Yamaha WR250FM Base valve, Fork spring free length 460 mm 18.1 in Limit 455 mm 17.9

FRONT FORK CHAS

EC554200

Base valve

1.Inspect:

•Valve assembly 1 Wear/damage → Replace.

•O-ring 2

Damage → Replace.

EC554400

Fork spring

1.Measure:

•Fork spring free length a

Out of specification → Replace.

Fork spring free length: 460 mm (18.1 in) <Limit>: 455 mm (17.9 in)

EC554502

Inner tube

1.Inspect:

•Inner tube surface a

Score marks → Repair or replace.

Use #1,000 grit wet sandpaper. Damaged oil lock piece → Replace.

•Inner tube bends

Out of specification → Replace. Use the dial gauge 1.

Inner tube bending limit: 0.2 mm (0.008 in)

NOTE:

The bending value is shown by one half of the dial gauge reading.

WARNING

Do not attempt to straighten a bent inner tube as this may dangerously weaken the tube.

EC554600

Outer tube

1.Inspect:

•Outer tube 1

Score marks/wear/damage → Replace.

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