KTM 250 SX-F 2005, Repair Manual

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5-14
Repair manual KTM 250 SX-F
Art.-No. 3.206.027-E
Timing train
Thoroughly clean all parts and check for wear.
– Check the toothing of the control idler
1
for breakout and wear.
– Check the timing chain tensioning rail
2
for seizing marks and
damage.
– Check the timing chain guide
3
for seizing marks and damage.
– Check the timing chain clip
4
for seizing marks and damage.
– Check the timing chain
5
for damage and wear; make sure the
chain links operate smoothly.
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.
1
2
3
4
5