Maintenance
49
spark plug because heat and deposits will
cause the spark plug to slowly break down
and erode. If electrode erosion becomes ex-
cessive, or if carbon and other deposits are
excessive, you should replace the spark plug
with another of the correct 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 gasket
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 finger-
tight. Have the spark plug adjusted to the cor-
rect torque as soon as possible with a torque-
wrench.
EMU28960
Checking fuel system
WARNING
EWM00900
Gasoline and its vapors are highly flam-
mable and explosive. Keep away from
sparks, cigarettes, flames, or other sourc-
es of ignition.
WARNING
EWM00910
Leaking fuel can result in fire or explosion.
●
Check for fuel leakage regularly.
●
If any fuel leakage is found, the fuel sys-
tem must be repaired by a qualified me-
chanic. Improper repairs can make the
outboard unsafe to operate.
Check the fuel lines for leaks, crack, or mal-
function. If a problem is found, your Yamaha
dealer or other qualified mechanic should re-
pair it immediately.
Standard spark plug:
LFR5A-11
1. Spark plug gap
2. Spark plug I.D. mark (NGK)
Spark plug gap:
1.0–1.1 mm (0.039–0.043 in)
Spark plug torque:
25.0 Nm (18.4 ft-lb) (2.55 kgf-m)
63P10.book Page 49 Tuesday, May 13, 2003 10:23 AM
Содержание F150C
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Страница 2: ...ZMU01690 Read this owner s manual carefully before operating your outboard motor ...
Страница 73: ...Consumer information 67 EMU29810 Important warranty information for U S A and Canada ...
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Страница 77: ...Consumer information 71 EMU29840 IMPORTANT WARRANTY INFORMATION IF YOU USE YOUR YAMAHA OUTSIDE U S A OR CANADA ...
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Страница 80: ...PLACE POSTAGE HERE ATTN WARRANTY DEPARTMENT ...