5-6
ANALOG TACHOMETER
ANALOG TACHOMETER DIMENSIONS
POLE NUMBER SET UP
Yamaha tachometer shows the engine RPM by receiving the pulse signal from lighting coil.
The flywheel magneto used on Yamaha outboard motors varies in number of poles used: 4-pole, 6-
pole and 12-pole.
It is necessary to adjust the calibration switch on the back of gauge to correspond to the particular
motor being used.
The initial setting is 12-pole. Adjust if necessary.
(*1) Mechanical RC
POLE NUMBER ADJUSTMENT
1. Remove the rubber grommet (1) from the back
of meter.
2. Turn the rotating switch (2) with a slotted-head
screwdriver to the required position.
3. Reinstall the grommet.
Description Applicable model
4-pole 6 – 15, 55B, E/40G, E40J, E48C, E55C, EK40G, EK40J
6-pole
20D, 25N, 30D, 40V, 50H, 60F
70B, E/25B, EK25B, E/30H, E/40X, E60H, F8C (F8A), FT8D, F9.9J (F9.9B)
12-pole 55D, 75A, 75C, 85A, 90A, V4, V6, E75B, F15 (6AG) – F250
(*1)
93 (3.66)
11.2 (0.44) 65 (2.56)
28.9 (1.14)
200 (7.87)
200 (7.87)
84.5 (3.33)
210 (8.27)
93 (3.66)
11.2 (0.44) 65 (2.56)
28.9 (1.14)
200 (7.87)
200 (7.87)
84.5 (3.33)
210 (8.27)
R
P
Br
B
X
R
YB
G
P
Y
mm (in.)mm (in.)
3-indicator for 250G & L250G 2-indicator for 4-stroke and oil injected
2-stroke engines (except 250G & L250G)
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