6 - 1
–+ELEC
ELECTRICAL COMPONENTS AND WIRING DIAGRAM
EC600000
ELECTRICAL
EC610000
ELECTRICAL COMPONENTS AND WIRING DIAGRAM
EC611000
ELECTRICAL COMPONENTS
1
Headlight
2
“ENGINE STOP” button
3
Regulator
4
TPS (throttle position sensor)
5
Tail light
6
CDI magneto
7
Neutral switch
8
Ignition coil
9
Spark plug
0
Lights switch
A
CDI unit
COLOR CODE
B...................... Black
Br .................... Brown
G ..................... Green
Gy ................... Gray
L ...................... Blue
O ..................... Orange
P...................... Pink
R ..................... Red
EC612000
WIRING DIAGRAM
Sb .................... Sky blue
W ..................... White
Y ...................... Yellow
B/L ................... Black/Blue
B/W .................. Black/White
L/W .................. Blue/White
R/W .................. Red/White
6
B/L
R/WL/W
LY
L
Y
B
1B L
L YBLB YL BY
BYYLB
5LB
BYBL
LB
3
7
4 8
9
W
R Br
G P
BP
B Br
G W
R
O
L B
Y Sb
B/LSb
B/L B
Y O
L
A
2
Y
Br
B/WBB/WB
PGR
WB
L YL Y
B B/L
SbSbW
Sb
WL/W
R/WL/W
R/WSb
W2
N
13
4
5
O
B
0
6
B/WGyB/WGy
6 - 11
–+ELECLIGHTING SYSTEM
LIGHTING SYSTEM
INSPECTION STEPS
Refer to the following flow chart when inspecting the ignition system for possible ploblems.
NOTE:
lReplace the bulb and/or bulb socket.
1) Seat
2) Fuel tank
lUse the following special tool.
Check the bulb and bulb
socket.Replace the bulb
and/or bulb socket.
Check the lights switch. Replace.
Check the CDI magneto. Lighting coil Replace.
Check the entire lighting sys-
tem proper for connections.Repair or replace.
Replace the regulator.
Pocket tester:
YU-03112/90890-03112
OK
OK
OK
OK
No good
No good
Improperly connected
No good
6 - 12
–+ELECLIGHTING SYSTEM
LIGHT SWITCH INSPECTION
1. Inspect:
lLights switch conduct
No continuity while being ® Replace.
Continuity while being OFF ® Replace. Tester (+) lead ® Yellow lead 1
Tester (–) lead ® Blue lead 2
Y
1L
2Tester selec-
tor position
W ´ 1
OFF
CDI MAGNETO INSPECTION
1. Inspect:
lLighting coil resistance
Out of specification ® Replace.
Tester (+) lead ® Yellow lead 1
Tester (–) lead ® Black lead 2
Lighting coil
resistanceTester selector
position
0.16 ~ 0.24 W at
20 ˚C (68 ˚F)W ´ 1
7 - 1
TUN
EC700000
TUNING
EC710000
ENGINE
Carburetor setting
l
The air/fuel mixture will vary depending on
atmospheric conditions. Therefore, it is nec-
essary to take into consideration the air pres-
sure, ambient temperature, humidity, etc.,
when adjusting the carburetor.
l
Perform a test run to check for proper engine
performance (e.g., throttle response) and
spark plug(-s) discoloration or fouling. Use
these readings to determine the best possi-
ble carburetor setting.
NOTE:
It is recommended to keep a record of all car-
buretor settings and external conditions (e.g.,
atmospheric conditions, track/surface condi-
tions, lap times) to make future carburetor set-
ting easier.
WARNING
l
The carburetor is a part of the fuel line.
Therefore, be sure to install it in a well-
ventilated area, away from flammable
objects and any sources of fire.
l
Never look into the carburetor intake.
Flames may shoot out from the pipe if the
engine backfires while it is being started.
Gasoline may be discharged from the
accelerator pump nozzle when the carbu-
retor has been removed.
CAUTION:
l
The carburetor is extremely sensitive to
foreign matter (dirt, sand, water, etc.).
During installation, do not allow foreign
matter to get into the carburetor.
l
Always handle the carburetor and its
components carefully. Even slight
scratches, bends or damage to carbure-
tor parts may prevent the carburetor from
functioning correctly. Carefully perform
all servicing with the appropriate tools
and without applying excessive force.
l
When the engine is stopped or when
riding at no load, do not open and close
the throttle unnecessarily. Otherwise, too
much fuel may be discharged, starting
may become difficult or the engine may
not run well.
SETTING
7
