Tracker Off-Road 800SX Service Manual page 72

ADJUSTING VALVE CLEARANCE
Shims
Part Number
3040-157
3040-158
3040-159
3040-160
3040-161
3040-162
3040-163
3040-164
3040-165
3040-166
3040-167
3040-168
3040-169
3040-170
3040-171
3040-172
3040-173
3040-174
3040-175
3040-176
3040-177
3040-178
3040-179
3040-180
3040-181
3040-182
3040-183
3040-184
3040-185
3040-186
3040-187
3040-188
3040-189
3040-190
3040-191
3040-192
3040-193
3040-194
When servicing the valve assembly, inspect valve seats,
valve stems, valve faces, and valve stem ends for pits,
burn marks, or other signs of abnormal wear.
NOTE: All valves can be adjusted using the follow-

ing procedure with the exception of the intake and
exhaust valves nearest the drive gears (see ALTER-
NATE VALVE CLEARANCE ADJUSTMENT in this
section).
1. To adjust valve clearance, rotate the engine in the
direction of rotation until the camshaft lobe (A) high
point is directly opposite the valve bucket (B) of the
valve to be checked; then with a small pick or screw-
driver, rotate the bucket until notch (C) is accessible.
70
Thickness
2.06 mm
2.08 mm
2.10 mm
2.12 mm
2.14 mm
2.16 mm
2.18 mm
2.20 mm
2.22 mm
MF078B
2.24 mm
2.26 mm
2.28 mm
2.30 mm
2.32 mm
2.34 mm
2.36 mm
2.38 mm
2.40 mm
2.42 mm
2.44 mm
2.46 mm
2.48 mm
2.50 mm
2. Turn the crankshaft in direction of rotation until high
2.52 mm
2.54 mm
2.56 mm
2.58 mm
2.60 mm
2.62 mm
2.64 mm
2.66 mm
2.68 mm
2.70 mm
2.72 mm
2.74 mm
2.76 mm
2.78 mm
2.80 mm
MF077A
MF074A
Available Valve Clearance Adjustment Shims
point (A) of the camshaft lobe of the valve to be
adjusted points directly down toward the valve
bucket (B), fully opening the valve; then insert the
Valve Adjust Tool, in position between the camshaft
and the valve bucket.