Suzuki GSX-R750 Service Manual page 36

0B-6 Maintenance and Lubrication:
7) Turn the crankshaft 360 degrees (one rotation) to
bring the line on the CKP sensor rotor to the rib
behind the clutch cover and also to bring the notches
"E" to the position as shown.
FWD
8) Read the clearance at the rest of the valves "G" and
adjust the clearance if necessary.
"G"
"G"
"G"
Cam
position
Exhaust camshaft
FWD
"F"
"G"
FWD
Adjustment
The clearance is adjusted by replacing the existing
tappet shim with a thicker or thinner shim.
1) Remove the intake or exhaust camshaft. Refer to
"Engine Top Side Disassembly in Section 1D
(Page 1D-25)".
2) Remove the tappet (1) and shim (2) by fingers or
magnetic hand.
1
"E"
I837H1020011-01
FWD
"G"
I837H1020012-01
Notch "E" position
Intake camshaft
FWD
FWD
I837H1020013-01
2
I837H1020048-01
3) Check the figures printed on the shim. These figures
indicate the thickness of the shim, as illustrated.
4) Select a replacement shim that will provide a
clearance within the specified range. For the
purpose of this adjustment, a total of 21 sizes of
tappet shim are available ranging from 1.20 to 2.20
mm in steps of 0.05 mm.
5) Fit the selected shim (2) to the valve stem end, with
numbers toward tappet. Be sure to check shim size
with micrometer to ensure its size.
NOTE
• Be sure to apply engine oil to tappet shim
top and bottom faces.
• When seating the tappet shim, be sure the
figure printed surface faces the tappet.
1.70 mm
I837H1020014-01
2
I718H1020002-02