2002 YAMAHA WR 400F remove seats

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Page 232 of 776

YAMAHA WR 400F 2002  Owners Manual 3 - 1
INSP
ADJ
MAINTENANCE INTERVALS
EC300000
REGULAR INSPECTION AND ADJUSTMENTS
MAINTENANCE INTERVALS
The following schedule is intended as a general guide to maintenance and lubrication. Bear in min

Page 416 of 776

YAMAHA WR 400F 2002  Owners Manual 4 - 37
ENGVALVES AND VALVE SPRINGS
5. Measure:
Runout (valve stem)
Out of specification → Replace.
NOTE:
When installing a new valve always replace
the guide.
If the valve is removed or replaced