KYMCO MXU400 User Manual

Ignition Timing 10° BTDC @ 1500 RPM
Spark Plug Type NG K CR8E
Spark Plug Gap 0.7-0.8 mm (0.028-0.032 in.)
Spark Plug Cap 4000-6000 ohms
I
g
nition Coil
(
p
rimar
y
)
Resistance
(
secondar
y)
Less than 1 ohm
(terminal
to terminal)
2900-3400
ohms (high tension -
plug cap removed - to ground)
I
g
nition Coil
(p
rimar
y
/CDI
)
Peak Voltage
250-375
DC volts
(black/yellow
to black)
Stator Coil (trigger)
Resistance (charging)
90-110 ohms
(
g
reen
/
white to
blue/
y
ellow
)
Less than 1 ohm
(
y
ellow to
y
ellow
)
Peak Voltage (trigger) 7.8-9.3 volts (green to blue)
AC Generator (no load)
Output
60 AC volts @ 3000 RPM
(black
to black)
Generator Output (approx) 220W @ 5000 RPM
Electrical System
This section has been organized into sub-sections
whi c h show procedures for the complete servicing of
the
KYMCO ATV electrical system.
NOTE: Some photographs and illustrations used
RPM Limiter
NOTE: The ATV is equipped with a CDI that
retards
ignition timing when maximum RPM is
approached.
When the RPM limiter is activated, it
could
be misinterpreted as a high-speed misfire.
in
this section are used for clarity purposes only
and are not designed to depict actual conditions.
SPECIAL TO OLS
A number of spe cial tools must be available to the
technic
i an when performing service procedures in this
section.
Description p/n
Fluke Model 73 Multimeter
Peak Voltage Reading Adapter
NOTE: Special tools are available from the
KYMCO Spare Parts Department.
Tes t ing Electrical
Components
All of the electrical tests should be made using the
Fluke
Model 73 Multimeter and when te sting peak
voltage, the Peak Vo ltage Reading Adapt e r must be
used. If any oth e r type of mete r is used, readings may
vary
due to internal circuitry. When t roubleshooting a
specific component, al ways verify first that the fuse(s)
are
good, that the bulb(s) are good, tha t the connec-
tions are clean and tight, that the battery is fully
charged,
a nd that all appropriate switches are acti-
vated.
NOTE: For absolute accuracy, all tests should be
made
at room temperature of 68° F.
Specifications
Accessory
Receptacle/Connector
NOTE: This test procedure is for either the recep-
tacle
or the connector.
VOLTAGE
1. Turn the ignition switch to the ON position; then
set the mete r select or to the DC Vo ltage position.
2.
Connect the red te ster le ad to the red w i re ; then
connec
t the bla c k tes t er le ad to ground.
3.
The meter must show battery voltage.
NOTE: If the meter shows no battery voltage,
troubleshoot
the battery, fuse, receptacle, connec-
tor,
or the main wiring harness.
Battery
For battery related information, s ee Section 2.
5-2

KYMCO MXU400 Specifications

General

Brand	KYMCO
Model	MXU400
Category	Offroad Vehicle
Language	English