KYMCO MXU 450i Service Manual

2. Select the OHMS position on the tester and con-
ne
ct the red te ster lead to the lavender/red wire;
then move the gear shif t lever to the R (reverse)
position. The meter must read less than 1 ohm.
3.
Move the r e d tester lead and shift lever in turn to
the light green/red wire and N (neutr al) position,
whi
t e/black wire and H (high) position, and
whi t e/red wire and L (low) position. The meter
must
read less then 1 ohm in all positions. If not,
the gear shift linkage mus t be a djusted (se e Sec-
tion
2) or the switch must be replaced.
Stator Coil
VOLTAG E
(AC Generat o r - Regulated Output)
1. Set the meter selector to the DC Vo ltage position.
2.
Connect the red tester l ead to the positive battery
post; then connect the black te ster lead to the nega-
tive battery post.
3.
W ith the eng i ne running at a constant 3000 RPM
(with the headlights on), the meter must show 14-
15.5 DC volts.
CAUTION
Do not run the engine at high RPM for more than
10 seconds.
NOTE: If voltage is lower than specified, test
charging
coil - no load.
VOLTAG E (Chargin g Co il - No
Load )
Th e conn ec tor is the yellow thre e -pin on e on the
righ t side of the engine just above the starter motor.
NOTE: Test the engine-side of the connector.
1. Set the meter selector to the AC Vo ltage position.
2.
Test between the three yellow wires for a total of
thre e tests.
3.
W ith the engine running at the specified RPM, all
w i re te s t s must show 60 AC vo lts .
CAUTION
Do not run the engine at high RPM for more than 10
seconds.
NOTE: If both charging coil tests failed, check
all connections,
etc., and test again. If no voltage is
present,
replace the stator assembly.
RE SISTA N CE (Cha rging Coil)
CAUTION
Always disconnect the battery when performing
resistance
tests to avoid damaging the multimeter.
1. Set th e meter sel e ctor to OHMS po siti on.
2.
T e st between the t hree yellow wires for a total of
thre e tests.
3.
The meter reading must be within specification.
RE SISTA N CE (Trigger Coil)
CAUTION
Always disconnect the battery when performing
resistance
tests to avoid damaging the multimeter .
1. Disconnect the gray four-pin connector on the right
side of the engine just above the starter motor.
2. Set the meter sel e ctor to t h e OHMS position.
3.
Connect the red teste r le ad to the gre e n/white
wire; then connec t the black te ster l ead to the
blue/yellow wire. The meter reading must be
within specification.
PEAK VOLTAGE
NOTE: All of the peak voltage tests should be
made
using the Fluke Model 73 Multimeter with
Peak
Voltage
Reading Adapter. If any other type of
tester is
used, readings may vary due to internal
circuitry.
NOTE: The battery must be at full charge for
these
tests.
Tr igge r Coil
1. Set the meter sel e ctor to t h e DC Vo ltage position.
2.
Connect the red teste r le ad to the gre e n/white
wire; then connec t the bla c k tes t er le ad to the
blue/yellow wire.
3.
Crank the engine over using the electric starter.
4.
The meter reading must be within specification.
St arter Rel a y
1. Remove the seat; then using the mul timeter set to
the
DC Vo ltage position, check the relay as fol-
lows.
2.
Connect the red tester l ead to the positive battery
terminal; then connect the black te ster lead to the
starte r ca ble connection on the starter relay. The
meter
must show battery voltage.
5
-
9

KYMCO MXU 450i Specifications

General

Brand	KYMCO
Model	MXU 450i
Category	Offroad Vehicle
Language	English