Arctic Cat 650 Twin2004, Service Manual

Page: 42 / 210

3-13
3
18. Using a piston pin puller (A), remove the piston
pins (B); then remove the pistons from the
connecting rods.
ATV2068
Center Crankcase
Components

NOTE: This procedure cannot be done with the
engine/transmission in the frame . Complete
Removing procedures for Left-Side, Right-Side,
and Top-Side must precede this procedure.

NOTE: For efficiency, it is preferable to remove
and disassemble only those components which
need to be addressed and to service only those
components. The technician should use discretion
and sound judgment.
Separating Crankcase
Halves
1. Remove the right crankcase bolts (A = 6 mm) (B =
8 mm).
KX258
2. Remove the shift shaft positioning bolt (A)
accounting for a washer, spring, and ball; then
remove the left crankcase bolts (B = 6 mm) (C = 8
mm).
KX259
3. Wrap tape on the sprockets (A) to protect the
crankshaft bushing in the case; then using pry
points (B), separate the crankcase and lift off the
left side.
KX260

NOTE: The right and left crankcase halves are
machined as an assembled set; therefore, they
must be replaced as a set.