Maintenance and Lubrication: 0B-6
NOTE
• The cam must be at positions, “A” or “B”,
when checking or adjusting the valve
clearance. Clearance readings should not
be taken with the cam in any other position
than these two positions.
• The valve clearance should be taken when
each cylinder is at Top Dead Center (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.
8) Remove the right crankshaft cover (1).
9) Turn the crankshaft clockwise and align the match
mark “C” on the crankshaft with the mating surfaces
“D” of the crankcases. Also, position the notches “E”
on the right end of each camshaft as shown. Then,
measure the following valve clearances “F”.
• Cylinder #1: Intake and exhaust valve clearances
• Cylinder #2: Exhaust valve clearance
• Cylinder #3: Intake valve clearance
10) Insert the thickness gauge between the tappet and
the cam. If the clearance is out of specification,
adjust it to the specified range.
Special tool
(A): 09900–20803 (Thickness gauge)
“A”
“B”
“B”
I718H1020001-03
1
I718H1140011-01
Camshaft position
Notch “E” position
faces outside
Measuring position “F”
“C”
“D”
I718H1020014-01
“E”
“E”
I718H1020015-02
“F” “F”
“F”
“F”
I718H1020016-01
(A)
I718H1020017-01
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