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TABLE OF CONTENTS
Specifications/Charts/Patterns/Diagrams.............. 2-19
General Specifications............................................ 2
Engine Specifications ............................................. 2
Torque Specifications.............................................. 2
Engine Torque Patterns........................................... 4
Torque Conversions (ft-lb/N-m)............................... 4
Tightening Torque (General Bolts) .......................... 4
Electrical Specifications .......................................... 5
Component Voltage/Resistance Chart - Water
Temperature......................................................... 5
Crankshaft Runout/Repair Specifications ............... 6
Drive System Specifications ................................... 6
Drive Clutch/Driven Clutch Optional Components.. 7
Drive Clutch Cam Arms (w/Set Screw)................... 7
Chain Case Performance Calibrations.................... 8
Chains and Sprockets............................................. 9
Carburetor Specifications........................................ 9
Arctic Power Valve (APV) System Specifications.... 9
Mikuni Tuning Components................................... 10
Major Tuning Components .................................... 10
Jet Needle Taper Angles....................................... 10
Rear Spring Selection Chart................................. 11
Installed Spring Rate Chart .................................. 11
Front Suspension Sway Bar.................................. 11
Rebuildable Shock Tools Required ....................... 11
Valve Stacks/Specifications .................................. 12
Rebuildable Shock Accessory Part Numbers ....... 14
Fraction/Decimal Conversion Chart ...................... 15
Drill Bit Sizes (Number) Chart............................... 15
MM/IN. Conversion Chart ..................................... 16
Wiring Diagram - Hood Harness (p/n 1686-664) .. 17
Wiring Diagram - Ignition/Main Harness (p/n 1686-
732) ................................................................... 19
Setup Instructions ............................................... 21-28
Removing Snowmobile From Crate/Handlebar
Assembly ........................................................... 21
Installing Windshield ............................................ 21
Installing Spindle/A-Arm ....................................... 21
Installing Front Shock Absorbers .......................... 21
Installing Skis........................................................ 21
Installing Sway Bar (Optional)............................... 22
Brake System........................................................ 22
Drive Belt .............................................................. 22
Ski Alignment........................................................ 23
Recommended Gasoline/Oil/Mixing Ratio ............ 24
Preoperation Checks ............................................ 25
Checking Headlight Aim........................................ 25
Track Tension/Track Alignment.............................. 25
Handlebar/Ski Alignment ...................................... 26
Test Ride ............................................................... 28
General Information ............................................ 29-33
Control Locations.................................................. 29
Engine Break-In .................................................... 29
Diagnostic Codes/Check Engine Light.................. 29
Ignition Timing Adjustment Dial ............................ 29
Testing Ignition Timing Rotary Select Switch ........ 29
Arctic Power Valve (APV) System ......................... 30
Exhaust Controlled Timing (ECT) System ............ 30
Testing Exhaust Temperature Sensor ................... 31
ACT Hot Start System........................................... 31
Handlebar Tilt........................................................ 31
Rear Bumper......................................................... 32
Exhaust System .................................................... 32
Air-Intake Silencer................................................. 32
Liquid Cooling System .......................................... 32
Drive Clutch And Driven Clutch............................. 32
Drive Clutch/Driven Clutch Alignment................... 33
Drive Chain Tension .............................................. 33
Fuel Pump............................................................. 33
Shock Absorbers................................................... 33
Track Studs ........................................................... 33
Towing ................................................................... 33
Operating Instructions ......................................... 34-36
Starting And Stopping Engine............................... 34
Braking.................................................................. 35
Emergency Stopping............................................. 36
Lubrication................................................................ 37
Chain Case ........................................................... 37
Rear Suspension .................................................. 37
Maintenance...................................................... 38-106
Periodic Maintenance Checklist ............................ 38
Pre-Race/Practice Checklist ................................. 39
Engine................................................................... 39
Fuel System .......................................................... 62
Servicing Carburetors ........................................... 62
Adjusting Carburetors ........................................... 67
Selecting Carburetor Main Jets............................. 68
Reed Valves .......................................................... 68
Spark Plugs........................................................... 70
Track Drive ............................................................ 70
Drive Sprockets..................................................... 72
Brake System........................................................ 73
Checking Brake Lever Travel................................. 74
Bleeding Brake System......................................... 74
Checking/Changing Brake Pads ........................... 74
Drive Belt............................................................... 75
Drive Clutch........................................................... 76
Driven Clutch......................................................... 77
Ski Shock Absorber Springs ................................. 79
Servicing Float X Evol Shock Absorbers............... 79
Rear Suspension .................................................. 96
Servicing Zero-X Shock Absorbers....................... 97
Adjusting Rear Transfer Adjuster Cams .............. 104
Lights .................................................................. 104
Ski Wear Bar ....................................................... 105
Rail Wear Strip .................................................... 106
Performance Tips ................................................... 107
Preparation For Storage......................................... 108
Preparation After Storage....................................... 109
Genuine Arctic Cat Products.................................. 110
Special Tools ................................................... 111-120
Declaration of Conformity................ Inside Back Cover