3-4
CHK
ADJ
ENGINE
ADJUSTING THE VALVE CLEARANCE
The following procedure applies to all of the
valves.
TIP
o Valve clearance adjustment should be made on a cold engine, at room temperature.
●
Valve clearance adjustment should be made
on a cold engine, at room temperature.
●
When the valve clearance is to be mea-
sured or adjusted, the piston must be at top
dead center (TDC) on the compression
stroke.
1. Remove:
• Fuel tank right side and left side panels
Refer to “
FUEL TANK
” on page
6
-
1 of
base service manual B97-F8197-E0.
2. Disconnect:
• Cylinder head breather hose “1”
• Canister hose from fuel tank “2”
• Spark plug cap “3”
3. Remove:
• Oil cooler
Refer to “OIL COOLER” on page 5-48 of
base service manual B97-F8197-E0.
• Cylinder head valve covers along with “O”
rings
Refer to “CYLINDER HEAD” on page 5-6
of base service manual B97-F8197-E0.
4. Remove:
• Timing mark accessing screw “1”
• Crankshaft end accessing screw “2”
5. Measure:
• Valve clearance
Out of specification
Adjust.
a.Turn the crankshaft counterclockwise.
b.Align the “I” mark “a” on the AC Magneto
rotor with the stationary pointer “b” on the
AC Magneto cover.
c. Check that the cam lobes are positioned
as shown in the illustration.
TIP
At this position, both the valves must have
some valve clearance.
d.Measure the valve clearance with a feeler
gauge “1”.
Out of specification
Adjust.
Center plug spanner
YSST-625
Valve clearance (cold)
Intake
0.05-0.10 mm
Exhaust
0.08-0.13 mm
Feeler gauge
YSST-1215 (90890-03180)
B9X-F8197-E0.book Page 4 Thursday, July 16, 2020 2:28 PM
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Страница 238: ...TRBL SHTG B9X F8197 E0 book Page 2 Thursday July 16 2020 2 28 PM ...
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