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2
CYLINDER HEAD BOLTS
Cylinder head seal has a "TOP" mark. Oil cylinder
head screws with UTOM oil and tighten to 150 Nm
following sequence given in Figure 12. Repeat
tightening at same torque. Now tighten the bolts in
the same sequence over 2 x 120° in 2 steps.
VALVE CLEARANCE
Adjust the clearance between the rockers and the
valves using wrench 1 and feeler gauge 2. Running
clearance is intake 0.30 mm and exhaust 0.40 mm.
Bring the cylinder to be adjusted at expansion stroke.
The cylinder valves will be closed while the rockers
of the symmetrical cylinders are balancing. Sym-
metrical cylinders are 1--6, 2--5 and 3--4.
NOTE: When reassembling the engine, to adjust the
clearance between the rockers and the valves faster,
proceed as follows:
1. Rotate the crankshaft.
2. Balance cylinder N
valves marked with an asterisk, following the se-
quence indicated in the scheme.
Cylinder N° 1
Intake
--
Exhaust
--
3. Balance valves of cylinder N
valves marked with an asterisk, following the se-
quence indicated in the scheme.
Cylinder N° 1
Intake
*
Exhaust
*
SECTION 10 - - ENGINE - - CHAPTER 1
1 valves and adjust the
°
2
3
4
5
--
*
--
*
*
--
*
--
6 and adjust the
°
2
3
4
5
*
--
*
--
--
*
--
*
52023
30365
6
*
*
6
--
--
1
2
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