6 - 2
–+ELEC
 
12
3
456
7
0
98
 
A
B
F
EC
D
 
ELECTRICAL COMPONENTS AND WIRING DIAGRAM
TT-R90E 
EC611000 
ELECTRICAL COMPONENTS 
1 
Main switch 
2 
“ENGINE STOP” 
switch 
3 
Thermo switch 
4 
Ignition coil 
5 
CDI unit 
6 
Battery 
7 
Rectifier/regulator 
8 
Neutral switch 
9 
CDI magneto 
0 
Carburetor heater 
A 
Starter relay 
B 
Fuse 
C 
Start switch 
D 
Spark plug 
E 
Starter motor 
F 
Starting circuit cut-off
relay 
COLOR CODE 
B ...................... Black
Br .................... Brown
G ..................... Green
O ..................... Orange
R ..................... Red
Sb .................... Sky blue
W ..................... White
Y ...................... Yellow 
EC612000 
WIRING DIAGRAM
G/WB/RW/LW/RBr G
RW
B/WBr BRB/WBBrR
B/WB BB
BR/WBr B
GG/W
B/W
B/W
BrB/RWWOO
B
BW/LY/RR
W
B
B
R
W/RY/R
OFF RUNB
Y/R
Y
Y
OBO BY/RYB B
Sb
W W
Sb
ON OFF
OFFON
Y
BBY/R
Br
Br
B
B
R
RR
R
B
R/WR/W
R/WR/W
R/W
Sb
Sb
RB
R/WB R
Y/RRB W
B/WB
R/W
R/W
R/W
Sb
9
8
1 B5
4
D
2 3
=A
E 6
C
F 7
 
B/R ................... Black/Red
B/W .................. Black/White
G/W.................. Green/White
R/W .................. Red/White
W/L .................. White/Blue
W/R .................. White/Red
Y/R ................... Yellow/Red