Arctic Cat DVX 250 / Utility 250 ATV Service & Repair Manual (2006)

Arctic Cat’s 2006 DVX 250 / Utility 250 service manual covers maintenance, diagnosis and repair for both ATV models, with separate procedures for their transmission and rear-drive arrangements.

PDF Search, Bookmarks and Wiring Detail

Text search and diagram navigation: The service chapters support text search, and embedded PDF bookmarks open all 11 sections and both wiring sheets. Labels within the wiring-diagram images are not searchable. Small wire-color and connector labels require zooming.

One printable English-language PDF contains 147 pages total, including one combined cover/contents page, 144 section pages and two color wiring sheets.

Engine Overhaul, Belt Drive and ATV System Service

The following highlights are a selection of the contents. Additional topics include spark-arrester cleaning and headlight servicing.

• Maintenance and tune-up: Step-by-step instructions for valve/tappet adjustment and compression testing, plus the Periodic Maintenance Chart, Viscosity Chart and storage preparation.

• Engine repair: Engine removal, cylinder-head and valve inspection, piston and ring service, cylinder honing, crankcase separation, crankshaft measurement and cam-chain timing.

• Transmission and clutch: V-belt replacement, continuously variable transmission pulley inspection, centrifugal-clutch disassembly and separate DVX and Utility gearbox procedures.

• Fuel and cooling: Carburetor teardown and inspection, oil-pump checks, radiator removal, thermostat testing and water-pump seal replacement.

• Hydraulic brakes and controls: Brake bleeding, model-specific rear-pad replacement, front-pad inspection, master-cylinder replacement and throttle-control removal and installation.

• Steering and suspension: Steering-post and tie-rod service, toe-in adjustment, front A-arm inspection, shock-absorber replacement and swing-arm bearing and bushing work.

• Electrical diagnosis: Ignition-coil, magneto, regulator/rectifier and starter-relay tests, instrument checks, symptom-based troubleshooting tables and separate wiring diagrams for both models.

This manual is suited to technicians and experienced mechanics equipped for engine measurement, electrical testing and work on spring-loaded clutch assemblies.

Engine Inspection and Reassembly

Component inspection procedures and matching wear limits support decisions about which engine parts can be reused during a rebuild. Coverage includes valve stems and guides, camshaft journals, piston-ring end gaps, cylinder condition and crankshaft runout.

The engine/transmission section distinguishes work that can be performed in the frame from center-crankcase service requiring engine removal. Reassembly instructions cover piston-ring orientation, balance-shaft alignment and camshaft timing.

DVX Chain Drive and Utility Shaft Drive

The Rear Drive Assembly Schematics distinguish the DVX chain-driven rear axle from the Utility driveshaft and final-drive gear case. DVX coverage includes sprocket inspection and axle-bearing replacement; Utility procedures address the universal joint, axle removal and swing-arm pivot bearings.

The Utility final-drive gear case is replaced as an assembly if its gears catch, bind or operate noisily; this section does not provide an internal gear-case overhaul.

The belt-installation illustrations identify crankshaft-spline protrusion and stepped-washer seating. Incorrect belt/sheave positioning can leave the drive pulley under-tightened and damage the drive sheave or crankshaft.

Carburetor, Lubrication and Cooling

The Keihin PTG-22 Carburetor Schematic identifies the jets, float components and diaphragm alongside the disassembly and inspection procedures. The Oil Flow Chart accompanies oil-pump inspection; a defective pump is replaced as a unit.

Cooling-system work includes thermostat opening checks and water-pump disassembly. The pump instructions identify the mechanical seal and pump-drive seal as a replacement pair.

Electrical Fault Tracing and Instruments

Starter-relay tests distinguish control-circuit faults from a failed starter motor, supporting diagnosis before replacement. The starter motor itself is treated as a replacement unit.

Peak-voltage testing specifies a Fluke Model 73 multimeter with Peak Voltage Reading Adapter P/N 0644-307. The Utility LCD gauge section covers display and circuit checks followed by assembly replacement, rather than internal gauge repair.

Brake Service and Chassis References

The DVX rear caliper has separate pad sets operated by the main brake lever and auxiliary pedal. The manual distinguishes this arrangement from the Utility rear-brake procedures and provides separate torque tables for both models.

Front and auxiliary master cylinders are replaced as assemblies. Suspension coverage includes rear spring-preload adjustment and illustrated bearing and seal installation.

Working on fuel and electrical systems requires proper training; consult a certified technician when a task exceeds your experience.

A Preview of Valve and Carburetor Settings

For both models, the cold-engine valve/tappet specifications are 0.03–0.08 mm for the intake and 0.08–0.13 mm for the exhaust. These values accompany the adjustment and engine-inspection coverage.

The Keihin PTG-22 tables specify a float-arm height of 14.8 mm (0.58 in.) for both models. The carburetor assembly section explains the float-to-needle contact condition used when checking that measurement.