Tps Replacement And Adjustment - Yamaha WR450F(W) Owner's Service Manual

TPS (THROTTLE POSITION SENSOR) SYSTEM
1
3. Inspect:
Tester (+) lead → Yellow lead 1
Tester (–) lead → Black lead 2

TPS REPLACEMENT AND ADJUSTMENT

1. Remove:
2
2. Remove:
1
NOTE:
Loosen the screw (TPS) using the T25 bit.
3. Replace:
4. Install:
NOTE:
b a
• Align the slot a in the TPS with the projec-
• Temporarily tighten the screw (TPS).
2
5. Install:
6 - 20
• TPS coil variable resistance
Check that the resistance in increased as
the throttle grip is moved from the full
close position to the full open position.
Out of specification → Replace.
TPS coil variable
resistance
Full closed Full opened
0 ~ 2 kΩ
at 20 °C
(68 °F)
• TPS coupler
• Carburetor
• Screw (TPS) 1
• TPS 2
• TPS
• TPS 1
• Screw (TPS) 2
tion b on the carburetor.
• Carburetor
• TPS coupler
–
ELEC
Tester selec-
tor position
kΩ × 1
4 ~ 6 kΩ
at 20 °C
(68 °F)
+