Suzuki DF350A Owner's Manual page 88

NOTICE
When servicing the iridium/platinum
spark plugs, do not touch the center elec-
trode, as it is easy to damage.
Do not touch the center electrode of an
iridium spark plug. Avoid cleaning it or
adjusting its electrode gap.
NOTICE
Use of improper spark plugs or improp-
erly tightening spark plugs can cause
severe engine damage.
• Do not experiment with other spark
plug brands unless you can determine
that they are directly equivalent to the
specified brand, or you may experience
engine damage which will not be cov-
ered under warranty. Note that after-
market cross-reference charts may not
be accurate.
• To install a spark plug; seat it as far as
possible by hand, then use a wrench to
tighten it to either the recommended
torque setting or the specified rotation
angle.
Tightening torque
15 – 19 N·m
(1.5 – 1.9 kg-m, 11.0 – 14.0 lb-ft)
Rotation angle
New plug
Re-use plug
• Do not overtighten or cross-thread a
spark plug, as this will damage the alu-
minum threads of the cylinder head.
86
1/2 – 3/4 of a turn
1/12 – 1/8 or a turn
NOTICE
If the oil dipstick knob is not correctly
positioned when installing the motor
cover, the oil level gauge would be dam-
aged.
When the motor cover is to be attached,
make sure that the oil dipstick knob is
positioned as shown in the figure.