Yamaha YFZ450W Manual

LIT-11616-20-13 5TG-28197-12
YFZ450W
YFZ450SEW
SUPPLEMENTARY
SERVICE MANUAL

FOREWORD
This Supplementary Service Manual has been prepared to introduce new service and data for the
YFZ450W/YFZ450SEW. For complete service information procedures it is necessary to use this
Supplementary Service Manual together with the following manual.
YFZ450S SERVICE MANUAL: LIT-11616-17-11 (5TG-28197-10)
YFZ450V SUPPLEMENTARY SERVICE MANUAL: LIT-11616-19-32 (5TG-28197-11)
YFZ450W/YFZ450SEW
SUPPLEMENTARY
SERVICE MANUAL
©2006 by Yamaha Motor Corporation, U.S.A.
First edition, April 2006
All rights reserved.
Any reproduction or unauthorized use
without the written permission of
Yamaha Motor Corporation, U.S.A.
is expressly prohibited.
Printed in U.S.A.
LIT-11616-20-13

EBS00002
NOTICE
This manual was produced by the Yamaha Motor Company primarily for use by Yamaha dealers
and their qualified mechanics. It is not possible to include all the knowledge of a mechanic in one
manual, so it is assumed that anyone who uses this book to perform maintenance and repairs on
Yamaha vehicle has a basic understanding of the mechanical ideas and the procedures of vehicle
repair. Repairs attempted by anyone without this knowledge are likely to render the vehicle unsafe
and unfit for use.
Yamaha Motor Company, Ltd. is continually striving to improve all its models. Modifications and sig-
nificant changes in specifications or procedures will be forwarded to all authorized Yamaha dealers
and will appear in future editions of this manual where applicable.
NOTE:
_
Designs and specifications are subject to change without notice.
EBS00003
IMPORTANT INFORMATION
Particularly important information is distinguished in this manual by the following notations.
The Safety Alert Symbol means ATTENTION! BECOME ALERT! YOUR
SAFETY IS INVOLVED!
Failure to follow WARNING instructions could result in severe injury or death to
the vehicle operator, a bystander or a person checking or repairing the vehicle.
A CAUTION indicates special precautions that must be taken to avoid damage
to the vehicle.
A NOTE provides key information to make procedures easier or clearer.
WARNING
CAUTION:
NOTE:

EBS00004
HOW TO USE THIS MANUAL
MANUAL ORGANIZATION
This manual consists of chapters for the main categories of subjects. (See “symbols”)
1st title 1: This is the title of the chapter with its symbol in the upper right corner of each page.
2nd title 2: This title indicates the section of the chapter and only appears on the first page of each
section. It is located in the upper left corner of the page.
3rd title 3: This title indicates a sub-section that is followed by step-by-step procedures accompa-
nied by corresponding illustrations.
EXPLODED DIAGRAMS
To help identify parts and clarify procedure steps, there are exploded diagrams at the start of each
removal and disassembly section.
1. An easy-to-see exploded diagram 4is provided for removal and disassembly jobs.
2. Numbers 5are given in the order of the jobs in the exploded diagram. A number that is enclosed
by a circle indicates a disassembly step.
3. An explanation of jobs and notes is presented in an easy-to-read way by the use of symbol marks
6. The meanings of the symbol marks are given on the next page.
4. A job instruction chart 7accompanies the exploded diagram, providing the order of jobs, names
of parts, notes in jobs, etc.
5. For jobs requiring more information, the step-by-step format supplements 8are given in addition
to the exploded diagram and the job instruction chart.

EBS00006
SYMBOLS
The following symbols are not relevant to
every vehicle.
Symbols 1to 9indicate the subject of each
chapter.
1General information
2Specifications
3Periodic checks and adjustments
4Engine
5Cooling system
6Carburetor
7Chassis
8Electrical
9Troubleshooting
Symbols 0to Gindicate the following
0Serviceable with engine mounted
AFilling fluid
BLubricant
CSpecial tool
DTightening torque
EWear limit, clearance
FEngine speed
GElectrical data (Ω, V, A)
Symbols Hto Min the exploded diagrams
indicate the types of lubricants and lubrication
points.
HApply engine oil
IApply gear oil
JApply molybdenum disulfide oil
KApply wheel bearing grease
LApply lithium-soap-based grease
MApply molybdenum disulfide grease
Symbols Nto Oin the exploded diagrams
indicate where to apply a locking agent Nand
when to install a new part O.
NApply the locking agent (LOCTITE®)
OReplace
12
34
56
78
90
AB
CD
EFG
HIJ
KLM
NO
GEN
INFO SPEC
CHK
ADJ ENG
COOL CARB
CHAS
–+
ELEC
TRBL
SHTG
T
R
.
.
EGM
BLS M
LT
New

CONTENTS
SPECIFICATIONS.............................................................................................. 1
GENERAL SPECIFICATIONS ..................................................................... 1
ENGINE SPECIFICATIONS......................................................................... 1
CHASSIS SPECIFICATIONS....................................................................... 2
TIGHTENING TORQUES............................................................................. 2
ENGINE TIGHTENING TORQUES ....................................................... 2
CABLE ROUTING ........................................................................................ 3
PERIODIC CHECKS AND ADJUSTMENTS...................................................... 9
INTRODUCTION .......................................................................................... 9
PERIODIC MAINTENANCE CHART FOR THE EMISSION CONTROL
SYSTEM...................................................................................................... 9
GENERAL MAINTENANCE AND LUBRICATION CHART ........................ 10
CHASSIS.................................................................................................... 12
ADJUSTING THE FRONT SHOCK ABSORBERS
(for models equipped with two compression damping adjusters) ....... 12
ADJUSTING THE REAR SHOCK ABSORBER
(for models equipped with two compression damping adjusters) ....... 15
COOLING SYSTEM.......................................................................................... 20
WATER PUMP ........................................................................................... 20
CHECKING THE OIL NOZZLE............................................................ 22
INSTALLING THE OIL NOZZLE.......................................................... 22
CHASSIS .......................................................................................................... 23
FRONT AND REAR BRAKES .................................................................... 23
FRONT BRAKE MASTER CYLINDER ................................................ 23
YFZ450W/YFZ450SEW 2007 WIRING DIAGRAM

–1 –
SPEC
EBS01001
SPECIFICATIONS
GENERAL SPECIFICATIONS
EBS01002
ENGINE SPECIFICATIONS
Item Standard
Model code 5D31, 5D34
Item Standard Limit
Clutch
Friction plate 1 (inside dia.: 119 mm)
Thickness 2.92 ~ 3.08 mm (0.115 ~ 0.121 in) 2.8 mm
(0.110 in)
Quantity 7 ----
Friction plate 2 (inside dia.: 128 mm)
Thickness 2.92 ~ 3.08 mm (0.115 ~ 0.121 in) 2.8 mm
(0.110 in)
Quantity 1 ----
Clutch plate
Thickness 1.5 ~ 1.7 mm (0.059 ~ 0.067 in) ----
Quantity 7 ----
Max. warpage ---- 0.2 mm
(0.0079 in)
Clutch spring
Free length 47.8 mm (1.88 in) 46.0 mm
(1.81 in)
Quantity 6 ----
Clutch housing thrust clearance 0.10 ~ 0.35 mm (0.0039 ~ 0.0138 in) ----
Clutch housing radial clearance 0.010 ~ 0.044 mm (0.0004 ~ 0.0017 in) ----
Clutch release method Inner push, cam push ----
Push rod 2 bending limit 0.1 mm (0.004 in) ----
GENERAL SPECIFICATIONS/
ENGINE SPECIFICATIONS

–2 –
SPEC
CHASSIS SPECIFICATIONS/
TIGHTENING TORQUES
EBS01003
CHASSIS SPECIFICATIONS
EBS01005
TIGHTENING TORQUES
ENGINE TIGHTENING TORQUES
Item Standard Limit
Rear disc brake
Type Single ----
Disc outside diameter ×thickness 200.0 ×4.0 mm (7.87 ×0.16 in) ----
Pad thickness inner 5.4 mm (0.21 in) 1.0 mm
(0.04 in)
Pad thickness outer 5.4 mm (0.21 in) 1.0 mm
(0.04 in)
Master cylinder inside diameter 12.7 mm (0.50 in) ----
Caliper cylinder inside diameter 25.4 mm (1.00 in) ----
Brake fluid type DOT 4 ----
Part to be tightened Part name Thread
size Q’ty Tightening torque Remarks
Nm m ·kg ft ·lb
Oil gallery bolt Bolt M6 1 7 0.7 5.1

–3 –
SPEC
CABLE ROUTING
EBS00028
CABLE ROUTING
1Parking brake cable
2Clutch cable
3Clutch switch lead
4Handlebar switch lead
5Front brake light switch lead
6Throttle switch lead
7Throttle cable
ÈFasten the clutch switch lead and handlebar
switch lead with the plastic bands at the bends in
the handlebar.
ÉFasten the front brake light switch lead and
throttle switch lead with the plastic band at the
bend in the handlebar.
ÊLess than 20 mm (0.79 in)
ËMake sure that there is no slack in the throttle
switch lead.
ÌFasten the throttle switch lead to the handlebar
with the plastic band.
A
A
È
ÊË
Ì
2 3 4 5 61
6
É
7

–4 –
SPEC
CABLE ROUTING
1Indicator coupler
2Radiator fan motor coupler
3Thermo switch 2
4Fuel tank breather hose
5Radiator fan motor lead
6Radiator fan breather hose
7Wire harness
8Fuel hose
9Throttle position sensor lead
0Carburetor switch lead
ACrankcase breather hose
BNegative battery lead
CStarter motor lead
DNeutral switch lead
EA.C. magneto lead
FOil tank breather hose
GResistor lead
HHeadlight relay 1
IHeadlight relay 2
JA.C. magneto coupler
KNeutral switch coupler
LFront brake hose
MThrottle cable
NParking brake cable
OClutch cable
PIndicator leads
QCylinder head breather hose
A
P
5
GG
GG
C
C
B
E
E
A
D-D
C-C
B-B
F-F E-E
F
F
D
D
G-G
B
7
2
56
7
890
A
B
C
D
E
F
É
Ê
Ì
Ë
Í
Î
Ï
Ð
Ò
Ñ
Ó
ÔÕ
Ö
Àß
×
Ø
G
E
DE
DQ
7
09
Û
Ý
Þ
I
H
Ù
Á
Ú
Ú
G
H
H
1
L
M
O
4
È
K
J
N
Ü
3

–5 –
SPEC
CABLE ROUTING
ÈConnect the neutral switch coupler and the A.C.
magneto coupler, and then fasten the leads with
the plastic band, making sure that they are
routed under the frame and that they do not con-
tact headlight relay 2.
ÉFasten the wire harness, thermo switch 2 lead,
A.C. magneto lead, resistor lead, neutral switch
lead, and radiator fan motor lead with the plastic
band and then face the end of the band inward
between the frame tubes.
Ê7 ~ 21 mm (0.28 ~ 0.83 in)
Ë57 ~ 77 mm (2.24 ~ 3.03 in)
ÌFasten the wire harness, throttle position sensor
lead, and carburetor switch lead with the plastic
band. Make sure that there is no slack in the
throttle position sensor lead and carburetor
switch lead along the frame as shown.
ÍMore than 15 mm (0.59 in)
ÎInstall the cylinder head breather hose with the
paint mark facing to the left.
A
P
5
GG
GG
C
C
B
E
E
A
D-D
C-C
B-B
F-F E-E
F
F
D
D
G-G
B
7
2
56
7
890
A
B
C
D
E
F
É
Ê
Ì
Ë
Í
Î
Ï
Ð
Ò
Ñ
Ó
ÔÕ
Ö
Àß
×
Ø
G
E
DE
DQ
7
09
Û
Ý
Þ
I
H
Ù
Á
Ú
Ú
G
H
H
1
L
M
O
4
È
K
J
N
Ü
3

–6 –
SPEC
CABLE ROUTING
ÏFasten the wire harness with the plastic band on
the positioning tape and then face the end of the
plastic band inward.
ÐFasten the negative battery lead and starter
motor lead with the plastic band and then face
the end of the plastic band inward.
ÑFasten the starter motor lead to the negative
battery lead at the mark on the battery lead with
the plastic band. Then, fasten the starter motor
lead and negative battery lead to the frame with
the plastic band and face the end of the band
inward.
ÒInstall the crankcase breather hose with the
paint mark facing to the left.
ÓRoute the neutral switch lead so that it does not
contact the edges of the joint on the end of the
oil pipe 2.
A
P
5
GG
GG
C
C
B
E
E
A
D-D
C-C
B-B
F-F E-E
F
F
D
D
G-G
B
7
2
56
7
890
A
B
C
D
E
F
É
Ê
Ì
Ë
Í
Î
Ï
Ð
Ò
Ñ
Ó
ÔÕ
Ö
Àß
×
Ø
G
E
DE
DQ
7
09
Û
Ý
Þ
I
H
Ù
Á
Ú
Ú
G
H
H
1
L
M
O
4
È
K
J
N
Ü
3

–7 –
SPEC
CABLE ROUTING
ÔFasten the neutral switch lead with the lead
holder.
ÕFasten the neutral switch lead with the clamp.
ÖFasten the A.C. magneto lead with the lead
holder.
×Fasten the neutral switch lead and A.C. mag-
neto lead with the plastic band. Face the end of
the plastic band inward on top of the frame.
ØPass the neutral switch lead and A.C. magneto
lead through the guide on the fender stay.
ÙWrap the resistor lead around the frame as
shown in the illustration, and then fasten it with
the plastic band. Face the end of the plastic
band inward.
ÚInstall headlight relay 1 and headlight relay 2 to
the inside of the frame, making sure to insert the
tab on each relay completely into its rubber
holder and to install the holders all the way onto
the tabs on the stay.
A
P
5
GG
GG
C
C
B
E
E
A
D-D
C-C
B-B
F-F E-E
F
F
D
D
G-G
B
7
2
56
7
890
A
B
C
D
E
F
É
Ê
Ì
Ë
Í
Î
Ï
Ð
Ò
Ñ
Ó
ÔÕ
Ö
Àß
×
Ø
G
E
DE
DQ
7
09
Û
Ý
Þ
I
H
Ù
Á
Ú
Ú
G
H
H
1
L
M
O
4
È
K
J
N
Ü
3

–8 –
SPEC
CABLE ROUTING
ÛWhen installing the fuel tank cover, do not pinch
the front brake hose, throttle cable, front brake
light switch lead, and throttle switch lead.
ÜRoute the front brake hose in front of the handle-
bar cover.
ÝRoute the clutch cable and parking brake cable
in front of the handlebar cover.
ÞWhen installing the fuel tank cover, do not pinch
the clutch cable, parking brake cable, clutch
switch lead, and handlebar switch lead.
ßFasten the cylinder head breather hose with the
holder, making sure that the catch of the holder
is facing upward.
ÀFasten the A.C. magneto lead and neutral
switch lead with the plastic band, making sure
that the end of the band is on top of the frame,
facing inward.
ÁFasten the resistor lead with the holders.
A
P
5
GG
GG
C
C
B
E
E
A
D-D
C-C
B-B
F-F E-E
F
F
D
D
G-G
B
7
2
56
7
890
A
B
C
D
E
F
É
Ê
Ì
Ë
Í
Î
Ï
Ð
Ò
Ñ
Ó
ÔÕ
Ö
Àß
×
Ø
G
E
DE
DQ
7
09
Û
Ý
Þ
I
H
Ù
Á
Ú
Ú
G
H
H
1
L
M
O
4
È
K
J
N
Ü
3

–9 –
CHK
ADJ
EBS00029
PERIODIC CHECKS AND ADJUSTMENTS
INTRODUCTION
This chapter includes all information necessary to perform recommended checks and adjustments.
These preventive maintenance procedures, if followed, will ensure more reliable vehicle operation
and a longer service life. The need for costly overhaul work will be greatly reduced. This information
applies to vehicles already in service as well as to new vehicles that are being prepared for sale. All
service technicians should be familiar with this entire chapter.
PERIODIC MAINTENANCE CHART FOR THE EMISSION CONTROL
SYSTEM
NOTE:
•For ATVs not equipped with an odometer or an hour meter, follow the month maintenance inter-
vals.
•For ATVs equipped with an odometer or an hour meter, follow the km (mi) or hours maintenance
intervals. However, keep in mind that if the ATV isn’t used for a long period of time, the month
maintenance intervals should be followed.
•Items marked with an asterisk should be performed by a Yamaha dealer as they require special
tools, data and technical skills.
NO. ITEM CHECK OR MAINTE-
NANCE JOB
Whichever
comes first
INITIAL EVERY
month136612
km
(mi)
320
(200)
1300
(800)
2500
(1600)
2500
(1600)
5000
(3200)
hours 20 80 160 160 320
1 * Fuel line •Check fuel hoses for cracks or other damage, and
replace if necessary. √√√
2 Spark plug •Check condition and clean, regap, or replace if nec-
essary. √√√√√
3 * Valves •Check valve clearance and adjust if necessary. √√√√
4* Carburetor
•Check starter (choke) operation and correct if neces-
sary.
•Check engine idling speed and adjust if necessary.
√√√√
5* Crankcase breather
system
•Check breather hose for cracks or other damage,
and replace if necessary. √√√
6 * Exhaust system
•Check for leakage and replace gasket(s) if neces-
sary.
•Check for looseness and tighten all screw clamps
and joints if necessary.
√√√
7 Spark arrester •Clean. √√√
INTRODUCTION/PERIODIC MAINTENANCE CHART
FOR THE EMISSION CONTROL SYSTEM

–10 –
CHK
ADJ
GENERAL MAINTENANCE AND LUBRICATION CHART
GENERAL MAINTENANCE AND LUBRICATION CHART
NO. ITEM CHECK OR MAINTE-
NANCE JOB
Whichever
comes first
INITIAL EVERY
month136612
km
(mi)
320
(200)
1300
(800)
2500
(1600)
2500
(1600)
5000
(3200)
hours 20 80 160 160 320
1 Air filter element •Clean and replace if necessary. Every 20–40 hours (more often in wet or
dusty areas)
2* Clutch •Check operation and adjust if necessary. √√√√
3 * Front brake
•Check operation and correct if necessary.
•Check fluid level and ATV for fluid leakage, and cor-
rect if necessary.
√√√√√
•Replace brake pads. Whenever worn to the limit
4 * Rear brake
•Check operation and correct if necessary.
•Check brake lever free play and adjust if necessary.
•Check fluid level and ATV for fluid leakage, and cor-
rect if necessary.
√√√√√
•Replace brake pads. Whenever worn to the limit
5 * Brake hoses
•Check for cracks or other damage, and replace if
necessary. √√√√
•Replace. Every 4 years
6 * Parking brake •Check operation and adjust if necessary. √√√√√
7 * Wheels •Check runout and for damage, and replace if neces-
sary. √√√√
8* Tires
•Check tread depth and for damage, and replace if
necessary.
•Check air pressure and balance, and correct if nec-
essary.
√√√√
9 * Wheel bearings •Check for looseness or damage, and replace if nec-
essary. √√√√
10 * Swingarm pivots
•Check operation and for excessive play, and replace
bearings if necessary.
•Lubricate with molybdenum disulfide grease.
√√√
11 * Upper and lower arm
pivots •Lubricate with lithium-soap-based grease. √√√
12 Drive chain
•Check chain slack and adjust if necessary.
•Check rear wheel alignment and correct if necess-
sary.
•Clean and lubricate.
√√√√√
13 * Drive chain rollers •Check for wear and replace if necessary. √√√
14 * Chassis fasteners •Make sure that all nuts, bolts, and screws are prop-
erly tightened. √√√√√
15 * Shock absorber
assemblies
•Check operation and correct if necessary.
•Check for oil leakage and replace if necessary. √√√
16 *
Rear suspension
relay arm and con-
necting arm pivoting
points
•Check operation and correct if necessary.
•Lubricate with lithium-soap-based grease. √√√√
17 * Steering shaft •Lubricate with lithium-soap-based grease. √√√
18 * Steering system •Check operation and repair or replace if damaged.
•Check toe-in and adjust if necessary. √√√√√
19 * Engine mount •Check for cracks or other damage, and replace if
necessary. √√√
20 Engine oil •Change.
•Check ATV for oil leakage, and correct if necessary. √√√√
21 Engine oil filter ele-
ment •Clean or replace if necessary. √√√

–11 –
CHK
ADJ
GENERAL MAINTENANCE AND LUBRICATION CHART
NOTE:
•The air filter needs more frequent service if you are riding in unusually wet or dusty areas.
•Hydraulic brake service
•Regularly check and, if necessary, correct the brake fluid level.
•Every two years replace the internal components of the brake master cylinders and calipers, and
change the brake fluid.
•Replace the brake hoses every four years and if cracked or damaged.
22 Cooling system
•Check coolant level and ATV for coolant leakage,
and correct if necessary. √√√√√
•Replace coolant. Every 2 years
23 * Moving parts and
cables •Lubricate. √√√√
24 * Throttle lever hous-
ing and cable
•Check operation and correct if necessary.
•Check throttle cable free play and adjust if neces-
sary.
•Lubricate throttle lever housing and cable.
√√√√√
25 * Front and rear brake
switches •Check operation and correct if necessary. √√√√√
26 * Lights and switches •Check operation and correct if necessary.
•Adjust headlight beams. √√√√√
NO. ITEM CHECK OR MAINTE-
NANCE JOB
Whichever
comes first
INITIAL EVERY
month136612
km
(mi)
320
(200)
1300
(800)
2500
(1600)
2500
(1600)
5000
(3200)
hours 20 80 160 160 320

–12 –
CHK
ADJ
ADJUSTING THE FRONT SHOCK ABSORBERS (for models equipped
with two compression damping adjusters)
CHASSIS
EBS00111
ADJUSTING THE FRONT SHOCK
ABSORBERS (for models equipped with
two compression damping adjusters)
WARNING
_
Always adjust the spring preload, rebound
damping force and compression damping
force of both front shock absorbers to the
same setting. Uneven adjustment can
result in poor handling and loss of stability.
1. Adjust:
•spring preload
▼▼▼▼ ▼ ▼▼▼▼ ▼ ▼▼▼▼ ▼ ▼▼▼▼ ▼ ▼▼▼▼ ▼ ▼▼▼▼ ▼▼▼
a. Elevate the front wheels by placing a suit-
able stand under the frame.
b. Loosen the locknut 1.
c. Turn the adjusting ring 2in direction aor
b.
NOTE:
_
•Be sure to remove all dirt and mud from
around the locknut and adjusting ring before
adjustment.
•The length of the spring (installed) changes
1.5 mm (0.06 in) per turn of the adjuster.
CAUTION:
_
Never attempt to turn the adjusting ring
beyond the maximum or minimum setting.
Direction a
Spring preload is
increased (suspension
is harder).
Direction b
Spring preload is
decreased (suspension
is softer).
Adjusting length c
Standard: 255 mm (10.0 in)
Minimum: 246.5 mm (9.7 in)
Maximum: 261.5 mm (10.3 in)
1
2
a
b
c

–13 –
CHK
ADJ
ADJUSTING THE FRONT SHOCK ABSORBERS (for models equipped
with two compression damping adjusters)
d. Tighten the locknut 1with a steering nut
wrench 3.
NOTE:
Set the torque wrench at a right angle to the
steering nut wrench.
NOTE:
_
Always tighten the locknut against the adjust-
ing ring, then torque it to specification.
▲▲▲▲ ▲ ▲▲▲▲ ▲ ▲▲▲▲ ▲ ▲▲▲▲ ▲ ▲▲▲▲ ▲ ▲▲▲▲ ▲▲▲
Steering nut wrench
P/N. YU-33975, 90890-01443
T
R
.
.
Locknut
30 Nm (3.0 m ·kg, 22 ft ·lb)
2. Adjust:
•rebound damping force
▼▼▼▼ ▼ ▼▼▼▼ ▼ ▼▼▼▼ ▼ ▼▼▼▼ ▼ ▼▼▼▼ ▼ ▼▼▼▼ ▼▼▼
a. Turn the adjusting screw 1in direction a
or b.
NOTE:
Make sure that the position indicator marks c
are aligned when the shock absorber is set to
the standard setting.
CAUTION:
_
Do not force the adjuster past the minimum
or maximum extent of adjustment. The
adjuster may be damaged.
▲▲▲▲ ▲ ▲▲▲▲ ▲ ▲▲▲▲ ▲ ▲▲▲▲ ▲ ▲▲▲▲ ▲ ▲▲▲▲ ▲▲▲
Direction aRebound damping force
is increased.
Direction bRebound damping force
is decreased.
From the fully turned-in position
Standard: 10 clicks out
Minimum: 20 clicks out
Maximum: 1 click out

–14 –
CHK
ADJ
ADJUSTING THE FRONT SHOCK ABSORBERS (for models equipped
with two compression damping adjusters)
3. Adjust:
•compression damping force (fast compres-
sion damping)
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a. Turn the adjusting bolt 1in direction aor
b.
NOTE:
_
Make sure that the position indicator marks c
are aligned when the shock absorber is set to
the standard setting.
CAUTION:
Do not force the adjuster past the minimum
or maximum extent of adjustment. The
adjuster may be damaged.
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Direction aCompression damping
force is increased.
Direction bCompression damping
force is decreased.
Standard: Adjusting bolt 1 turn out from
the fully turned in position
Minimum (soft): Adjusting bolt 3 turns
out from the fully turned in position
Maximum (hard): Adjusting bolt fully
turned in