Product Category:
Marine Outboard Motors
Brand Reputation:
Yamaha is a highly respected manufacturer of reliable and high-performance marine engines.
Competitors:
Mercury Marine, Evinrude, Suzuki, Honda Marine
Benefit 1:
Empowers owners and technicians with factory-level repair knowledge.
Benefit 2:
Cost savings through DIY maintenance and repairs.
Benefit 3:
Ensures optimal performance and longevity of the Yamaha BR250.
Convenience:
Instant PDF download provides immediate access to critical information.
Primary Coverage:
Repair and Service
Secondary Coverage:
Maintenance, Troubleshooting, Specifications, Overhaul
Estimated Page Count:
Refer to Factory Service Manual (Specific count not provided in product info)
Manual Classification:
Repair Service Manual / Workshop Manual
Delivery Method:
Instant Download
Software Requirements:
Adobe PDF Reader, WinZip
Operating System Compatibility:
All Versions of Windows & Mac
Engine Mechanical:
Cylinder Head, Piston, Crankshaft, Connecting Rod, Valve Train, Lubrication System, Cooling System, Fuel System (Carburetor/Injection - specific to engine type)
Engine Electrical:
Ignition System, Starting System, Charging System, ECU (if applicable), Sensors, Wiring Diagrams
Fuel System:
Fuel Pump, Fuel Filter, Fuel Injectors (if EFI), Carburetor Assembly and Tuning
Ignition System:
Spark Plugs, Ignition Coils, CDI Unit (Capacitor Discharge Ignition), Timing
Cooling System:
Water Pump, Thermostat, Cooling Passages, Anodes
Lubrication System:
Oil Pump, Oil Filter, Oil Galleries, Oil Type and Capacity
Exhaust System:
Exhaust Manifold, Muffler, Water Jacketed Exhaust Components
Gearcase And Propulsion:
Gearcase Assembly, Lower Unit, Propeller Shaft, Drive Shaft, Water Pump (Lower Unit), Gear Ratios, Lubrication
Trim And Tilt:
Hydraulic System (if applicable), Components, Service Procedures
Routine Maintenance:
Oil Changes, Filter Replacements, Spark Plug Checks, Fuel System Cleaning, Cooling System Flushing, Anode Inspection/Replacement, Gearcase Lubrication
Disassembly And Assembly:
Complete engine teardown and reassembly of major components
Troubleshooting:
Diagnostic charts and procedures for common and uncommon problems
Repair Procedures:
Step-by-step instructions for overhauling engine components, replacing parts, and repairing systems
Overhaul Instructions:
Detailed instructions for complete engine rebuilding
Electrical Diagnostics:
Wiring diagram interpretation, multimeter usage, component testing
Depth Level:
Comprehensive (Factory Service Manual equivalent)
Target Audience:
Professional Technicians and Advanced DIY Mechanics
File Quality:
High-resolution PDF, Zoomable for clarity
Print Quality:
Full Printable
Searchability:
Likely text-searchable (common for PDF service manuals)
Binding:
Digital Download (Not applicable for physical binding)
Paper Quality:
Digital (Not applicable for paper type)
Engine Type:
Internal Combustion, likely 2-stroke or 4-stroke (specific details depend on the BR250 variant, often identified by horsepower rating like 250 HP).
Displacement:
Typically around 3.3L (200 ci) for a 250 HP class outboard. Exact displacement for BR250 to be confirmed in manual.
Bore X Stroke:
Specific values to be found within the manual. Example for similar Yamaha outboards can range widely.
Horsepower:
250 HP (as per product name)
Rpm Range Full Throttle:
Typically between 5000-6000 RPM for a 250 HP outboard. Specific range to be confirmed in manual.
Fuel Delivery:
Likely Multi-Point Fuel Injection (MPI) or Carbureted depending on the specific BR250 configuration for 2007. Manual will detail this.
Recommended Fuel:
Unleaded gasoline. Octane rating specified in manual (typically 87 or higher).
Fuel Capacity:
External fuel tank with recommended line size and connections. Tank capacity is boat dependent.
Type:
Forward, Neutral, Reverse (F-N-R) Gearcase
Features:
Power Trim & Tilt is standard on most 250 HP outboards.
Gear Ratios:
Specific gear ratio for the lower unit will be detailed in the manual (e.g., 1.75:1, 1.85:1).
Lower Unit Oil Type:
Yamaha Marine Gear Oil (or equivalent SAE 90 gear lubricant). Specific quantity and viscosity to be in the manual.
Certification:
NMMA (National Marine Manufacturers Association) certification likely present. Specific safety guidelines and warnings in the manual.
Safety Lanyard:
Standard kill switch with safety lanyard is a critical safety feature.
Overheat Warning:
Engine overheat warning system (visual and/or audible) is a common safety feature.
Low Oil Pressure Warning:
Low oil pressure warning system (if applicable) for 4-stroke engines.
Instrumentation:
Compatible with various Yamaha Command Link or analog gauges for RPM, trim, oil pressure, temperature, etc. Manual will detail specific gauge compatibility and troubleshooting.
Engine Monitoring:
Onboard diagnostics and warning systems are integrated for engine health monitoring.
Command Link:
This model is likely compatible with Yamaha's Command Link electronic control system for advanced diagnostics and engine management.
Engine Oil Change:
Typically every 100 operating hours or annually, whichever comes first. Manual will provide precise interval.
Gearcase Oil Change:
Typically every 100 operating hours or annually. Critical to check for water intrusion.
Fuel Filter Replacement:
Annually or every 100 hours, or as needed based on fuel quality.
Spark Plug Replacement:
Typically every 300-500 operating hours or as recommended based on wear. Specific type and gap in manual.
Engine Oil Type:
Yamalube 4M or equivalent FC-W certified synthetic blend or full synthetic marine engine oil. Specific viscosity (e.g., 10W-30, 10W-40) to be confirmed in manual.
Engine Oil Capacity:
Approximately 6.2 US quarts (5.8 Liters) for a 250 HP 4-stroke. Exact capacity in manual.
Common Problems General:
While Yamaha is reliable, common issues across outboards can include water pump impeller wear, thermostat failure, fuel system contamination, and thermostat clogging. Manual will address specific potential issues.
Corrosion:
Marine environments are harsh; proper flushing and anode maintenance are crucial to prevent corrosion.
Yamaha Marine:
Yamaha has a long-standing reputation for innovation, reliability, and performance in the marine industry since the 1980s.
Br Series:
The BR series represents Yamaha's line of powerful outboard motors, often favored for bass boats, flats boats, and general recreation due to their performance and reliability.
Manufacturing Location:
Yamaha outboard motors are primarily manufactured in Japan and the United States.
