Timing Chain Cylinder Front; Cylinder Head Front With Cylinder - KTM 990 Adventure Repair Manual

4-7
1
3
A
5
2
4
6
7

Timing chain cylinder front

NOTE: Valid up to and including model year 2006
– Loosen the bearing bolt
1
the cylinder head together with the needle bearing. The double
timing gear will slide down slightly, relieving the timing chain.
NOTE: Valid as of model year 2007
– Remove the screw of the bearing bolt
bearing bolt 4 with a screwdriver. The timing gear slips down easily
and the timing chain loosens.
– Remove the O-ring on the bearing bolt.
– Use a wire hook which you can bend from a piece of welding wire
A
to lift the side of the chain
teeth over the gear teeth
4
double timing gear towards the outside by inserting your finger
through the hole for the bearing bolt.
– Lift the double timing gear out of the cylinder head, letting the
chain fall into the slot.

Cylinder head front with cylinder

– Remove the outer nut .
6
– Loosen the cylinder-head
600.29.083.000 is required for the inside nuts
– Pull the cylinder head and cylinder up until the piston-pin retainer
can be lifted out of the groove on the clutch side with a suitable
screwdriver.
NOTE: the piston-pin retainer can easily be removed if the piston is
held in place by the cylinder.
– Press the piston pins out of the piston by hand and remove the
cylinder together with the piston.
– Discard the cylinder-base gasket.
on the double timing gear and pull out of
and carefully press out the
2
towards the inside from the chain
3
of the double timing gear. Hold the
5
nuts crosswise. Special
.
7
nut