Suzuki AN650 2002, Service Manual

Page: 27 / 463

PERIODIC MAINTENANCE 2-9
• In this condition, read the tappet clearance at the valves (In
and Ex of No.2).
• If the clearance is out of specification, adjust the clearance as
shown below.
[
09900-20803: Thickness gauge
• Turn the crankshaft 360 degrees (one rotation) to bring the
“TOP” line on the starter clutch to the index mark of valve tim-
ing inspection hole and also to bring notches
A
to the position
as shown.
• Read the clearance at the remaining valves (In and Ex of
No.1) and adjust the clearance if necessary as shown below.
TAPPET CLEARANCE ADJUSTMENT
The clearance is adjusted by replacing the existing tappet shim
by a thicker or thinner shim.
• Remove the intake or exhaust camshafts. ( 3-12)
• Remove the tappet
1
and shim
2
by fingers or magnetic
hand.
• Check the figures printed on the shim. These figures indicate
the thickness of the shim, as illustrated.
• Select a replacement shim that will provide a clearance within
the specified range. For the purpose of this adjustment, a total
of 25 sizes of tappet shim are available ranging from 1.20 to
2.20 mm in steps of 0.05 mm. Fit the selected shim to the
valve stem end, with numbers toward tappet. Be sure to
check shim size with micrometer to ensure its size.
Refer to the tappet shim selection table (Pages 2-11 and
2-12) for details.