Valve Clearance - Honda XR250R Owner's Manual

VALVE CLEARANCE

Excessive valve clearance will cause noise.
Little or no clearance will prevent the valve
from closing and cause valve damage and
power loss. Check valve clearance at the
specified intervals.
NOTE:
Checking or adjusting valve clearance
should be performed while the engine is
cold. The clearance may to increase as the
engine temperature rises.
(1) Crankshaft hole cap
(2) Timing mark hole cap
1. Turn the fuel valve OFF and remove the
seat and fuel tank.
2. Remove the crankshaft hole cap (1) and
timing mark hole cap (2).
3. Remove the valve adjuster covers.
4. Rotate the crankshaft counter clockwise
and align the T mark (3) with the index
mark (4). Make sure the piston is at the
(3) "T" mark
(4) Index mark
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