Yamaha E70 Owners Manual

							Trouble Recovery
95
Q. Is fuel joint connection incorrect?
A. Connect correctly.
Q. Is heat range of spark plug incorrect?
A. Inspect spark plug and replace it with rec-
ommended type.
Q. Is high pressure fuel pump drive belt bro-
ken?
A. Have serviced by a Yamaha dealer.
Q. Is engine not responding properly to shift
lever position?
A. Have serviced by a Yamaha dealer.
Engine vibrates excessively.
Q. Is propeller damaged?
A. Have propeller repaired or replaced.
Q. Is propeller shaft damaged?
A. Have serviced by a Yamaha dealer.
Q. Are weeds or other foreign matter tangled
on propeller?
A. Remove and clean propeller.
Q. Is motor mounting bolt loose?
A. Tighten bolt.
Q. Is steering pivot loose or damaged?
A. Tighten or have serviced by a Yamaha
dealer.
EMU29433
Temporary action in 
emergency
EMU29441
Impact damage
WA R N I N G
EWM00870
The outboard motor can be seriously
damaged by a collision while operating ortrailering. Damage could make the out-
board motor unsafe to operate.
If the outboard motor hits a n  o b j e c t  i n  t h e  w a -
ter, follow the procedure below.
1. Stop the engine immediately.
2. Check the control system and all compo-
nents for damage. Also, check the boat
for damage.
3. Whether damage is found or not, return
to the nearest harbor slowly and careful-
ly.
4. Have a Yamaha dealer check the out-
board motor before operating it again.
EMU30682
Replacing fuse
If a fuse has blown, open the fuse holder and
remove the fuse with a fuse puller. Replace
it with a spare one of the proper amperage.
WA R N I N G
EWM00631
Substituting an incorrect fuse or a piece
of wire could allow excessive current
flow. This could cause electric system
damage and a fire hazard.
Consult your Yamaha dealer if the new fuse
immediately blows again.
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							Trouble Recovery
96
EMU29524
Power trim and tilt will not operate
If the engine cannot be tilted up or down with
the power trim and tilt because of a dis-
charged battery or a failure with the power
trim and tilt unit, the engine can be tilted
manually.
1. Loosen the manual valve screw by turn-
ing it counterclockwise until it stops.
2. Put the engine in the desired position,
then tighten the manual valve screw by
turning it clockwise.
1. Fuse (20 A  3, 30 A)
2. Spare fuse (20 A  3, 30 A)
3. Fuse puller
1. Fuse (15A, 20 A, 30 A)
2. Spare fuse (15A, 20 A, 30 A)
3. Fuse puller
3
2
1
1 2
ZMU05099
2
13
ZMU07093
1. Fuse puller
1. Manual valve screw
1
ZMU04337
1
ZMU03668
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							Trouble Recovery
97
EMU41460
Water separator-alert indicator blinks 
while cruising
WA R N I N G
EWM01500
Gasoline is highly flammable, and its va-
pors are flammable and explosive.
●Do not perform this procedure on a hot
or running engine. Allow the engine to
cool.
●There will be fuel in the fuel filter. Keep
away from sparks, cigarettes, flames or
other sources of ignition.
●This procedure will allow some fuel to
spill. Catch fuel in a rag. Wipe up any
spilled fuel immediately.
●The fuel filter must be reassembled
carefully with the O-ring, filter cup, and
hoses in place. Improper assembly or
replacement could result in a fuel leak,
which could result in a fire or explosion
hazard.
If the water separator-alert indicator on the
Command Link tachometer blinks, perform
the following procedure.
F50, F60, T50, T60
1. Stop the engine.
2. Remove the top cowling.
3. Remove the plastic tie.4. Disconnect the water detection switch
coupler. NOTICE: Be careful not to get
any water on the water detection
switch coupler, otherwise a malfunc-
tion could occur.
 [ECM01950] 
5. Unscrew the filter cup from the filter
housing. NOTICE: Be careful not to
twist the water detection switch lead
when unscrewing the filter cup.
[ECM01960] 
1. Water separator-alert indicator
1. Plastic tie
1. Water detection switch coupler
1
ZMU05475
1
ZMU05476
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							Trouble Recovery
98
6. Drain the water in the filter cup by soak-
ing it up with a rag.
7. Firmly screw the filter cup onto the filter
housing. NOTICE: Be careful not to
twist the water detection switch lead
when screwing the filter cup onto the
filter housing.
 [ECM01970] 
8. Connect the water detection switch cou-
pler securely until a click is heard.
9. Fasten the water detection switch lead
with the plastic tie.10. Install the top cowling.
11. Start the engine and make sure that the
water separator-alert indicator remains
off. Have a Yamaha dealer inspect the
outboard motor after returning to port.
F70
1. Stop the engine.
2. Remove the top cowling.
3. Remove the cover.
4. Remove the holder.
1. Filter cup
2. Water detection switch lead
1. Water detection switch coupler
1
2
ZMU05477
1
ZMU05509
1. Plastic tie
1
ZMU05475
ZMU07095
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							Trouble Recovery
99
5. Disconnect the water detection switch
coupler. NOTICE: Be careful not to get
any water on the water detection
switch coupler, otherwise a malfunc-
tion could occur.
 [ECM01950] 
6. Unscrew the filter cup from the filter
housing. NOTICE: Be careful not to
twist the water detection switch lead
when unscrewing the filter cup.
[ECM01960] 7. Drain the water in the filter cup by soak-
ing it up with a rag.
8. Firmly screw the filter cup onto the filter
housing. NOTICE: Be careful not to
twist the water detection switch lead
when screwing the filter cup onto the
filter housing.
 [ECM01970] 
9. Connect the water detection switch cou-
pler securely until a click is heard.
10. Fasten the water detection switch lead
with the holder.
1. Holder
1. Water detection switch coupler
1ZMU07094
1ZMU07096
1. Filter cup
2. Water detection switch lead
1. Water detection switch coupler
21ZMU07097
1ZMU07100
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							Trouble Recovery
100
11. Install the cover.
12. Install the top cowling.
13. Start the engine and make sure that the
water separator-alert indicator remains
off. Have a Yamaha dealer inspect the
outboard motor after returning to port.
EMU29542
Starter will not operate
If the starter mechanism does not operate
(the engine cannot be cranked with the start-
er), the engine can be started manually with
an emergency starter rope. However, the en-
gine cannot be started manually if the battery
voltage is low. If the battery is discharged to
9 volts or below, the electric fuel pump will
not operate.
WA R N I N G
EWM01022
●Use this procedure only in an emergen-
cy to return to the nearest port for re-
pairs.
●When the emergency starter rope is
used to start the engine, the start-in-
gear protection device does not oper-
ate. Make sure the remote control lever
is in neutral. Otherwise the boat could
unexpectedly start to move, which
could result in an accident.
●Attach the engine shut-off cord to a se-cure place on your clothing, or your
arm or leg while operating the boat.
●Do not attach the cord to clothing that
could tear loose. Do not route the cord
where it could become entangled, pre-
venting it from functioning.
●Avoid accidentally pulling the cord dur-
ing normal operation. Loss of engine
power means the loss of most steering
control. Also, without engine power,
the boat could slow rapidly. This could
cause people and objects in the boat to
be thrown forward.
●Make sure no one is standing behind
you when pulling the starter rope. It
could whip behind you and injure
someone.
●An unguarded, rotating flywheel is very
dangerous. Keep loose clothing and
other objects away when starting the
engine. Use the emergency starter rope
only as instructed. Do not touch the fly-
wheel or other moving parts when the
engine is running. Do not install the
starter mechanism or top cowling after
the engine is running.
●Do not touch the ignition coil, spark
plug wire, spark plug cap, or other elec-
trical components when starting or op-
erating the motor. You could get an
electrical shock.
EMU29583
Emergency starting engine
1. Remove the top cowling.
2. Remove the flywheel cover.
1. Holder
1ZMU07094
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							Trouble Recovery
101
3. Prepare the engine for starting. For fur-
ther information, see page 58. Be sure
the engine is in neutral and that the clip
is attached to the engine shut-off switch.
4. Turn on the main switch.5. Insert the knotted end of the emergency
starter rope into the notch in the flywheel
rotor and wind the rope around the fly-
wheel several turns clockwise.
6. Give a strong pull straight out to crank
the engine. Repeat if necessary.
WARNING! Do not install the top
cowling when engine is running.
[EWM00621] EMU33501
Treatment of submerged motor
If the outboard motor is submerged, immedi-
ately take it to a Yamaha dealer. Otherwise
some corrosion may begin almost immedi-
ately. NOTICE: Do not attempt to run the
outboard motor until it has been com-
pletely inspected.
 [ECM00401] 
ZMU03670
ON START OFF
ZMU01906
ZMU07099
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							102
Consumer information
EMU29830
YAMAHA MOTOR CORPORATION, U.S.A.
 FOUR-STROKE OUTBOARD MOTOR
 THREE-YEAR LIMITED WARRANTY
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							Consumer information
103
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							Consumer information
104
EMU29841
IMPORTANT WARRANTY INFORMATION IF YOU USE YOUR 
YAMAHA OUTSIDE THE USA OR CANADA
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