Suzuki VLR1800, Service Manual

Page: 32 / 624

0B-5 Maintenance and Lubrication:
Valve Clearance Inspection and Adjustment
B822H10206006
Inspect valve clearance
Every 24 000 km (14 500 miles, 48 months) thereafter
Inspection
Valve clearance adjustment must be checked and
adjusted, a) at the time of periodic inspection, b) when
the valve mechanism is serviced, and c) when the
camshafts are removed for servicing.
1) Remove the frame side covers. Refer to “Exterior
Parts Removal and Installation in Section 9D
(Page 9D-3)”.
2) Remove the fuel tank. Refer to “Fuel Tank Removal
and Installation in Section 1G (Page 1G-8)”.
3) Remove the frame head covers. Refer to “Exterior
Parts Removal and Installation in Section 9D
(Page 9D-3)”.
4) Remove the air cleaner chamber. Refer to “Air
Cleaner Chamber Removal and Installation in
Section 1D (Page 1D-6)”.
5) Remove the spark plugs. Refer to “Spark Plug
Removal and Installation in Section 1H (Page 1H-
6)”.
6) Remove the cylinder head covers and brackets.
7) Remove the PAIR reed valves. Refer to “PAIR Reed
Valve Removal and Installation in Section 1B
(Page 1B-10)”.
8) Remove the cylinder head covers (1) and (2).
#1 Cylinder
#2 Cylinder
NOTE
The valve clearance specification is different
for both intake and exhaust valves.
Valve clearance (When cold)
IN.: 0.09 – 0.16 mm (0.004 – 0.006 in)
EX.: 0.20 – 0.30 mm (0.008 – 0.012 in)
NOTE
• The tappet clearance should be taken
when each cylinder is at Top Dead Center
(TDC) of compression stroke.
• The cams (IN. & EX.) on the front cylinder
at position “A” show the front cylinder at
TDC of compression stroke.
• The cams (IN. & EX.) on the front cylinder
at position “B” show the rear cylinder at
TDC of compression stroke.
• The clearance specification is for COLD
state.
• To turn the crankshaft for clearance
checking, be sure to use a wrench, and
rotate in the normal running direction. All
spark plugs should be removed.
I822H1020009-01
I822H1020011-01
1
I822H1020012-02
2
I822H1020013-02