Timing Train - KTM 450 SX-F Repair Manual

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Timing train

– Check O-rings for damage and replace if necessary.
– Inspect the parts for damage or wear.
– Replace any damaged or worn parts.
– Also check the timing chain for smooth operation of the chain links.
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NOTE: The smooth operation of the chain links can easily be checked by simply letting the timing chain hang down - the chain
links should align in a row. Replace the timing chain if the chain links do not align in a row - they are no longer free-moving.