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E
L
Turn the engine switch to “
6
” (START)
and check the spark plug for spark
strength.
(See “WARNING”).
9
To prevent FIRE HAZARDS be
sure fuel is not present in the
spark plug area.
9
To prevent FIRE HAZARDS be
sure to place the spark plug as far
away as possible from the spark
plug hole and carburetor area.
9
To prevent ELECTRIC SHOCK do
not hold spark plug lead with hand
while testing.
WARNING
M
OK
N
Does not spark.
O
Check the spark plug.
9
Type: BPR4ES (NGK)
9
Gap: 0.7–0.8 mm (0.028–0.031 in)
P
Incorrect
Q
OK
Replace or
adjust gap.
Clean the spark
plug.
X
Consult a Yamaha dealer.
W
Engine does not start.
V
OK
Clean
or
replace
U
R
Check the following
9
Fuel cock clogging
9
Air filter element clog-
ging.
Clogged
OK
S
T
7CK-28199-Y1_p53-106 3/27/12 4:40 PM Page 93