This vehicle is designed for the operator only, no passengers.
•
This vehicle is a competition model only and was not manufactured for use on public streets, roads or
•
highways.
The use of this vehicle should be limited to participation in sanctioned competition events upon a closed
•
course.
This vehicle should not be used for general off-load recreation riding.
•
Read owner’s manual.
•
Whenever you see the symbols shown below,
heed their instructions! Always follow safe operating and maintenance
practices.
DANGER
DANGER indicates a hazardous situation
which, if not avoided, will result in death or
serious injury.
WARNING
WARNING indicates a hazardous situation
which, if not avoided, could result in de ath
or serious injury.
NOTICE
NOTICE is used to
latedtopersonalinjury.
NOTE indicates information that may help or guide
○
youintheopera
address practices not re-
NOTE
tion or service of the vehicle.
IMPORTANT NOTICE
THIS VEHICLE IS A COMP
ONLYANDWASNOTMANUFACTURED
FOR, NOR SHOULD IT BE USED ON, PUBLIC STREETS, R OADS,
USE OF THIS VEHICLE SHOULD BE LIMITED
TO PARTICIPATION IN SANCTIONED COMPETITION EVENTS UPON
THIS VEHICLE SHOULD NOT BE USED FOR
GENERAL OFF-ROAD RECREATIONAL RID ING.
READ OWNER ’S MANUA
ETITION MODEL
OR HIGHWAYS. THE
A CLOSED COURSE.
L.
WARNING
THIS VEHIC LE SHOULD NOT BE USED FOR
GENERAL OFF-ROAD R
ING.
Disclaimer of Warranty
This motorcycle is sold AS IS, with all faults,
obvious or concealed and there are NO WARRANTIES, expressed or implied. Including warranties of MERCHANTABILITY or FITNESS FOR
PURPOSE.
The purchaser accepts all responsibilitie s concerning quality, performance, cost of service and/or
necessary repairs.
ECREATIONAL RID-
Motorcycle Noise Emi
Information
This m otorcycle is designed for closed course competition use only. It does not conform to U.S. EPA
motorcycle noise st
NOTICE
oad motorcycling is a wonderful sport,
Off-r
and we hope you will enjoy it to the fullest. However, if improperly conducted, this sport has the
ntial to cause environmental problems as
pote
well as conflicts with other people. Responsible use of your off-road motorcycle will ensure
t these problems and conflicts do not occur.
tha
TO PROTECT THE FUTURE OF YOUR SPORT,
MAKE SUR E YOU USE YOUR MOTORCYCLE
GALLY, SHOW CONCERN FOR THE ENVI-
LE
RONMENT, AND RESPECT THE RIGHTS OF
OTHER PEOPLE.
ssion Control
andards.
WARNING
The engine exhaust from this product contains chemicals known to the State of California to cause cancer, birth defects or other
reproductive harm.
FOREWORD
Congratulations on choosing this Kawasaki motorcycle. Your new motorcycle is the product of Kawasaki’s
advanced engineering, exhaustive testing, and continuous striving for a superior lightweight, high-performance
machine with superb handling and stability for racing and sporting use.
Your new KX is a highly tuned competition machine for participation in racing events. As with any mechanical device, proper care and maintenance are important for trouble-free operation and top performance. This
manual is written to enable you to keep your KX properly tuned and adjusted.
Due to improvements in design and performance made during production, in some cases there may be minor discrepancies between
the actual vehicle and the illustrations and text in this manual.
This is a high perform
for beginners. Your youngster’s safety will depend on your commitment to always provide a safe riding
environment and a properly maintained vehicle. As with any moving vehicle there are possible safety
risks; be sure to hee
1. Always equip your child with suitable protective gear and riding apparel. Be sure he or she always
wears a helmet, eye protection, gloves, long pants, and a long-sleeved shirt while riding.
2. Never allow your child to carry a passenger. This motorcycle is designed for an OPERATOR ONLY.
3. This motorcycle is designed for off-road riding and should never be operated on public roads or
paved surfaces.
4. Always obey local off-road riding laws and regulations. Obtain permission to ride on private property.
5. You, the parent (and most likely “riding instructor/mechanic” as well), must be familiar with motorcycle
controls and maintenance requirements plus riding techniques. Read and understand the owner’s
manual provided with the motorcycle. Review all instructions and warnings with your child.
6. You must determine your child’s readiness to ride this off-road motorcycle. Your child should already
be familiar with motorcycle co ntro ls (location and function) and basic riding techniques. Your child
should also be physically large and strong enough to be able to straddle the motorcycle and hold it
up,plusbeabletopickitupifitisonitsside.
7. Before allowing your child to enter competition events, you must determine that he or she has the
necessary riding skills and physical/emotional maturity.
8. Your child’s safety depends in part on the good mechanical condition of the motorcycle. Be sure
to follow the maintenance and adjustment requirements contained in the Periodic Maintenance
Chart, Daily Pre-ride Inspection, and After-Race Check Points. Be sure your child understands the
importance of checking all items thoroughly before riding the motorcycle. Also, familiarity with the
motorcycle is important should a problem occur far from help.
9. Do not allow your child to ride unsupervised. He or she should always ride in the company of
an experienced adult.
10. Encourage your child not to ride beyond his or her skill level or faster than conditions safely allow.
Have them practice advanced riding maneuvers under controlled conditions.
11. Tell someone where you and your child are planning to ride and when you intend to return. Discuss
the ride with your child before you leave so he or she will know in advance what riding techniques
may be ne ce ssary to negotiate the terrain safely. If you are not familiar with the area, lead the
way and reduce your speed.
ance off-road motorcycle designed for experienced young riders. It is not suitable
d these precautions.
ENTS ABOUT SAFE RIDING
This moto rcycle is de
Exceeding this limit could damage the motorcycle.
signed for a rider weighting less than 55 kg (121 ponds).
After Storage ................................................. 132
ENVIRONMENTAL PROTECTION .................. 133
WIRING DIAGRA
..............................................
-TRAK®)....................
cycle................ ..............
AND AFTER-RACE
M ..........................................
92
103
131
134
10 SPECIFICATIONS
SPECIFICATIONS
DIMENSIONS
Overall Length1 590 mm (62.6 in.)
Overall Width760 mm (29.9 in.)
Overall Height955 mm (37.6 in.)
Wheelbase
Ground Clearance305 mm (12.0 in.)
Curb Mass60 kg (132.3 lb)
Fuel Ta nk Capacity3.8 L (1.0 US gal)
ENGINE
Type2-stroke, single-cy
Bore × Stroke44.5 × 41.6 mm (1.75 × 1.64 in.)
Displacement
Compression Ratio:
Timing:Intake port:
Scavenging port: Open61.8° BBDC
Exhaust port:
CarburetorMIKUNI VM24SS
OpenFull Open
Closed
Closed61.8° ABDC
Open91.5° BBDC
Closed91.5° ABDC
1 120 mm (44.1 in.)
linder, piston reed valve,
liquid-cooled
64 cm³ (3.91 cu in.)
8.4 : 1
–
Lubrication SystemPETROL M IX (32 : 1)
Starting System
Ignition SystemCDI
Ignition Timing
Spark PlugNGK BR10EG
Spark Plug TerminalSolid-Post
TRANSMISSION
Transmission Type
Clutch Type
Drive system
Gear Ratios:1st Gear2.846 (37/13)
2nd Gear2.125 (34/16)
3rd Gear1.722 (31/18)
4th Gear1.42 8 (3 0/21)
5th Gear1.21 7 (2 8/23)
6th Gear1.08 3 (2 6/24)
Primary Reduction Ratio
Final Reduction Ratio
Overall Ratio (Top Gear)
Transmission Oil:Capacity0.5 L (0.53 US qt)
Type
Primary Kick
20.5° BTDC @7 100 r/min (rpm)
6-speed, Constant Mesh, Return Shift
Wet, Multi Disc
Chain Drive
3.500 (77/22)
3.615 (47/13)
13.703
API SG, SH, SJ, SL or SM with JASO MA, MA1 or MA2
SAE 10W-40
SPECIFICATIONS 11
12 SPECIFICATIONS
FRAME
TypeTubular, semi-double cradle
Steering Angle40° to Either Side
Castor27°
Trail
Tire Size, Type:
Rim Size:
Front
Rear
Front14 × 1.40
Rear12 × 1.60
60 mm (2.36 in.)
60/100-14 30M, DUNLOP D756F
80/100-12 41M, DUNLOP D756
Suspension:
Front
Rear
Telescopic fork
UNI-TRAK
®
Front Suspension Travel210 mm (8.27 in.)
Rear Wheel Travel
Front Fork Oil
Type
240 mm (9.45 in.)
Kawasaki Fork Oil SS8
Amount (per fork leg)249.5 ∼ 254.5 mL (8.44 ∼ 8.60 US oz)
Level
132 mm (5.2 in.)
(fork compressed,
spring removed)
BRAKES
Type
Effective Disc Diameter:
(Front & Rear)
Front
Rear
Disc
154.8 mm (6.09 in.)
146 mm (5.75 in.)
Specifications are subject to change without notice.
Swingarm
GENERAL INFORMATION
Location of Labels
All warning labels which are on your vehicle are
repeated here. Read lab
derstand them thoroughly. They contain information
which is important for your safety and the safety of
anyone else who may ope
fore, it is very important that all warning labels be on
your vehicle in the locations shown. If any label is
missing, damaged, or
your Kawasaki dealer and install it in the correct position.
The sample warning labels in this section have
○
part numbers to help
the correct replacement.
els on your vehicle and un-
rate your vehicle. There-
worn, get a replacement from
NOTE
you and your dealer obtain
GENERAL INFORMATION 13
j
1. Brake Fluid (Front)
14 GENERAL INFORMATION
2. Radiator Cap Danger
3. Rear Shock Absorber Warning
4. Disclaimer of Warranty
5. Gasoline-Engine Oil Mixing Ratio
6. Noise Emission Control Information
7. Important Information
1)
3)
GENERAL INFORMATION 15
j
2)
4)
16 GENERAL INFORMATION
5)
6)
7)
Location of Parts
1. Clutch Lever
2. Engine Stop Button
3. Fuel Tank Cap
4. Front Brake Fluid Reservoir
5. Front Brake Lever
6. Throttle G rip
GENERAL INFORMATION 17
j
18 GENERAL INFORMATION
7. Front Fork
8. Radiator
9. Fuel Tank
10. Fuel Tap
11. Carburetor
12. Seat
13. Air Cleaner E
14. Brake Disc
15. Brake Caliper
16. Shift Pedal
17. Rear Shock Absorber
18. Swingarm
19. Chain Gu ide
20. Drive Chain
lement
21. Muffler
22. Rear Brake Fluid Reservoir
23. Rear Shock Absorber Gas Reservoir
24. Kick Pedal
25. Rear Brake Pedal
26. Transmission Oil Level Inspection Window
27. Water Pump Co
28. Exhaust Pipe
ver
GENERAL INFORMATION 19
j
20 GENERAL INFORMATION
Side Stand
Support the motorcyc
stand as shown.
A. Side Stand
B. Longer end
le with the provided side
WARNING
Riding with the side stand in the down position can cause a c
not start the engine or attempt to ride the motorcycle when the side stand is down.
rash resulting in injury. Do
Fuel
The Kawasaki KX is equ
gine that requires a gasoline-oil mixture.
Fuel Tank Capacity3.8 liters (1.0 US gal)
To open the fuel tank cap, disconnect the breather
rom the hole in the num be r plate, and turn the
hose f
tank cap counterclockwise.
The breather hose has the check valve. The check
on the breather hose prevents fuel from flow-
valve
ing out. When installing the b r eather hose, make
sure th e arrow on the valve points toward the fuel
cap.
tank
ipped with a 2-stroke en-
NOTE
Support the mo
○
when performing the maintenance or adjustment.
torcycle by using the suitable stand
A. Fuel Tank Cap
B. Breather Hose
WARNING
Gasoline is extremely flammable and can be
explosive under certain conditions, creating
the potential for serious burns. Always stop
theengineandneversmokewhilehandling
fuel. Make sure the area is well-ventilated
and free from any source of flame or sparks;
this includes any appliance with a pilot light.
Make sure the engine is cold before working.
Wipe any fuel off the engine before starting
it. Gasoline is a toxic substance. Dispose of
gasoline properly. Contact your local author-
ities for approved disposal methods.
GENERAL INFORMATION 21
NOTICE
If engine “knocking” or “pinging” occurs,
use a different brand of gasoline of a higher
octane rating.
If this condition is allowed to continue it can
lead to severe engine damage.
Gasoline quality is
quality or not meeting standard industry
specifications may result in unsatisfactory
performance. Oper
from the use of poor quality or nonrecommended fuel may not be covered under your
warranty.
important. Fuels of low
ating problems that result
j
Fuel Requirements:
Fuel Type
Use clean, fresh unleaded gasoline with a minimum Antiknock index of 90. The Antiknock Index is
posted on servi
octane rating of a gasoline is a measure of its resistance to detonation or “knocking.” The Antiknock
Index is an ave
ber (RON) and the Motor Octane Number (MON) as
shown in the table below.
Octane Rating
Antiknock Index
ce station pumps in the U.S.A. The
rage of the Research Octane Num-
Method
(RON + MON)
2
Minimum
Rating
90
Fuels Containing Oxygenates
Gasoline frequently contains oxgenates (alcohols
and ether s) especially in areas of the U.S. and
Canada which are required to sell such reformulated fuels as part of a strategy to reduce exhaust
emissions.
The types and volume of fuel oxygenates approved for use in unleaded gasoline by the U.S.
Environmental Protection Agency include a broad
range of alcohols and ethers, but only two components have seen any significant level of commercial
use.
Gasoline/Alcohol Blends - Gasoline containing up
to 10% ethanol (alcohol produced from agricultural
products such as corn), also known as “gasohol” is
approved for use.
22 GENERAL INFORMATION
NOTICE
Avoid using blends of unleaded gasoline and
methanol (wood alcohol) whenever possible,
and never use “gasoh
than 5% methanol. Fuel system damage and
performance problems m ay result.
Gasoline/Ether Blends - The most common ether
is methyl tertiar
gasolinecontainingupto15%MTBE.
Other oxygenates approved for use in unleaded
○
gasolineincludeTAME(upto16.7%)andETBE
(upto17.2%). Fu
canalsobeusedinyourKawasaki.
y butyl ether (MTBE). You may use
ol” containing more
NOTE
el containing these oxygenates
NOTICE
Never use gasoline with an octane rating lower than the minimum specified by
Kawasaki.
Never use “gasohol” with more than 10%
ethanol, or more than 5% methanol. Gasoline containing met
blended with cosolvents and corrosion
inhibitors.
Certain ingredien
paint fading or damage.Be extra careful
not to spill gasoline or gasoline oxygenate
blends during ref
When not operating your Kawasaki for 30 to
60 days, mix a fuel stabilizer (such as STA
-BIL) with the ga
stabilizer additives inhibit oxydation of the
fuel which minimizes gummy deposits.
Never store this
the fuel system. Before storage it is recommended that you drain all fuel from the fuel
tank and carbur
tion in this manual.
Two-Stroke Engine Oil
Oil must be mixe
piston, cylinder, cranks haft, bearings, and connecting rod bearings.
If unavailable, use an equivalent type of two stroke
○
racing oil.
d with the gasoline to lubricate the
hanol must also be
ts of gasoline may cause
ueling.
soline in the fuel tank. Fuel
product with “gasohol” in
etors. See the Storage sec-
NOTE
Recommended Oil
KawasakiPerformance2-StrokeRacingOil*
or equivalent 2-stroke engine lubricant
*Kawas
been specifically engineered for your vehicle. Consistent use of these products meets or exceeds warranty
tend the life of your Kawasaki.
Gasoline-Engine Oil Mixing Ratio
A 32-to-1 mixture is about 31 mL of oil per liter of
gasoline or 4 fluid ounces of oil per gallon of gasoline.
aki Performance Oils and Lubricants have
and service req uirements and can help to ex-
32 : 1 (gasoline: engine oil)
NOTICE
Do not use vegetable and mineral oils.
Too much oil will cause excessive smoking
and spark plug fouling.Too little oil will
cause engine damage or premature wear.
To prepare the gasoline-oil mixture, pour the oil
and half of the gasoline into a container first and stir
thoroughly. Then, add the rest of the gasoline and
stir the mixture well.
GENERAL INFORMATION 23
NOTE
At low te mperature, oil will not easily mix with
○
gasoline.Take time to ensure a well-blended
mixture.
The lubricative quality of the gasoline-oil m ixture
○
deteriorates rapidly; therefore, prepare a fresh
mixture f or each day of operation.
j
24 GENERAL INFORMATION
Kick Pedal
This motorcycle star
When the clutch lever is pulled, the motorcycle can
be started with the transmission in any gear.
A. Kick Pedal
ting system is primary kick.
Starting the Engine
Turn the fuel tap leve
•
A. Fuel Tap
B. OFF position
C. ON position
Make sure the transmission is in neutral.
•
If the engine is cold, pull up the choke knob.
•
Kick the engine over, leaving the throttle closed.
•
r to the ON position.
WARNING
Riding with the side stand in the down position can cause
not start the engine or attempt to ride the motorcycle when the side stand is down.
a crash resulting in injury. Do
Shifting Gears
GENERAL INFORMATION 25
j
A. Choke Knob
Even after the engine has started, do not push
•
back the choke knob until the engine is thoroughly
warmed up.
NOTE
When the engine is already warm or on hot days,
○
open the throttle part way instead of using the
choke knob.
If the engine is flooded, kick it over with the throttle
○
fully open until it starts.
When the clutch lever is pulled, the motorcycle can
○
be started with the transmission in any gear.
This motorcycle is eq
shift” transmission. The neutral is located halfway
between 1st and 2nd gear. “Return shift” means
that when shifting up
engaged before the next higher o r lower gear may
be selected.
To engage first gea
•
in the clutch lever and push down on the shift
pedal, gently release the clutch lever, then release
the shift pedal.
To shift up to the next gear, pull in the clutch lever,
•
lift the shift pedal with your toes, gently release the
clutch lever, an
To shift down to the next gear, pull in the clutch
•
lever, push the shift pedal down as far as it will go,
gently release t
shift pedal.
uipped with a 6-speed “return
or down, each gear must be
r from the neutral position, pull
d then release the shift pedal.
he clutch le ver, then release the
NOTICE
When changing gears, press firmly on the
shift pedal to ensure proper shifting. Care-
less, incomplete shifting can cause the
transmission to jump out of gear and lead to
engine damage.
26 GENERAL INFORMATION
Stopping the Motorcycle
A. Shift Pedal
For maximum decelera
apply both front and rear brakes. Pull in the clutch
lever as the motorcycle comes to a stop. Independent use of the front o
geous in certain circumstances. Shift down progressively to ensure good engine response at all speeds.
tion, close the throttle and
r rear brake may be advanta-
GENERAL INFORMATION 27
j
Stopping the Engine
Shift the transmissi
•
After racing the engine slightly, close the throttle
•
completely and push the engine stop button.
A. Engine Stop Button
Turn the fuel tap lever to the OFF position.
•
on into the neutral position.
Break-In
A brief break-in proc
obtain the proper operating clearances in the engine
and transmission, which are necessary for performance and reliabilit
edure must be carried out to
y.
NOTICE
For the first hour or 20 km (12 mi) of opera-
tion, run the engine at low and moderate en-
gine speeds. See details below.
NOTE
The low-speed operation during the break-in pe-
○
riod may c ause carbon to build up on and foul
the spark plug. If so, replace the standard spark
plug with a hotter spark plug for the duration of the
break-in period.
Recommended Spark Plug
Standard PlugNGK BR10E G
Hotter Plug
Break in the engine as follows.
1.Start the engine and let it idle until it is thor-
oughly warmed up.
2.Stop and let the engine cool completely.
3.Start the engine and ride the motorcycle for 10
minutes at moderate speed - NEVER ACC EL-
ERATE HARD.
NGK BR9EG
28 GENERAL INFORMATION
4.Stop and let the engin
sure to check and adjust the chain slack and
spoke tightness and carry out a general inspection.
5.Start the engine and ride the motorcycle for 20
minutes at moderate speed -NEVER ACCEL-
ERATE HARD.
6.Stop and let the engine cool completely. Check
and adjust as in step 4. Then, drain the coolant,
remove and inspec
and piston.
Piston:A scored piston s
Cylinder:
Cylinder Head:
e cool completely. Be
t the cylinder head, cylinder
kirt could
lower engine performance
or damage the cylinder wall.
Scores on the cy
should be smoothed with a
#400 to #600 emery cloth.
Decarbonize th
ports and the upper part of
the cylinder, taking care not
to damage the c
Scores on the cylinder wall
should be smoothed with a
#400 to #600 e
Removethecarboninside
the combustion chamber.
linder wall
e exhaust
ylinder w a ll.
mery cloth.
7.Install the parts rem
8. Filltheradiatoruptothebottomoftheradiator
filler neck with coolant. Before putting the motorcycle into opera
tem.
9.Start the engine and ride the motorcycle for 30
minutes at moderat
ERATE HARD.
10. Stop and let the engine cool completely. Check
and adjust as in st
11. After the break-in procedure has been properly
carried out, the motorcycle is ready for regular
operation. Usin
techniques and avoiding recklessly high engine
speeds will keep the engine trouble-free.
oved.
tion, bleed the cooling sys-
e speed-NEVER ACCEL-
ep 4.
g the proper riding skills and
NOTE
After break-in, install a new standard spark plug,
○
and change the t
To keep optimum engine performance, replace the
○
piston rings after break-in.
ransmission oil.
Daily Pre-Ride Checks
GENERAL INFORMATION 29
j
Check the following i
of these checks will help ensure a safe, reliable ride.
If any irregularities are found during these checks, refer to the appropriate section and take the action required
to return the motorcy
tems each day before you ride. The time required is minimal, and habitual performance
cle to a safe operating condition.
WARNING
Failure to perform these checks before operation may result in serious damage or an accident. Always perform daily checks before operation.
DANGER
Exhaust gas contains carbon monoxide, a colorless, odorless poisonous gas.
Inhaling carbon monoxide can cause serious brain injury or death.
Do not run the engine in enclosed areas. Operate only in a well-ventilated area.