Section 03
ENGINE
Subsection 08
(CYLINDER AND HEAD)
03-08-6
VMR2004_012_03-08A.FM
Installation
CAUTION:
Install the timing gears so that the
markings on the gears must be aligned and so
that the dowel pin on each camshaft must be lo-
cated on the top, as shown in the next illustration.
1. Align marks
Tighten screws
no. 12
for chain guide with Loctite
243, hand tight.
Fit upper section of camshaft carrier and tighten
down.
Check valve clearance. Refer to MAINTENANCE/
LUBRICATION.
Install chain tensioner
no. 4
and tighten screw
no. 13
with sealing ring
no. 14
.
Install cylinder head cover with gasket.
Unscrew and remove crankshaft locking bolt. Install
the screw plug with sealing ring. Torque to 24 N•m
(18 lbf•ft).
CENTRIFUGAL DECOMPRESSOR
Inspection
Hold down exhaust camshaft
no. 7
in horizontal
position with cam tips facing downwards.
The spring
no. 15
must press the lever upwards
to dimension “
A
”, replace spring if necessary.
A. 11.5 mm (.45 in)
NOTE:
Never stretch spring since this alters the
defined spring force.
When activated, the amount of lifting arm protrud-
ing over the cam pitch circle must not be less than
dimension “
B
”.
B. 0.4 mm (.0157 in)
Disassembly
Remove the exhaust camshaft
no. 7
.
Press shaft
no. 16
out of centrifugal weight
no. 17
.
Assembly
Reassemble in the reverse order of disassembly.
Paying attention to the following detail.
If the centrifugal decompressor was dismounted,
ALWAYS
replace the spring.
After assembly, check if the centrifugal weight
moves smoothly.
V02C0IA
1
V02C0JA
A
V02C0KA
B
Summary of Contents for DS 650
Page 1: ......
Page 2: ...Shop Manual 2004 DS 650TM DS 650TM BAJA DS 650TM BAJA X ...
