Valve Control Shaft Bracket; Exhaust Valve Bearings; Left-Hand, Central And Right-Hand Exhaust Valves; Short And Long Exhaust Valve Shaft - GAS GAS Enduro Series Workshop Manual

Workshop manual
SeRVICING aND RePaIRING THe eNGINe'S COmPONeNTS

Valve control shaft bracket

- Check that the centrifugal lever shaft moves freely inside the bracket.

Exhaust valve bearings

- Check that the exhaust valve bearings show no signs of jamming or hardness
when rotating.
Note:
Alloftheexhaustvalvebearingsmustbereplaced

Left-hand, central and right-hand exhaust valves

- Check the valves for cracks, jamming marks or deformation due to overheating.
- Clean the valves to remove any carbon deposits with a wire brush that does
not damage their surface.

Short and long exhaust valve shaft

- Check that the shafts show no signs of jamming marks or deformation due to
overheating.
- Clean the shafts to remove any carbon deposits with a wire brush that does not
damage their surface.
Central exhaust valve fitting position
- Fit the central exhaust valve with the curved surface facing the inside of the
exhaust port.
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