause pressure between
the i nner and outer race and result in bearing damage.
GENERAL INFORMATION 1-5
Oil Seal, Grease Seal
Do not remove pressed oil or grease seals unless removal
is necessary. Replace with new ones whenever removed.
Press new oil seals with manufacture and size marks facing
out. Make sure the seal is aligned properly when installing.
Apply specified grease to the lip of seal before installing
the seal.
Circlips, Cotter Pins
Replace the circlips or cotter pins that were removed with
new ones. Take care not to open the clip excessively when
installing to prevent deformation.
1-6 GENERAL INFORMATION
Before Servicing
Lubrication
It is important to lubricate rotating or sliding parts during
assembly to minimize wear during initial operation. Lubrication points are called out throughout this manual, apply
the specific oil or grease as specified.
Direction of Engine Rotation
When rotating the crankshaft by hand, the free play
amount of rotating direction will affect the adjustment. Rotate the crankshaft to positive direction (clockwise viewed
from output side).
Electrical Leads
A two-color lead is identified first by the primary color and
then the stripe color. Unless instructed otherwise, electrical
leads must be connected to those of the same color.
Instrument
Use a meter that has enough accuracy for an accurate
measurement. Read the manufacture’s instructions thoroughly before using the meter. Incorrect values may lead
to improper adjustments.
Model Identification
SC300AE Left Side View
GENERAL INFORMATION 1-7
SC300AE Right Side View
1-8 GENERAL INFORMATION
Model Identification
SC300BE Left S ide View
SC300BE Right Side View
Frame NumberEngine Number
GENERAL INFORMATION 1-9
General Specifications
ItemsSC300AE ∼ AF/BE ∼ BF
Dimensions
Overall Length2 235 mm (87.99 in.)
Overall Width775 mm (30.51 in.)
Overall Height1 260 mm (49.61 in.)
Wheelbase1 555 mm (61.22 in.)
Road Clearance145 mm (5.71 in.)
Seat Height775 mm (30.5 in.)
Curb Mass:191 kg (421 lb)
Front
Rear113kg(249lb)
Fuel Tank Capacity13 L (3.4 US gal)
Performance
Minimum Turning Radius
Engine
Type4-stroke, SOHC, single cylinder
Cooling System
Bore and Stroke72.7 × 72.0 mm (2.86 × 2.83 in.)
Displacement299 cm³ (18.2 cu in.)
Compression Ratio10.8:1
Maximum Horsepower20.3 kW (28 PS) @7 750 r/min (rpm)
The scheduled maintenance must be done in accordance with this chart to k eep the motorcycle in
good running condition.
The initial maintenance is vitally important and must not be neglected.
I: Inspection and Clean, Adjust, Lubricate or Replace if necessary
C: Clean
A: Adjust
R: Replace
L: Lubricate
*: Should be serviced by your Kawasaki dealer, unless you have the proper tools, service data
and are technically qualified.
**: In the interest of safety, we recommend these items be serviced only by your Kawasaki dealer.
Kawasaki recommends that your Kawasaki dealer road test your scooter after each periodic
maintenance service is completed.
FREQUENCY
ITEMMONTH161218243036
*Air cleaner elementRRRRRR2-11
*Idle speedIII2-12
Throttle control system (play,
*
smooth return, no drag)
*Fuel systemIII2-13
Fuel hose
**
** CoolantIRIRIR2-16
*Valve clearanceIAIAIA2-19
** Clutch shoe wearIII2-20
Engine oil and oil filterRRRRRRR2-20
Engine oil screens (both right
*
and left)
Crankcase breatherCCCCCCC2-23
** Wheels/tiresIIIIII2-23
Drive belt
*
*Transmissi
Brake systemIIIIII2-28
Brake fluid
Brake hoseReplace at every 4 years2-31
Brake rubber parts
Brake pad wearIIIIII2-35
Brake light switchIIIIII2-36
Suspension systemIII2-36
Steering stem bearingsIIIIII2-38
Electrical system
*
Spark plugIRIRIR2-42
on oil
Whichever
comes
first
*Odometer Reading
× 1 000 km (× 1 000 mil
1
(0.6)5(3)10(6)15(9)20(12)25(15)30(18)
IIIIII2-12
Replace at every 5 years2-14
CRCRCR2-23
IIIRII2-25
RRRRRRR2-27
IRIRIR2-29
Replace at every 48 000 km (30
000 mile) or 4 years (whichever
occurs earlier)
IIIIII2-39
e)
Page
See
2-32
Periodic Maintenance Chart
PERIODIC MAINTENANCE 2-3
FREQUENCY
ITEMMONTH161218243036
Chassis partsLLL2-43
Condition of bolts, nuts and
*
fasteners
Whichever
comes
first
*Odometer Reading
× 1 000 km (× 1 000 mile)
1
(0.6)5(3)10(6)15(9)20(12)25(15)30(18)
IIIIII2-44
See
Page
2-4 PERIODIC MAINTENANCE
Torque and Locking Agent
Tighten all bolts and nuts to the proper torque using an accurate torque wrench. If insufficiently
tightened, a bolt or nut may become damaged, strip an internal thread, or break and then fall out. The
following table lists the tightening torque for the major bolts and nuts, and the parts requiring use of
a non-permanent locking agent or silicone grease etc. All of the values are for use with dry solvent cleaned threads unless otherwise indicated.
When checking the tightening torque of the bolts and nuts, first loosen the bolt or nut by half a turn
and then tighten to specified torque.
Letters used in the “Remarks” column mean:
AL: Tighten the two clamp bolts alternately two times to ensure even tightening torque.
EO: Apply engine oil.
G: Apply grease.
L: Apply a non-permanent locking agent.
Lh: Left-hand Threads
R: Replacement Parts
S: Follow the specified tightening sequence.
Alternator Cover Center Cap (SC300AE/BE)4.40.4539 in·lb
Alternator Cover Center Cap (SC300AF ∼/BF ∼)9.81.087 in·lb
Stator Coil Bolts9.81.087 in·lb
Crankshaft Sensor Bolts4.40.4539 in·lb
Starter Motor Clutch Bolts202.015L
Oxygen Sensor
N·mkgf·mft·lb
343.525
242.418
121.2106 in·lb
4.40.4539 in·lb
252.518
Torque
Remarks
PERIODIC MAINTENANCE 2-7
Torque and Locking Agent
The table below, relating tightening torque to thread diameter, lists the basic torque for the bolts and
nuts. Use this table for only the bolts and nuts which do not require a specific torque value. All of the
values are for use with dry solvent-cleaned threads.
Basic Torque for General Fasteners
Threads Diameter
(mm)
53.4 ∼ 4.90.35 ∼ 0.5030 ∼ 43 in·lb
65.9 ∼ 7.80.60 ∼ 0.8052 ∼ 69 in·lb
814 ∼ 191.4 ∼ 1.910 ∼ 13.5
1025 ∼ 342.6 ∼ 3.519 ∼ 25
1244 ∼ 614.5 ∼ 6.233 ∼ 45
1473 ∼ 987.4 ∼ 10.054 ∼ 72
16115 ∼ 15511.5 ∼ 16.083 ∼ 115
18165 ∼ 22517.0 ∼ 23.0125 ∼ 165
20225 ∼ 32523.0 ∼ 33.0165 ∼ 240
N·mkgf·mft·lb
Torque
2-8 PERIODIC MAINTENANCE
Specifications
ItemStandardService Limit
Fuel System (DFI)
ThrottleGripFreePlay2 ∼ 6 mm (0.08 ∼ 0.24 in.)–––
Idle Speed1 600 ±100 r/min (rpm)–––
Air Cleaner ElementWet paper element–––
Cooling System
Coolant:
Type (Recommended)Permanent type of antifreeze
ColorGreen–––
Mixed RatioSoft water 50%, coolant 50%–––
Freezing Point–35°C (–31°F)–––
Total Amount1.5L(1.6USqt)–––
Engine Top End
Valve Clearance:
Exhaust0.10 mm (0.0039 in.)–––
Intake0.10 mm (0.0039 in.)–––
Converter
Drive Belt Width25.2 mm (0.992 in.)23.7 mm (0.933 in.)
Engine Lubrication System
Engine Oil:
TypeAPI SJ, SL or SM with JASO MA, MA1 or
MA2
ViscositySAE 5W-50–––
Capacity1.3L(1.4USqt)–––
1.5 L (1.6 US qt) (when engine is completely
dry)
LevelBetween upper and lower level lines (Wait 2
∼ 3 minutes after idling or running)
Wheels/Tires
Tread Depth:
Front–––1 mm (0.04 in.)
Rear–––1 mm (0.04 in.)
Air Pressure (when Cold):
Front200 kPa (2.0 kgf/cm², 29 psi)–––
Rear
Final Drive
Final Gear Case Oil:
Viscosity
Capacity0.23 L (0.24 US qt) at disassembly–––
Brakes
Brake Fluid:
GradeDOT4–––
Brake Pad Lining Thickness:
Front5 mm (0.20 in.)1 mm (0.04 in.)
Rear5.8 mm (0.23 in.)1 mm (0.04 in.)
225 kPa (2.25 kgf/cm², 33 psi)
SAE 90
0.21 L (0.22 US qt) at change–––
–––
–––
–––
–––
–––
–––
PERIODIC MAINTENANCE 2-9
Specifications
ItemStandardService Limit
Brake Light Timing:
Front
RearPulled ON–––
Electrical System
Spark Plug:
TypeNGK CR7E–––
Gap0.7 ∼ 0.8 mm (0.028 ∼ 0.031 in.)
Pulled ON
–––
–––
2-10 PERIODIC MAINTENANCE
Special Tools
Inside Circlip Pliers:
57001-143
Steering Stem Nut Wrench:
57001-1100
Valve Adjusting Screw Holder:
57001-1217
Jack:
57001-1238
Flywheel & Pulley Holder:
57001-1605
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