Front Forks; Rear Suspension - Suzuki GSF650S Service Manual

FRONT FORKS

Inspect every 12 000 km (24 months).
Inspect the front fork for oil leakage, scoring or scratches on the
outer surface of the inner tubes. Replace any defective parts, if
necessary. (!5-15)

REAR SUSPENSION

Inspect every 12 000 km (24 months).
Inspect the rear shock absorbers for oil leakage and check that
there is no play in the swingarm. (!5-38)
PERIODIC MAINTENANCE 2-19