2003 Honda BF135A / BF150A Outboard Motor Service Manual

Diagnostic procedures and component service for Honda BF135A & BF150A outboard motors. Ref: 07506-3000001

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Document Details

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Document Number / Seller:
30178 / Amy Davis
File Size:
22.25 MB
File Type:
PDF
Language:
English
Printable:
Yes
Category:
Outboard Motor
Last updated / verified
Aug 11, 2025

Models Covered & Key Technical Specifications

Authoritative Engineering Diagnostic Manual: Honda BF135A & BF150A Outboard Motors - Service Manual (2003) Covers diagnostic procedures and component service for Honda BF135A & BF150A outboard motors. Ref: 07506-3000001 | Documentary Catalog Index File.

  • Designated Engine Oil Capacity: 7.35 L (7.8 US qt, 6.5 lmp qt) represents the standard engine oil capacity.
  • Primary Torque Specification: 196 N.m (20.0 kgf.m, 145 lbf.ft) specifies the maximum torque value.
  • Advanced Ignition Timing: 0˚ ± 2˚ at 750 min–1 (rpm) B.T.D.C. defines the ignition timing baseline.
  • Defined Spark Plug Type: IZFR6K11 (NGK) is specified as the spark plug type requirements.
  • Key Gear Ratio Value: 0.467 (14/30) delivers the gear ratio parameters.
  • Certified Compression Ratio: 9.6 : 1 signifies the compression ratio thresholds.

Professional Workshop Service Manual & Technical Specifications

Authoritative Engineering Diagnostic Manual: Honda BF135A & BF150A Outboard Motors - Service Manual (2003)

Technical-Domain: Honda BF135A/BF150A Outboard Motors // Design-Core: Engine & Fuel System Logic // Technical-Domain: Maintenance, Diagnostics & Repair Procedures. Integrated-Framework Parameters Calibration-Standards
Engine Specifications Engine Type 4-stroke, D.O.H.C., 4-cylinder
Power Output Rated Power (Full throttle range) 100.7 kW (135 HP) @ 5,000 – 6,000 min–1 (rpm)
Torque Maximum torque 196 N.m (20.0 kgf.m, 145 lbf.ft)
Fuel System Fuel Injection System Electronic control
Lubrication Lubrication System Pressure lubrication by trochoid pump
Maintenance Schedule Oil Change Interval Every 6 months or 100 Hrs.

Maintenance hierarchies are structured into comprehensive sections covering engine specifications, fuel system diagnostics, lubrication procedures, and detailed maintenance schedules. This manual thoroughly documents the systematic operation and repair of the BF135A and BF150A outboard motors. It includes guidance on spark plug replacement, valve clearance adjustments, and fuel strainer servicing to ensure proper engine performance. Documents torque specifications for engine components to ensure proper fastener fatigue prevention.

Reassembly procedures are specified for engine covers and associated hardware.

Service intervals are documented for critical components like fuel strainers and spark plugs.

Component locations are identified for sensors and control modules within the engine bay.

Service procedures are documented for various systems including fuel and lubrication.

Calibration requirements are specified for engine timing and idle speed settings.

FAQ

Check the **standard** spark plug gap for the BF135A/BF150A. keyboard_arrow_down

1.0 – 1.1 mm (0.039 – 0.043 in) is the standard spark plug gap, with a service limit of 1.3 mm (0.051 in).

What does the **necessary** engine oil capacity entail? keyboard_arrow_down

7.35 L (7.8 US qt, 6.5 lmp qt) is the necessary engine oil capacity without oil filter replacement.

Reference the **recommended** torque for the oil drain plug. keyboard_arrow_down

23 N·m (2.3 kgf·m, 17 lbf·ft) is the recommended torque for the oil drain plug bolt.

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Reviews (3)

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Rated 4 out of 5 stars
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The manual is extremely detailed, making repairs straightforward. I had a quick question and received a response within hours!
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The download process was seamless and the diagrams in the manual are very helpful. Customer support was very quick to assist me with a minor issue. Highly recommended!