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Yamaha 50 User Manual

Yamaha 50
90 pages
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Trouble Recovery
73
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
EMU29440
Impact damage
WARNING
EWM00870
The outboard motor can be seriously
damaged by a collision while operating or
trailering. Damage could make the out-
board motor unsafe to operate.
If the outboard motor hits an object in the wa-
ter, follow the procedure below.
1. Stop the engine immediately.
2. Inspect the control system and all com-
ponents for damage. Also inspect 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 inspect the out-
board motor before operating it again.
EMU29463
Replacing fuse
If the fuse has blown on an electric start
model, open the fuse holder and replace the
fuse with a new one of the proper amperage.
WARNING
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.

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Yamaha 50 Specifications

General IconGeneral
Engine Type4-stroke, SOHC
Cylinders3
Fuel Induction SystemEFI
Prop Shaft Horsepower50hp
Full Throttle RPM Range5000-6000 rpm
Starting SystemElectric
Fuel SystemEFI
Shaft Length20 inches
Alternator Output17A

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