Maintenance
60
EMU28951
Cleaning and adjusting spark plug
WARNING
EWM00560
When removing or installing a spark plug,
be careful not to damage the insulator. A
damaged insulator could allow external
sparks, which could lead to explosion or
fire.
The spark plug is an important engine com-
ponent and is easy to inspect. The condition
of the spark plug can indicate something
about the condition of the engine. For exam-
ple, if the center electrode porcelain is very
white, this could indicate an intake air leak or
carburetion problem in that cylinder. Do not
attempt to diagnose any problems yourself.
Instead, take the outboard motor to a
Yamaha dealer. You should periodically re-
move and inspect the spark plug because
heat and deposits will cause the spark plug
to slowly break down and erode. If electrode
erosion becomes excessive, or if carbon and
other deposits are excessive, you should re-
place the spark plug with another of the cor-
rect type.
Before fitting the spark plug, measure the
electrode gap with a wire thickness gauge;
adjust the gap to specification if necessary.
When fitting the plug, always clean the gas-
ket surface and use a new gasket. Wipe off
any dirt from the threads and screw in the
spark plug to the correct torque.
NOTE:
If a torque-wrench is not available when you
are fitting a spark plug, a good estimate of
the correct torque is 1/4 to 1/2 a turn past fin-
ger-tight. Have the spark plug adjusted to the
correct torque as soon as possible with a
torque-wrench.
EMU28962
Checking fuel system
WARNING
EWM00060
Gasoline and its vapors are highly flam-
mable and explosive. Keep away from
sparks, cigarettes, flames, or other
Standard spark plug:
DPR6EA-9
1. Spark plug gap
2. Spark plug I.D. mark (NGK)
Spark plug gap:
0.8–0.9 mm (0.031–0.035 in)
Spark plug torque:
18.0 Nm (13.3 ft-lb) (1.84 kgf-m)
Содержание F15D
Страница 1: ...F9 92D T9 92D F15D OWNER S MANUAL 66M 28199 1A U S A Edition LIT 18626 06 13 ...
Страница 2: ...EMU25060 ZMU01690 Read this owner s manual carefully before operating your outboard motor ...
Страница 63: ...Maintenance 58 EMU28931 Greasing Yamaha marine grease Water resistant grease F9 9ER T9 9ER F15PR ZMU02330 ...
Страница 64: ...Maintenance 59 F9 9MH T9 9EH F15MH F15EH F15PH ZMU02331 ...
Страница 85: ...80 Consumer information EMU29811 Important warranty information for U S A and Canada ...
Страница 86: ...Consumer information 81 ...
Страница 88: ...Consumer information 83 ...
Страница 89: ...Consumer information 84 EMU29840 IMPORTANT WARRANTY INFORMATION IF YOU USE YOUR YAMAHA OUTSIDE U S A OR CANADA ...
Страница 90: ...Printed in Japan July 2004 0 4 1 Printed on raecycled paper ...
Страница 92: ...PLACE POSTAGE HERE ATTN WARRANTY DEPARTMENT Warranty card 2 27 02 11 47 AM Page 2 ...