2001 YAMAHA YZ426F ad blue

6 - 10
–+ELEC

TPS (THROTTLE POSITION SENSOR) SYSTEM
6. Adjust:
l
TPS coil resistance at idle speed
Adjustment steps:
Adjust the angle of the TPS
1
to obtain
the resistance calculated (example: 650 ~
750
W
)
Tester (+) lead
®
Yellow lead
2

Tester (–) lead
®
Black lead
3

7. Tighten:
l
Screw (TPS)
1

8. Install:
l
TPS coupler
EC694000
TPS INPUT VOLTAGE INSPECTION
1. Disconnect the TPS coupler.
2. Start the engine.
3. Inspect:
l
TPS input voltage
Out of specification
®
Replace the CDI
unit.
Tester (+) lead
®
Blue lead
1

Tester (–) lead
®
Black lead
2

TPS input
voltageTester selector
position
4 ~ 6 V DCV-20

7 - 19
TUN

SETTING
EC72Q000
Rear shock absorber setting parts
l
Rear shock spring
1

[Equal pitch spring]
[Unequal pitch spring]
*For EUROPE
NOTE:

l
The unequal pitch spring is softer in initial
characteristic than the equal pitch spring and
is difficult to bottom out under full compres-
sion.
l
The I.D. color
a
is marked at the end of the
spring.
l
Extent of adjustment (spring length)
TYPESPRING
RATESPRING
PART NUMBERI.D.
COLOR/
POINTSPRING
FREE
LENGTH
SOFT4.4
4.6
4.8
5.0
5.25DH-22212-70
5DH-22212-10
5DH-22212-20
5DH-22212-30
5DH-22212-40Brown/1
Green/1
Red/1
Black/1
Blue/1260
260
260
260
260
STD 5.4 5DH-22212-50 Yellow/1 265
STIFF 5.65DH-22212-60 Pink/1 265
TYPESPRING
RATE
(approx.)SPRING
PART NUMBERI.D.
COLOR/
POINTSPRING
FREE
LENGTH
SOFT4.6
4.8
5.0
5.25ET-22212-20
5ET-22212-00
5ET-22212-10
5ET-22212-30Green/2
Red/2
Black/2
Blue/2275
275
275
275
*STD 5.4 5ET-22212-40 Yellow/2 275
STIFF 5.65ET-22212-50 Pink/2 280

SPRING FREE
LENGTHEXTENT OF
ADJUSTMENT
b

260 mm (10.24 in)242 ~ 260 mm
(9.53 ~ 10.24 in)
265 mm (10.43 in)247 ~ 265 mm
(9.72 ~ 10.43 in)
275 mm (10.83 in)257 ~ 275 mm
(10.12 ~ 10.83 in)
280 mm (11.02 in)262 ~ 280 mm
(10.31 ~ 11.02 in)