Yamaha F350 & LF350 Outboard Motor Factory Service & Repair Manual 2007 • P/N LIT-18616-03-02, 1st Edition

Technical Specifications and Features

• Covers 2007 Yamaha F350 and LF350 4-stroke V8 outboard motors, including standard and counter-rotation variants with 25-inch and 30-inch transom configurations
• Official Yamaha publication P/N LIT-18616-03-02, 1st Edition July 2007
• Contains 47 exploded-view diagrams, 6 detailed circuit diagrams, and 12 comprehensive torque-specification tables
• Available as an instant download directly to your account immediately after checkout
• High-resolution file format ensures clear detail when printing shop-floor reference sections for complex repair jobs
• This 549-page OEM manual is the authorized reference detailing engine, chassis, electrical, and fuel-injection specifications for the 6AW/6AX-series outboard launch build

Documentation Overview

This service manual outlines the diagnostic procedures and component breakdowns required for the 6AW and 6AX-series outboard motors. The text provides a clear technical framework for the 60-degree V8 engine. It details the Electronic Fuel Injection control, variable camshaft timing unit, and Digital Electronic Control system. Professional technicians use these schematics to trace the engine control module functions, verify ignition timing strategies, and locate the integrated knock control sensors across the power unit. Accurately assessing these systems speeds up turnaround times in the service bay, streamlining every major repair and diagnostic workflow.

Specification and Reference Data

The factory workshop documentation includes precise tolerances for pistons, camshafts, and valves. Cylinder head warpage limits are strictly set at 0.08 mm. Crankshaft journal oil clearance ranges from 0.026 to 0.063 mm. For the Yamaha F350, intake valve clearance measures 0.20 ± 0.03 mm. The cooling system for this specific V8 block utilizes a water-wall design heavily documented in the technical features section. At engine idle speed, the specified fuel system pressure is 260 kPa.

Always observe standard shop safety protocols when handling high-pressure fuel systems or heavy engine components. These specifications are provided for general reference; mechanics must rely on the full factory documentation to ensure safe, accurate, and compliant mechanical work.