Wiring Diagram - Yanmar 3YM30 Sevice Manual

12.1.1 Wiring diagram

For B-type instrument panel
(Color coding)
R Red
B Black
W White
L Blue
RB Red / Black
LB Blue / Black
YW Yellow / White
YG Yellow / Green
WL White / Blue
WG White / Green
GR Green / Red
O Orange
WBr White / Brown
Alarm lamps
Sail
Buzzer CFW drive
oil press. temp. seal Charge
YW WL YG LB
diodes
Stop switch
fuse (3A)
R WBr
W
17 AC
R
30
G2 G1
L L
Key switch
B
Wire
O
harness
+ - P
Option
L=3M
Tacho meter
hour meter
Instrument panel
Allowable Length by
cross sectional area
of battery cable
Section of cable Allowable Length
L=1+2+3(m)
(mm 2 )
15(mm 2 )
<0.86(m)
20(mm 2 )
<1.3(m)
2
30(mm ) <2.3(m)
40(mm 2 ) <2.8(m)
50(mm 2 ) <3.5(m)
60(mm 2 )
<4.1(m)
2R
+
-
2B
Eng.stop solenoid
2B
5R 3BR 2B 2B
119717
2L
Relay
WBr
-77800
128990-77910
Stop Relay
Grow plug
119247-77100
0.85YW
0.85WL
C.W. temp. switch Eng. oil pressure switch
A
Wire harness
Option
B
-
A L
L=6M
YG
RB
+
Amplifier
only for sail drive
184
Procured by customer
12V
Battery
+ -
Battery switch
2B
2W
B
S
2R 5R
B
W/Y
Starter relay
120270
2W
-77511 Starter
3R
10B
E
10R
B
Earth bolt
L
R
Y
Alternator
0.85YG 0.85B
0.85 O
Sail drive
only for sail drive
Key switch
30 AC G1 G2 17
GLOW
3R 3W
YW WL WG B
OFF
3L
RB LB O YG
ON
START
Coupler
(View from A-A)
12. Electrical System