Ignition System/Spark Plug - Sym Fiddle III 50 Service Manual

2. MAINTENANCE INFORMATION SYM
IGNITION SYSTEM
F mark
Ignition timing
Caution
C.D.I ignition system is set by manufacturer
so it can not be adjusted.
Ignition timing check procedure is for
Ignition light
checking whether C.D.I. function is in normal
or not.
Remove ignition timing hole cap located on
the cooling fan cap, or remove the cooling
fan cap.
Check ignition timing with ignition light.
Start engine and set engine idle speed in
2100±100 rpm, and if the mark aligns with
the "F", then it means that ignition timing is
correct.
Increase engine speed to 8000 rpm to check
ignition timing advance. If the detent aligns
with advance mark " ", 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: TORCH A7RC
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
Spark plug cap
Carefully bend ground electrode of the plug
to adjust the gap if necessary.
Side electrode
Screw the park plug into the plug hole with
Center electrode
hands, then tighten the plug with a wrench to
prevent from damaging the spark plug's
thread.
Torque value: 1.0~1.4 kgf-m
Connect spark plug cap.
0.6~0.7mm
2-8