Arctic Cat 2015 ZR 5000 Service Manual page 91

6. Apply engine oil onto the piston pin. Make sure the
"Y" mark (A) on the connecting rod faces to the
MAG side when the punch mark (B) on the piston is
pointing up.
7. Install the piston pin clips so the clip ends are 3 mm
(0.12 in) (C) or more from the cutout in the piston.
Make sure the oil ring end gaps are on directly oppo-
site sides of the piston and the compression ring end
gaps are 90° from one another.
SNO-384A
8. With the piston rings installed, lubricate each piston
and cylinder with engine oil; then with the punch
marks on the top of the pistons directed towards the
exhaust side of the engine, install the piston assem-
blies into the cylinder using Ring Compressor and a
soft hammer.
SNO-383A
9. Rotate the engine to the upside down position for
installing the crankshaft.
10. With the proper bearings selected, install the half-
bearings into the upper engine case; then lubricate
the bearing faces liberally with engine-assembling
grease taking care not to get any grease between the
engine case and bearing.
 NOTE: Make sure the tabs of the bearings are prop-
erly seated to the notches in the upper engine case.
SNO-295A
11. Lubricate the lips of the crankshaft seal with grease
and install the crankshaft seal over the PTO end of
the crankshaft with the spring side of the seal
directed toward the crankshaft; then install the crank-
shaft.
SNO-296
SNO-297
SNO-298
89