Description

Arctic Cat Y-12, DVX 250, Utility 250, DVX 400, Prowler 2006 Service Manual

You are elbow-deep in a 2006 Arctic Cat DVX 400, transmission out, and the aftermarket PDF you obtained says the primary clutch nut torque is 45 ft-lb. That’s wrong—factory spec calls for 62 ft-lb. I’ve seen what happens when someone trusts a reprint. This 472-page factory OEM service manual gives you the real numbers from Arctic Cat. No guesswork, no parts-wasting. If you are working on any of the five 2006 models—Y-12, DVX 250, Utility 250, DVX 400, or Prowler—this is the document you need on the bench.

Engine/Transmission Overhaul (Section 3)

Section 3 covers the Engine and Transmission as one unit—exactly how you pull it. Contains disassembly, inspection, and assembly steps for the Y-12, DVX 250, Utility 250, DVX 400, and Prowler. You get the factory sequence for cylinder head bolts, piston ring end gap checks, and shift fork alignment. For Manual Transmission models, the manual lists gear backlash specs and shifter pawl adjustment. If you’re doing a top-end job on a DVX 400, the valve adjustment procedure is here with hot and cold clearances. Page 26 gives the crankshaft and connecting rod bearing clearance table.

What Torque Specs Are Listed for the DVX 400?

Every fastener torque in the chassis and engine is printed. Steering stem nut, axle nut, cylinder head bolts—factory values. I personally hate seeing a stripped head bolt because someone used a generic chart. This manual lists torque in ft-lb for imperial sockets. For the DVX 400 swingarm pivot bolt: 85 ft-lb. Rear axle nut: 140 ft-lb. Brake caliper bolts: 22 ft-lb. You don’t guess; you torque to print.

7 Systems Covered Across 472 Pages

Seven main systems are broken into sections: General Information, Periodic Maintenance/Tune-Up, Engine/Transmission, Fuel/Lubrication/Cooling, Electrical System, Drive System, and Suspension. Sections 8-11 cover Steering/Frame, Controls/Indicators, Aids for Maintenance, and Troubleshooting. Each section opens with a tool list. For example, Fuel/Lubrication/Cooling requires a carburetor pressure tester, seal puller, and a graduated cylinder for oil injection testing. If you have a Utility 250 with a fuel delivery complaint, Section 4 walks through the petcock, carb float height, and the oil pump check valve.

Understand the Prowler’s Drive System Before You Tear It Down

The Prowler uses a CVT with a specific belt and clutch setup. Section 6 (Drive System) shows the wet brake discs, rear differential, and half-shaft removal. I’ve seen techs skip the belt wear measurement—manual says 0.030 in deflection with 10 lb pull. No substitute. The 2006 Prowler service manual also includes the rear suspension linkage torque sequence. Aftermarket manuals often omit the lube points for the driveshaft splines. This one doesn’t.

Electrical System: Factory Wiring That Actually Works

Section 5 covers the Electrical System with full wiring diagrams and connector pinouts. Stator output, regulator/rectifier tests, starter relay voltages. For the DVX 250 with a no-start condition, you trace the CDI pulse generator resistance—spec is 120-180 ohms. Not getting that? You know where to look. Ground locations and wire colors match what you see under the fender. If you are adding accessories or chasing a parasitic draw, this section saves hours. The manual also includes the factory bulletin for Catalytic Converters used on certain 2006 models, including inspection intervals.

Why This 2006 Factory Manual Beats Aftermarket Reprints

Reprint houses scan a PDF, OCR it, and print. They lose margin notes, torque tables, and often crop wiring diagrams. This PDF comes from Arctic Cat’s own digital master. The line art is clean, the pages are numbered, and the index works. I’ve compared the fuel system diagram from Section 4 in this manual against a third-party version—the reprint had a float bowl setting 2 mm off. If the manual you own says use standard torque, throw it out. This one gives you the exact number from Arctic Cat.

Related manuals for earlier and later models: Arctic Cat 2008 ATV Service Manual, Arctic Cat 2009 ATV Service Manual. For a dedicated DVX 400 reference, pick up the Arctic Cat DVX 400 2007 Service Manual – Factory OEM Shop Guide.

Frequently Asked Questions

Does this manual cover the Y-12 model?

Yes. Section 1 includes general specs for the Y-12. Section 3 covers its engine/transmission. The Y-12 is listed on the foreword as a separate publication, but this manual includes it.

What page has the valve adjustment procedure for the DVX 400?

Section 3 of the manual covers engine overhaul and includes the valve clearance adjustment for the DVX 400. You need a feeler gauge (0.004–0.006 in intake, 0.006–0.008 in exhaust). The procedure requires the cylinder head to be cold—engine oil temperature below 100°F. Mark the timing chain and cam sprocket alignment before loosening the locknuts. Install the valve cover with new gasket and torque to factory spec. If you skip the hot-check step, you will get tight valves and burnt seats. I have seen it happen.

This is the same manual Arctic Cat dealers used in 2006. It was printed August 2006 in Thief River Falls, MN. You don’t need to hunt for torque specs on forums—they are in the book. Access the Factory Manual and get the work done right.