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Sym JOYMAX 250 User Manual

Sym JOYMAX 250
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2. Maintenance Information
2-8
Ignition System
Caution
C.D.I ignition system is set by manufacturer
so it can not be adjusted.
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 in front
upper side of engine right cover.
Connect tachometer and ignition lamp.
Start engine.
As engine in idle speed: 2,500 rpm, aim at the “F”
mark with the ignition lamp. Then, it is means
that ignition timing is correct.
Increase engine speed to 6,000 rpm to check
ignition advance degree. If indent is located within
the ignition advance degrees, it is means that the
ignition advance degree is in normal.
If ignition timing is incorrect, check CDI set, pulse
rotor and pulse generator. Replace it if
malfunction of these parts is found.
Spark Plug
Recommended spark plug: CR8E
Remove luggage box
Remove central 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.
Tighten torque: 1.0~1.2kgf-m
Connect spark plug cap
0.6~0.7mm
Ground electrode
Central electrode
Spark plug
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Sym JOYMAX 250 Specifications

General IconGeneral
BrandSym
ModelJOYMAX 250
CategoryScooter
LanguageEnglish

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