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Arctic Cat 2012 350 - User Manual

Arctic Cat 2012 350
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FOREWORD
This Arctic Cat Service Manual contains service, maintenance, and troubleshooting information for the 2012 Arc-
tic Cat 350 ATV model. The complete manual is designed to aid service personnel in service-oriented applications.
This manual is divided into sections. Each section covers a specific ATV component or system and, in addition to
the standard service procedures, includes disassembling, inspecting, and assembling instructions. When using this
manual as a guide, the technician should use discretion as to how much disassembly is needed to correct any given
condition.
The service technician should become familiar with the operation and construction of each component or system
by carefully studying the complete manual. This manual will assist the service technician in becoming more aware
of and efficient with servicing procedures. Such efficiency not only helps build consumer confidence but also saves
time and labor.
All Arctic Cat ATV publications and decals display the words Warning, Caution, Note, and At This Point to
emphasize important information. The symbol ! WARNING identifies personal safety-related information.
Be sure to follow the directive because it deals with the possibility of severe personal injury or even death. A
CAUTION identifies unsafe practices which may result in ATV-related damage. Follow the directive because it
deals with the possibility of damaging part or parts of the ATV. The symbol NOTE: identifies supplementary
information worthy of particular attention. The symbol
AT THIS POINT directs the technician to certain
and specific procedures to promote efficiency and to improve clarity.
At the time of publication, all information, photographs, and illustrations were technically correct. Some photo-
graphs used in this manual are used for clarity purposes only and are not designed to depict actual conditions.
Because Arctic Cat Inc. constantly refines and improves its products, no retroactive obligation is incurred.
All materials and specifications are subject to change without notice.
Keep this manual accessible in the shop area for reference.
Product Service and
Warranty Department
Arctic Cat Inc.
© 2011 Arctic Cat Inc. August 2011
®™ Trademarks of Arctic Cat Inc., Thief River Falls, MN 56701
Manual
Table of Contents

Table of Contents

Questions and Answers

  • J
    Jay DrakeAug 17, 2025
    Why Arctic Cat 2012 350 Offroad Vehicle engine will not start or is hard to start (No spark)?
    • J
      Jonathon ChanAug 17, 2025
      If your Arctic Cat Offroad Vehicle engine won't start due to a lack of spark, consider these possibilities: * The spark plug may be fouled, so clean or replace it. * If the spark plug is wet, clean and dry it. * A defective magneto requires replacing the stator coil. * A defective CDI unit needs to be replaced. * If the ignition coil is defective, replace it. * An open or shorted high-tension lead should be replaced.
  • J
    jmeyerAug 20, 2025
    What to do if my Arctic Cat 2012 350 Offroad Vehicle engine lacks power?
    • M
      Michelle JacksonAug 20, 2025
      If your Arctic Cat Offroad Vehicle engine lacks power, consider the following: * Incorrect valve clearance: Adjust the clearance. * Weak valve springs: Replace the springs. * Incorrect valve timing: Re-time the valve gear. * Worn piston rings or cylinder: Replace or service the rings and cylinder. * Poor valve seating: Replace the cylinder head/valves. * Fouled spark plug: Clean or replace the plug. * Worn rocker arms and shafts: Replace the arms and shafts. * Incorrect spark plug gap: Adjust the gap or replace the plug. * Obstructed air cleaner element: Clean the element. * Overfilled or contaminated oil: Drain excess oil and change the oil. * Intake manifold leaking air: Tighten or replace the manifold. * Worn cam chain: Replace the cam chain.
  • D
    Devin SandersAug 22, 2025
    What to do if my Arctic Cat 2012 350 engine overheats?
    • L
      laura44Aug 22, 2025
      If your Arctic Cat Offroad Vehicle engine is overheating, check these potential issues: * Excessive carbon deposits on the piston crown: Clean the piston. * Low oil level: Add oil. * Low octane or poor gasoline quality: Drain and replace the gasoline. * Defective oil pump: Replace the pump. * Obstructed oil circuit: Clean the circuit. * Intake manifold leaking air: Tighten or replace the manifold. * Fan malfunctioning: Check the fan fuse and replace the fan if necessary. * Fan switch malfunctioning: Replace the fan switch. * Gasoline level in the float chamber too low: Adjust the float height.
  • M
    Michelle RamosAug 25, 2025
    What to do if Arctic Cat 2012 350 engine stalls easily?
    • A
      Andrew SmithAug 26, 2025
      If your Arctic Cat Offroad Vehicle engine stalls easily, here are some things to check: * A fouled spark plug: Clean the plug. * A defective magneto: Replace the stator coil. * A defective CDI unit: Replace the CDI unit. * Valve clearance out of adjustment: Adjust the clearance. * Obstructed carburetor jets: Clean the jets.
  • K
    khanamberAug 27, 2025
    How to fix dirty or heavy exhaust smoke from Arctic Cat 2012 350?
    • K
      Kelly GarciaAug 28, 2025
      To address dirty or heavy exhaust smoke from your Arctic Cat Offroad Vehicle, consider the following: * If the oil is overfilled or contaminated, drain the excess oil or replace the oil. * Worn piston rings or cylinder may be the cause, so replace or service the rings and cylinder. * Worn valve guides may require replacing the cylinder head. * If the cylinder wall is scored or scuffed, replace or service the cylinder. * Worn valve stems should be replaced. * Defective stem seals should be replaced.
  • R
    Rebecca BradleyAug 30, 2025
    How to fix Arctic Cat Offroad Vehicle engine that runs poorly at high speed?
    • E
      ericnormanAug 30, 2025
      If your Arctic Cat Offroad Vehicle engine runs poorly at high speed, check the following: * High RPM "cut out" against RPM limiter: Shift into a higher gear or decrease speed. * Weak valve springs: Replace the springs. * Incorrect valve timing: Correct the timing; check the chain, sprockets, and cam chain tensioner. * Worn cam, rocker arms, or tappets: Replace the cam, arms, and tappets. * Spark plug gap too narrow: Adjust the gap. * Defective ignition coil: Replace the ignition coil. * Float level too low: Adjust the float height. * Obstructed air cleaner element: Clean the element. * Obstructed fuel hose: Clean or replace the hose.
  • L
    Larry GarciaSep 1, 2025
    Why Arctic Cat Offroad Vehicle engine idles poorly?
    • K
      Kelsey MurraySep 2, 2025
      If your Arctic Cat Offroad Vehicle engine idles poorly, consider these potential causes: * Valve clearance out of adjustment: Adjust the clearance. * Poor valve seating: Replace or service the seats and valves. * Defective valve guides: Replace the cylinder head. * Worn rocker arms or arm shaft: Replace the arms or shafts. * Defective magneto: Replace the stator coil. * Defective CDI unit: Replace the CDI unit. * Fouled spark plug or gap too wide: Adjust the gap or replace the plug. * Defective ignition coil: Replace the ignition coil. * Float out of adjustment: Adjust the float height. * Obstructed jets: Clean the jets. * Improper pilot screw setting: Adjust the pilot screw.
  • V
    Virginia DunnSep 4, 2025
    What causes excessive valve chatter in Arctic Cat Offroad Vehicle engine?
    • C
      Crystal WestSep 4, 2025
      Excessive valve chatter in your Arctic Cat Offroad Vehicle engine can be caused by: * Excessive valve clearance: Adjust the clearance. * Weak or broken valve spring(s): Replace the spring(s). * Worn rocker arm or rocker arm shaft: Replace the arm or shaft. * Worn camshaft: Replace the camshaft. * Worn valve tappets: Replace the tappets.
  • J
    Joann HannaSep 6, 2025
    What causes noise from timing chain in Arctic Cat 2012 350 engine?
    • C
      Calvin KramerSep 7, 2025
      If the noise in your Arctic Cat Offroad Vehicle engine seems to come from the timing chain, it could be due to: * A stretched chain: Replace the chain. * Worn sprockets: Replace the sprockets. * A malfunctioning tension adjuster: Repair or replace the adjuster.
  • J
    John ThomasSep 9, 2025
    What causes noise from crankshaft in Arctic Cat Offroad Vehicle engine?
    • K
      Kyle ReedSep 9, 2025
      If the noise in your Arctic Cat Offroad Vehicle engine seems to come from the crankshaft, consider: * A worn or burned bearing: Replace the bearing. * A worn or burned lower rod-end bearing: Replace the crankshaft. * Excessive connecting rod side clearance: Replace the crankshaft.

Summary

General Information

Torque Specifications

Torque values for various components during assembly.

Break-In Procedure

Recommended procedure for breaking in a new or overhauled engine.

Gasoline, Oil, and Lubricant Recommendations

Recommended types of gasoline, engine oil, and lubricants.

Preparation For Storage

Steps to prepare the ATV for long-term storage.

Preparation After Storage

Procedures for taking the ATV out of storage.

Periodic Maintenance

Schedule and procedures for routine maintenance tasks.

Hydraulic Brake Systems

Checking and bleeding hydraulic brake systems.

Engine;Transmission

Removing Engine;Transmission

Step-by-step procedure to remove the engine/transmission assembly.

Troubleshooting Engine Problems

Engine Starting Issues

Troubleshooting engine starting problems like no compression or no spark.

Troubleshooting Electrical Problems

Spark and Ignition Issues

Troubleshooting spark absent/weak, plug fouling, and ignition coil problems.

Charging System Issues

Diagnosing alternator charging problems and battery issues.

Starting System Issues

Troubleshooting starter button inoperability and related components.

Suspension System Service

Wheels and Tires Service

Procedures for removing, cleaning, inspecting, and installing wheels and tires.

Troubleshooting Suspension and Steering

Suspension Problems

Addressing issues like soft, stiff, or noisy suspension.

Steering Problems

Troubleshooting steering oscillation, pulling, and noise.

Steering, Frame, and Controls Service

Exhaust System Service

Procedures for removing, inspecting, and installing the muffler.

Arctic Cat 2012 350 Specifications

General IconGeneral
BrandArctic Cat
Model2012 350
CategoryOffroad Vehicle
LanguageEnglish

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