Arctic Cat DVX 250 2007, Руководство по обслуживанию

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3-44
3. Lubricate the inside wall of the cylinder; then
using a ring compressor or the fingers, compress
the rings and slide the cylinder over the piston.
Route the cam chain up through the cylinder cam
chain housing; then remove the piston holder and
seat the cylinder firmly on the crankcase.
4. Turn the cam chain tensioner screw clockwise to
retract the tensioner spring.
KM705
C. Cylinder Head
D. Valve Cover
„
NOTE: Steps 1-4 in the preceding sub-section
must precede this procedure.
5. While keeping tension on the cam chain, place
the front cam chain guide into the cylinder.
6. Place the head gasket into position on the cylin-
der. Place the alignment pins into position; then
place the head assembly into position on the cyl-
inder making sure the cam chain is routed
through the chain cavity.
KM718A
7. Turn the crankshaft as required to align the “T”
mark on the rotor/flywheel with the index mark
on the right-side crankcase cover.
KM779A
8. With the index hole in the camshaft gear
directed away from the cylinder head and the
two punch marks aligned with the cylinder head
surface, install the timing gear into the cam
chain and seat the crankshaft into the camshaft
journals.
KM715A
9. Install the two alignment pins; then install the
camshaft holder and secure with the four cylin-
der head nuts and washer. Using a crisscross
pattern, tighten to specifications.
! CAUTION
The cylinder should slide on easily. Do not force the
cylinder or damage to the piston, rings, cylinder, or
crankshaft assembly may occur.
! CAUTION
Care should be taken that the bottom of the chain
guide is secured in the crankcase boss.
! CAUTION
Keep tension on the cam chain to avoid damaging
the crankcase boss.
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