Lower unit
2-17
Lower unit
Overview
This model uses the proven lower unit that is
used on F115 (6EK). Therefore, required spe-
cial service tools and service procedures for
F115 (6EK) apply to this model
also.
Bracket unit
Upper case
The upper case with oil pan is used to reduce
the weight. Therefore, the upper case “1”, “2”
has been separated into 2 pieces, upper part
and lower part. Alumite treatment has also
been applied to improve the resistance against
corrosion.
Upper mount, lower mount
The large-size upper mount piece “1” and low-
er mount that are equipped on F150 (63P)-
class models
are used on this model. As a re-
sult, vibrations that occur at low engine speeds
have been red
uced.
PTT unit
This model uses the PTT unit of the same type
as the F115 (6EK).
The up-relief hydraulic pressure setting has
been changed from 16.0 MPa (160.0 kgf/cm²,
2320.0 psi [F115/6EK])
to 12.5 MPa (125.0
kgf/cm², 1812.5 psi) to match this model.
Electrical system
Hour meter (tiller handle model)
The hour meter has been incorporated on the
F75FEHT and F100GEHT.
The hour meter makes it possible to check the
operating hours of the outboard motor,
which is
used to keep track of periodic checks and ad-
justments, and so on.
When the engine switch is turned on, all LEDs
on the display will il
luminate for two seconds,
and then the operating hours will be displayed.
A signal from the ECM, via the green and white
(G/W) lead, is sent to the hour
meter as the op-
erating hours accumulate.
The value of the operating hours cannot be re-
set.
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