KTM 990 Adventure Repair Manual page 128

6-15
3
Chain tensioner cylinder rear
– Insert the chain tensioner element
NOTE: the housing and tensioning piston of the chain tensioner are
compression molded. If the two parts cannot be separated, the chain
tensioner must be replaced.
1
– Apply the chain tensioner bolt and new sealing washer to the chain
tensioner element without compressing the spring.
– Measure the distance
cylinder head.
The measured value has to be between 6 mm and 11 mm. If the value
2
is lower, the tensioning rail could be worn or the timing chain
excessively elongated. If it is higher, the engine was turned to TDC
against the running direction.
– Mount the chain tensioner bolt
tighten to 20 Nm.
in the cylinder head bore.
1
between the sealing washer and the
2
with a new sealing washer and
3