2. Maintenance Information
2-8
Ignition System
Ignition Timing
Caution
z C.D.I ignition system is set by manufacturer
so it can not be adjusted
z Ignition timing check procedure is for
checking whether CDI function is in normal or
not.
Remove right side cover.
Remove ignition timing hole cap located on the
cooling fan cap. Or remove the cooling fan cover.
Connect tachometer and ignition lamp.
Start engine
Set engine idle speed in1700 rpm, and if the mark
aligns with the “F”, then it means that ignition
timing is correct.
Increase engine speed to 4000 rpm to check
ignition timing advance. If the detent aligns with
advance mark “II”, then it means ignition timing
advance is in functional. If not, check CDI set,
pulse flywheel, and pulse generator. Replace
these components if malfunction of these parts are
found.
Spark Plug
Appointed spark plug：CR6HSA (NGK)
Remove luggage box.
Remove center cover
Remove spark plug cap
Clean dirt around the spark plug hole.
Remove spark plug
Measure spark plug gap
Spark plug gap：0.6~0.7 mm
Carefully bend ground electrode of the plug to
adjust the gap if necessary
Hold spark plug washer and install the spark plug
by screwing it.
Tighten the plug by turning 1/2 turn more with plug
socket after installed.
Torque value: 1.0~1.2kgf-m
Connect spark plug cap.
“F” Mark
0.6~0.7mm
Side electrode
Center electrode
Plug cap
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