Yamaha YZ250(W)/W1 Owner's Service Manual page 538

TPS (THROTTLE POSITION SENSOR) SYSTEM
8. Start the engine.
9. Adjust:
9 TPS output voltage
Adjustment steps:
Adjust the installation angle of the TPS
1 to obtain the specified output volt-
age.
TPS output
voltage
0.5~0.7V
10. Put the aligning marks a on the TPS and
carburetor.
11. Stop the engine.
12. Remove:
9 Carburetor
Refer to "CARBURETOR AND REED
VALVE" section in the CHAPTER 4.
13. Tighten:
9 Screw (TPS) 1
NOTE:
Tighten the screws (TPS) using the T20 bit (tam-
per resistant fastener type) by aligning the marks
a that were put before removal.
14. Install:
9 Carburetor
Refer to "CARBURETOR AND REED
VALVE" section in the CHAPTER 4.
6-13
ELEC
Tester selector
position
DCV-20