6-9
TPS (THROTTLE POSITION SENSOR) SYSTEM
ELEC
L Y
B
1
2
1
2
EC624000
COUPLERS AND LEADS CONNECTION
INSPECTION
1. Check:
9
Couplers and leads connection
Rust/ Dust/ Looseness/Short-circuit
→
Repair or replace.
EC692000
TPS COIL INSPECTION
1. Remove:
9
Carburetor
9
Mixing chamber top
Refer to “CARBURETOR AND REED
VALVE” section in the CHAPTER 4.
2. Inspect:
9
TPS coil resistance
Out of specification
→
Replace.
Tester (+) lead
→
Blue
lead
1
Tester (–) lead
→
Black
lead
2
TPS coil
Tester selector
resistance
position
4~6k
Ω
at
k
Ω ×
1
20°C (68°F)
EC69A000
HANDLING NOTE
c
C
Do not loosen the screws {TPS (throttle
position sensor)} except when changing
the TPS (throttle position sensor) due to
failure because it will cause a drop in
engine performance.
5NX-9-30-6 6/5/01 4:44 PM Page 24
Summary of Contents for YZ250(P)/LC
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