Honda XR250R Owner's Manual page 68

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top of the compression stroke by jiggling the
rocker arms with your fingers, If they are free,
the piston is at the top of-the compression
stroke. If they are tight, rotate the crankshaft
360° and realign the marks.
5. Check the clearance by inserting the feeler
gauge (5) between the adjusting screw (6)
and valve stem.
Standard clearance:
In.0.05mm (0.002 in)
Ex.0.08mm (0.003 in)
Adjust the valves by loosening the lock
nut (7) and turning the adjusting screw
(6) until there is a slight drag on feeler
gauge. After tightening the lock nut (7),
recheck the clearance.
6. Adjust the starter decompressor (see page
59).
7. Install all parts in the reverse order of
disassembly.
62
(5) Feeler gauge
(6) Adjusting screw
(7) Lock nut

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