2006 Arctic Cat Y-6 / Y-12 Youth ATV Factory Service Manual (P/N 0638-165)

• Covers 2006 Arctic Cat Y-6 and Y-12 youth ATV platforms (50cc Utility and 90cc DVX).
• Official factory publication, P/N 0638-165 (February 2006 edition).
• Includes 122 pages of technical data, featuring 91 exploded-view component illustrations and 11 circuit-reference tables.
• Details Keihin PTE and PB carburetor baseline settings and tuning requirements specific to these small engine displacements.

Document Structure and Technical Depth

This 2006 Arctic Cat Y-6 and Y-12 service manual provides complete documentation for engine, chassis, and electrical systems. It breaks down the 50cc and 90cc engine platforms piece by piece. You will find detailed component views covering transmission internals, drive chain adjustment, and steering post geometry. The guide delivers strict technical specifications for the Keihin carburetor circuits, cooling system thresholds, and electrical component testing parameters. Working on ATVs involves handling highly flammable fluids and pressurized suspension components. Technicians must verify all factory safety protocols outlined within the manual prior to beginning diagnostic work to prevent injury. Additionally, the text outlines exact fluid requirements, including procedures for transmission lubricant changes and engine oil services.

Specification Highlights and Reference Data

Accurate tolerances are critical for these small displacement engines. This publication delivers precise charts for valve and tappet clearance, spark plug gap, and engine compression ranges. For fluid capacities, the 2006 Arctic Cat Y-6/Y-12 engine requires exactly 0.8 liters of oil. The transmission takes 100 ml of SAE 80W-90 Hypoid lubricant. Ignition timing is factory-set to 28° BTDC at 4000 RPM. Spark plug gaps remain strictly specified at 0.6–0.7 mm across both engine variants. By providing these exact factory numbers, the documentation eliminates guesswork during routine maintenance or full engine overhauls.