Lifan M25 - Page 22

4. Check
if the
spark
plug
gasket
is
in
good
conditions,
or
replace
with a
new one.
Screw
on the
spark plug
to the
boffom
first
by hand to prevent
cross
-
threading (Fig.
I
g)
Fig.
18
5.
After the
spark plug
is
seated, tighten
it up
by a spark plug
wrench to
compress
the gasket.
NOTE
If a
new
spark
plug
is
used,
twist
l/2
more hrrns
after
impacting the gasket;
if reinstall
the
original
one,
1ust
twist
l/8-l/4
more turns.
CAUTION
O
The
spark
plug
must be tightened
securely,
or
it may
become
very
hot to
damage the
engine.
a
Only
use
recommended
spark plug
or the
equivalent.
Incorrect
heat
range
of the
spark plug
may damage
the engine.
18
r