Triumph Tiger Explorer XR 2017 Service Manual page 114

Tiger Explorer XR Series
Perform the following operations:
Remove the cylinder head, see Cylinder Head - Removal.
Remove the cylinder head valve springs, see Valves and Valve Stem Seals - Removal from the Cylinder
Head.
Note
Do not remove the valve or valve stem seal.
1. Position the valve so that the valve stem end is level with the valve stem seal (the valve must remain in this
position for the duration of the test).
Note
Excessive force must not be used when measuring the valve guide wear. Excessive force will bend
the valve stem and give a false reading.
2. The valve should be gently rocked to one side of the valve guide in line with the camshaft.
Note
A flat ended contact point must be fitted to the dial gauge.
Ensure the dial gauge is level and is in line with the directional movement of the valve being
checked.
3. Secure a dial gauge to the cylinder head such that the clamping device will not damage any of the cylinder
head surfaces.
4. Position the dial gauge to the valve head on the opposite side to where the valve has made contact to the
valve guide, as shown in the illustration below.
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1. Valve stem end
2. Valve stem seal
3
1
1
2
CYLINDER HEAD