Yamaha YZ450F(X) Owner's Service Manual page 174

3. Inspect:
• Charging coil 2 resistance
→
Out of specification
→
Tester (+) lead Pink lead "1"
→
Tester (-) lead Black lead "2"
Charging Tester se-
coil 2 resis- lector posi-
tance
Ω
44-66 at
20 °C (68
°F)
CHECKING THE NEUTRAL
SWITCH
1. Inspect:
• Neutral switch conduction
→
Tester (+) lead Sky blue lead
"1"
→
Tester (-) lead Ground "2"
Result
Conductive (while gear
is in neutral)
Not conductive while it is in neutral
Replace.
Conductive while it is engaged
place.
Set the tester selection position to
Ω
" × 1".
CHECKING THE CDI UNIT
Check all electrical components. If no
fault is found, replace the CDI unit.
Then check the electrical compo-
nents again.
Replace.
tion
Ω
×10
→
→
Re-
6-4
IGNITION SYSTEM