Yamaha F300, LF300, F350, LF350 Outboard Service Manual

This service manual provides comprehensive coverage for Yamaha F300, LF300, F350, and LF350 outboard motors. It details systems including power unit, electrical, fuel, and PTT. Part number LIT-18616-03-08.

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Technical Safety Notice
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This official OEM document is intended for professional technicians and skilled operators. Performing service on mechanical equipment involves inherent risks. By purchasing, you acknowledge that RepairLoader provides original manufacturer data for informational purposes. Always prioritize safety: use correct tools, wear protective gear, and consult a certified professional if you are uncertain of any procedure.

Yamaha Models Covered & Key Technical Specifications

Models: Yamaha F300, LF300, F350, LF350
Sub-models / Variants: F300TR, LF300TR, F350TR, LF350TR
Build Years: 2008
Serial Numbers: F300TR: 1000001–, LF300TR: 1000001–, F350TR: 1000001–, LF350TR: 1000001–
Technical Data:

  • Engine type: 4-stroke, DOHC V8
  • Total displacement: 5,330 cm³ (325.2 cu. in)
  • Compression ratio: 9.6:1
  • Maximum output: 220.7 kW (300 HP) or 257.4 kW (350 HP) at 5,500 r/min
  • Engine idle speed: 600–700 r/min
  • Oil capacity (with filter): 8.0 L (8.45 US qt)
  • Spark plug gap: 1.0–1.1 mm (0.039–0.043 in)
  • Lower unit gear ratio: 1.73 (26/15)
Technical Specifications
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Document Number / Seller:
31306 / Walter Edwards
File Size:
22.76 MB
File Type:
PDF
Language:
English
Pages:
572
Printable:
Yes
Category:
Outboard Motor
Last updated / verified
May 19, 2025

Yamaha Manual Features & Content Preview

2008 Yamaha F300, LF300, F350, LF350 Service Manual

  • Covers 2008 Yamaha F300, LF300, F350, and LF350 outboards, including standard and counter-rotation models with V8 DOHC engine configurations
  • Official OEM publication P/N LIT-18616-03-08, 1st edition February 2008
  • Contains 572 pages of technical documentation featuring exploded-view diagrams, torque tables, wiring schematics, and sensor diagnostic data
  • Downloads to your account within seconds of checkout
  • Permanent availability in your purchase account — no re-buy required
  • Laid out for standard letter and A4 printing
  • Full-text search finds any part number in seconds
  • This 1st edition is the primary reference manual released for the F300/F350 5.3L V8 launch build

Manual Content Summary

This factory service publication provides technical coverage for the Yamaha F300, LF300, F350, and LF350 marine engine series. The documentation opens with comprehensive general information, including safety precautions for hazardous materials, standard tool lists, and specific model identification markers. Subsequent sections detail the technical features of the 5,330 cc V8 power unit, including the variable camshaft timing system, electronic control module interactions, and the specialized fuel injection control logic. Detailed chapters focus on the electrical system layout, fuel supply chain management, and the specific architecture of the power unit, lower unit, and bracket unit, ensuring technicians have the necessary data for maintenance procedures and system evaluations.

Specification and Technical Data

Technical data is presented through specialized charts that document torque values, fluid capacities, and sensor tolerances. The cylinder head specification table lists a warpage limit of 0.1 mm. Engine oil capacity is documented at 8.0 liters with the oil filter included. The F350/LF350 models require premium unleaded gasoline, while the F300/LF300 series utilizes regular unleaded fuel. Compression pressure for these models is listed at 740 kPa (107.3 psi). Spark plug gaps for the NGK LFR6A-11 are set to 1.0–1.1 mm. The what an OEM service publication covers includes detailed electrical diagrams for ignition coil circuits and sensor pinouts. All service data shown here is for reference only — qualified technicians and the original OEM documentation remain the authoritative source for any hands-on work. This official 572-page Yamaha outboard workshop manual documents the F300, LF300, F350, and LF350 2008 models, including engine, electrical, and fuel system specifications for the 5.3L V8 marine platform.

Manual FAQ, Purchase & Download Details

What power unit and electrical system coverage details are found in this manual? keyboard_arrow_down

Manual contains extensive data regarding the 60 degree V8 engine and the multi-point fuel injection systems. It also includes comprehensive reference information for the digital electronic control and sequential direct ignition systems.

Is there information about fluid capacities or oil requirements in this document? keyboard_arrow_down

Technical specifications section lists the oil pan capacity as 8.0 liters to assist with fluid management.

Are wiring diagrams and connector pinout references included for the electrical sections? keyboard_arrow_down

Chapter 5 is dedicated to the electrical system and contains the necessary wiring diagrams and electrical reference values. These pages serve as a complete reference for the various electronic control components described in the manual.

Which formats are available for this service manual download? keyboard_arrow_down

Publication is provided as a digital PDF file, which is compatible with most modern mobile devices and computer systems for instant access.

Can I find technical specifications or reference tables for the outboard motor in this manual? keyboard_arrow_down

Manual includes multiple specification tables that outline vital engine parameters like idle speed ranges and spark plug gap requirements. These reference charts also cover technical compression ratio benchmarks and other component details. All data is structured to provide a clear reference for the 2008 F300, LF300, F350, and LF350 model series.

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