5-10
Power Unit
4st 2/2.5/3.5 2007
1.
Disconnect plug cap
1
connection, and then, remove
spark plug and cylinder head cover
2
.
2
1
3
T
a
b
2) Inspection of Valve Clearance
4
c
When removing or installing cylinder head cover
without removing power unit, use 10 mm box
wrench with large offset angle.
d
e
· Set piston to top dead center of compression
stroke.
· Remove oil filler cap and check that ø5 mm (0.2
in) hole
c
of cam shaft gear
4
can be seen.
2.
Pull recoil starter
3
to turn flywheel clockwise until
flywheel "T" mark
a
is brought to flywheel cover "
▲
" mark
b
.
3.
Check clearances of intake valve
d
and exhaust valve
e
.
Adjust gap if it is out of specified range.
Valve Clearance (when engine is cold) :
(IN) Intake Side
d
: 0.06 - 0.14 mm (0.0024 - 0.0055 in)
(EX) Exhaust Side
e
: 0.11 - 0.19mm (0.0043 - 0.0075 in)
Perform inspection and adjustment of valve
clearances when engine is cold.
MFS2̲sec05̲070524.qxd 07.5.24 3:18 PM ページ 10