Yamaha 8 Cm Owners Manual

 
General information 
6 
EMU25530 
Other special situations 
There are three other rules you should be
aware of when driving your boat around oth-
er vessels. 
Narrow channels and bends 
When navigating in narrow channels, you
should keep to the right when it is safe and
practical to do so. If the operator of a power-
driven vessel is preparing to go around a
bend that may obstruct the view of other wa-
ter vessels, the operator should sound a pro-
longed blast on the whistle (4 to 6 seconds).
If...

 
General information 
7 
EMU25540 
Fueling instructions
WARNING
 
EWM00010  
GASOLINE AND ITS VAPORS ARE HIGH-
LY FLAMMABLE AND EXPLOSIVE! 
 
Do not smoke when refueling, and keepaway from sparks, flames, or other
sources of ignition. 
 
Stop engine before refueling. 
 
Refuel in a well-ventilated area. Refuel
portable fuel tanks off the boat. 
 
Take care not to spill gasoline. If gaso-
line spills, wipe it up immediately with
ZMU01708 

 
General information 
8 
dry rags. 
 
Do not overfill the fuel tank. 
 
Tighten the filler cap securely after re-
fueling. 
 
If you should swallow some gasoline,
inhale a lot of gasoline vapor, or get
gasoline in your eyes, get immediate
medical attention. 
 
If any gasoline spills onto your skin, im-
mediately wash with soap and water.
Change clothing if gasoline spills on it. 
 
Touch the fuel nozzle to the filler open-
ing or funnel to help prevent electro- 
static sparks.
CAUTION:
 
ECM00010...

 
General information 
9
NOTE:
 
Select a propeller which will allow the engine
to reach the middle or upper half of the oper-
ating range at full throttle with the maximum
boat load. If operating conditions such as
light boat loads then allow the engine r/min to
rise above the maximum recommended
range, reduce the throttle setting to maintain 
the engine in the proper operating range.
For instructions on propeller removal and in-
stallation, see page 40. 
EMU25770 
Start-in-gear protection 
Yamaha...

 
10 
Basic components 
EMU25797 
Main components
NOTE:
 
* May not be exactly as shown; also may not be included as standard equipment on all mod- 
els. 
8 
EMU25802 
Fuel tank 
If your model was equipped with a portable
fuel tank, its function is as follows.
WARNING
 
EWM00020  
The fuel tank supplied with this engine is
its dedicated fuel reservoir and must not
be used as a fuel storage container. Com-
mercial users should conform to relevant
licensing or approval authority regula-
1
3
4
5
2
6
16
7 89...

 
Basic components 
11 
tions. 
EMU25830 
Fuel joint 
This joint is used to connect the fuel line. 
EMU25841 
Fuel gauge 
This gauge is located on either the fuel tank
cap or on the fuel joint base. It shows the ap-
proximate amount of fuel remaining in the
tank. 
EMU25850 
Fuel tank cap 
This cap seals the fuel tank. When removed,
the tank can be filled with fuel. To remove the
cap, turn it counterclockwise. 
EMU25860 
Air vent screw 
This screw is on the fuel tank cap. To loosen
the screw, turn it...

 
Basic components 
12 
EMU25961 
Throttle indicator 
The fuel consumption curve on the throttle
indicator shows the relative amount of fuel
consumed for each throttle position. Choose
the setting that offers the best performance
and fuel economy for the desired operation. 
EMU25971 
Throttle friction adjuster 
A friction device provides adjustable resis-
tance to movement of the throttle grip or the
remote control lever, and can be set accord-
ing to operator preference.
To increase resistance, turn the...

 
Basic components 
13 
power, the boat could slow rapidly. This
could cause people and objects in the 
boat to be thrown forward.
NOTE:
 
The engine cannot be started with the lock 
plate removed. 
EMU26001 
Engine stop button 
To open the ignition circuit and stop the en-
gine, push this button. 
EMU26011 
Choke knob for pull type 
To supply the engine with the rich fuel mix-
ture required to start, pull out this knob. 
EMU26070 
Manual starter handle 
To start the engine, first gently pull the han-...

 
Basic components 
14 
To increase resistance, turn the adjuster
clockwise.
To decrease resistance, turn the adjuster
counterclockwise.
WARNING
 
EWM00040  
Do not overtighten the friction adjuster. If
there is too much resistance, it could be
difficult to steer, which could result in an 
accident. 
EMU26261 
Trim rod (tilt pin) 
The position of the trim rod determines the
minimum trim angle of the outboard motor in
relation to the transom. 
EMU26280 
Shallow water lever 
Pushing this lever down will...

 
Basic components 
15
1. Top cowling lock lever(s)
ZMU02862
1