Yamaha 8 Cm Owners Manual

 
Trouble Recovery 
46 
Q. Is fuel system obstructed?
A. Check for pinched or kinked fuel line or
other obstructions in fuel system.
Q. Is fuel contaminated or stale?
A. Fill tank with clean, fresh fuel.
Q. Is fuel filter clogged?
A. Clean or replace filter.
Q. Have ignition parts failed?
A. Have serviced by a Yamaha dealer.
Q. Has warning system activated?
A. Find and correct cause of warning.
Q. Is spark plug gap incorrect?
A. Inspect and adjust as specified.
Q. Is ignition wiring damaged or poorly...

 
Trouble Recovery 
47 
A. Have serviced by a Yamaha dealer.
Q. Is load on boat improperly distributed?
A. Distribute load to place boat on an even
plane.
Q. Is water pump or thermostat faulty?
A. Have serviced by a Yamaha dealer.
Q. Is there excess water in fuel filter cup?
A. Drain filter cup. 
Engine power loss. 
Q. Is propeller damaged?
A. Have propeller repaired or replaced.
Q. Is propeller pitch or diameter incorrect?
A. Install correct propeller to operate out-
board at its recommended speed...

 
Trouble Recovery 
48 
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....

 
Trouble Recovery 
49 
could result in an accident. 
 
Attach the engine stop switch lanyard
to a secure place on your clothing, or
your arm or leg while operating the
boat. 
 
Do not attach the lanyard to clothing
that could tear loose. Do not route the
cord where it could become entangled,
preventing it from functioning. 
 
Avoid accidentally pulling the lanyard
during normal operation. Loss of en-
gine power means the loss of most
steering control. Also, without engine
power, the boat could slow...

 
Trouble Recovery 
50 
up.
6. Insert the knotted end of the emergency
starter rope into the notch in the flywheel
rotor and wind the rope several turns
around the flywheel clockwise.
7. Give a strong pull straight out to crank
and start the engine. Repeat if neces-
sary. 
EMU29760 
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.
If you cannot immediately take the outboard
motor to a...

 
Trouble Recovery 
51 
5. Take the outboard motor to a Yamaha
dealer as soon as possible.
CAUTION:
 
ECM00400  
Do not attempt to run the outboard motor 
until it has been completely inspected. 

 
52 
Consumer information 
EMU29811 
Important warranty information for U.S.A. and Canada 

 
Consumer information 
53 

 
Consumer information 
54 
EMU29820 
YAMAHA MOTOR CORPORATION, U.S.A.
 OUTBOARD MOTOR TWO YEAR LIMITED WARRANTY 

 
Consumer information 
55