–+ELEC
6 - 17
CARBURETOR HEATING SYSTEM
CARBURETOR HEATING SYSTEM
INSPECTION STEPS
Use the following steps for checking the possibility of the malfunctioning carburetor heating system.
NOTE:
Remove the following parts before inspection.
1) Seat
2) Fuel tank
Use the following special tools in this inspection.
Pocket tester:
YU-3112-C/90890-03112
Check entire carburetor
heating system for connec-
tion.Repair or replace.
Check thermo switch. Replace.
Check carburetor heater. Replace.
Check CDI magneto. Lighting coil Replace.
Replace rectifier/regulator.
OK
OK
OK
OK
No good
No good
No good
No good
6 - 20
–+ELECCARBURETOR HEATING SYSTEM
CARBURETOR HEATER INSPECTION
1. Inspect:
Carburetor heater resistance
Out of specification → Replace.
Tester (+) probe
→
Carburetor heater terminal
1
Tester (–) probe
→
Carburetor heater body
2
Carburetor
heater resistanceTester selector
position
6 ~ 10
Ω at
20 °C (68 °F)Ω
× 1
CDI MAGNETO INSPECTION
1. Inspect:
Lighting coil resistance
Out of specification → Replace.
ÈTT-R90
ÉTT-R90E
Tester (+) lead
→ Yellow lead
1
Tester (–) lead
→ Black lead
2
Lighting coil
resistanceTester selector
position
TT-R90:
0.28 ~ 0.42
Ω at
20 °C (68 °F)
TT-R90E:
0.52 ~ 0.78
Ω at
20 °C (68 °F)Ω
× 1
W
Y
B
WSb
YB
1
2
1
2
È
É
