3-2
Engine/Transmission
This section has been organized into sub-sections
which show a progression for the complete servicing
of the Arctic Cat Y-6 engine/transmission.
NOTE: Arctic Cat recommends the use of new
gaskets, lock nuts, and seals and lubricating all
internal components when servicing the engine/
transmission.
NOTE: Some photographs and illustrations used
in this section are used for clarity purposes only
and are not designed to depict actual conditions.
NOTE: Critical torque specifications are located
in Section 10.
Specifications*
*Specifications subject to change without notice.
Piston Ring End Gap (Installed)
(top)
(2nd)
(oil)
0.15-0.30 mm
(0.006-0.012 in.)
0.30-0.45 mm
(0.012-0.018 in.)
0.2-0.7 mm
(0.008-0.028 in.)
Piston Pin Outside Diameter (Min)
12.96 mm (0.51 in.)
Piston Pin Bore (Max)
13.03 mm (0.513 in.)
Piston Skirt/Cylinder Clearance (Max)
0.10 mm (0.0039 in.)
Cylinder Head Distortion (Max)
0.05 mm (0.002 in.)
Cylinder Bore Trueness
50.00-50.05 mm
(1.968-1.970 in.)
Connecting Rod
(Small End Inside Diameter) (Max)
13.06 mm (0.514 in.)
Connecting Rod (Small End Deflection)
(Max)
0.24 mm (0.0094 in.)
Connecting Rod (Big End Side to Side)
(Max)
0.05 mm (0.002 in.)
Crankshaft (Run-Out) (Max)
0.10 mm (0.004 in.)
Camshaft Lobe (Intake) (Min)
25.65 mm (1.01 in.)
Camshaft Lobe (Exhaust) (Min)
25.45 mm (1.001 in.)
Rocker Arm to Shaft Clearance (Max)
0.10 mm (0.004 in.)
Valve Spring Free Length (Intake) (Min)
28.4 mm (1.12 in.)
Valve Spring Free Length (Exhaust) (Min) 31.5 mm (1.24 in.)
Intake Valve Stem to Guide Clearance
(Max)
0.06 mm (0.002 in.)
Exhaust Valve Stem to Guide Clearance
(Max)
0.08 mm (0.003 in.)
Oil Pump Outer Rotor to Body Clearance
Max)
0.25 mm (0.010 in.)
Oil Pump Outer to Inner Rotor Clearance
(Max)
0.20 mm (0.008 in.)
Oil Pump Rotor End Clearance (Max)
0.12 mm (0.005 in.)
V-Belt Width (Min)
17.0 mm (0.67 in.)
Centrifugal Clutch Housing (Max)
107.5 mm (4.23 in.)
Centrifugal Clutch Lining Thickness (Min) 1.0 mm (0.039 in.)
Driven Pulley Spring Free Length (Min)
90.0 mm (3.54 in.)
Roller Guide Diameter (Min)
15.4 mm (0.606 in.)
Movable Drive Face Collar (Max)
19.94 mm (0.785 in.)
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FOR ARCTIC CAT ATV DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983
www.mymowerparts.com
