Chain Maintenance; Checking The Chain For Wear - KTM 990 ADVENTURE Owner's Manual

MAINTENANCE WORK ON CHASSIS AND ENGINE
15 KG
max. 272 mm
1 2 3

Chain maintenance

Maintenance of the X-ring chain is reduced to a minimum. Rinse off any heavy dirt with
plenty of water. Residual used grease must be removed prior to lubrication (Motorex Chain
Clean 611). After drying, use a chain spray specially designed for X-ring chains (Motorex
Chainlube 622).
– No lubrication is allowed to reach the rear tire or the brake disk, eitherwise the road
adherence and the rear wheel braking effects would be strongly reduced and the motor-
cycle could easily get out of control.
– The chain does not have a chain joint for safety reasons. Always have the chain replaced
in an authorized KTM workshop where the service technicans have the required riveting
tool.
– Never mount a normal chain joint.
Also check sprockets and chain guides for wear, and replace if necessary.

Checking the chain for wear

To check the chain for wear proceed as follows:
Switch the transmission to idle and put a load of approx. 15 kilograms (33 lbs) on the lower
part of the chain (see illustration). Now measure the distance between 18 chain rollers on
the upper part of the chain. The chain needs to be replaced when the distance is 272 mm
(10.70 in). Since chains do not always wear evenly, repeat the measurement at different
parts of the chain.
Replace the chain if any X-rings are missing.
NOTE:
16 17 18
If you mount a new chain, the sprockets should also be replaced. New chains wear faster if
used on old used sprockets.
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