General Coverage:
Comprehensive service, repair, and maintenance for the 2012 Yamaha Raptor 250R ATV.
Estimated Pages:
Hundreds (exact count not specified, but described as comprehensive)
Type:
Service Manual / Repair Manual / Maintenance Manual / Overhaul Manual
Authenticity:
Claims to be the same manual used by Yamaha dealers.
Format:
Digital (Computer-generated, not scanned image)
Image Quality:
High-resolution, computer-generated text and images; no blurring when zoomed.
Searchability:
Likely searchable due to computer-generated format, enhancing ease of use.
Engine Mechanical:
Engine disassembly, assembly, inspection, and repair (e.g., cylinder head, piston, crankshaft, valve train, oil pump).
Engine Cooling:
Cooling system components, radiator, thermostat, coolant flow, and related checks.
Fuel System:
Carburetor assembly, disassembly, adjustments, fuel tank, fuel lines, and fuel filter.
Ignition System:
Ignition system components, CDI unit, spark plug, ignition timing checks.
Transmission Drivetrain:
Clutch operation, gear shifting mechanism, final drive, chain maintenance, and lubrication.
Suspension:
Front and rear suspension systems, shock absorbers, A-arms, linkage maintenance, and adjustments.
Brakes:
Brake system components (front and rear), hydraulic systems, brake pads, rotors, fluid replacement, and bleeding procedures.
Electrical System:
Wiring diagrams, lighting system, battery, starter motor, charging system (stator, rectifier/regulator), switches, and fuses.
Steering System:
Steering column, tie rods, ball joints, and steering knuckle components.
Frame Chassis:
Frame inspection, welds, and any chassis-related components.
Bodywork Plastics:
Removal and installation of body panels, fenders, and plastic components.
Maintenance:
Regular maintenance procedures, lubrication, fluid checks and changes, filter replacements, and tune-ups.
Disassembly Assembly:
Detailed, sequential steps for disassembling and reassembling all major components and systems.
Repair Rebuild:
In-depth repair procedures for worn or damaged components, including full engine and transmission overhauls.
Inspection Troubleshooting:
Diagnostic procedures, troubleshooting guides for common issues, and inspection points for wear and damage.
Adjustments:
Specific adjustment procedures for carburetor, clutch, brakes, and suspension.
Depth:
Comprehensive overhaul and detailed repair, suitable for professional mechanics and experienced DIY enthusiasts.
Diagrams:
Includes exploded diagrams for each disassembly section to aid identification and procedure execution.
Digital Format:
Likely PDF or similar digital document format, given the description.
Print Readability:
Designed for clear viewing and printing due to computer-generated nature.
Physical Format If Printed:
N/A (digital product described)
Physical Format If Printed:
N/A (digital product described)
Engine Type:
4-stroke, DOHC, 4-valve, Liquid-cooled
Displacement:
249cc (249.4 cm³)
Bore X Stroke:
74.0 mm x 58.0 mm
Compression Ratio:
11.2:1
Horsepower Estimated:
Approximately 18-20 HP (specific manufacturer figure not provided in product info)
Torque Estimated:
Approximately 15-17 lb-ft (specific manufacturer figure not provided in product info)
Carburetor Model:
Keihin 37 mm, FCR (Flat CR)
Fuel Type:
Unleaded gasoline
Fuel Tank Capacity:
3.2 US gal (12.0 L)
Oil Type Recommendation:
Yamalube 4 (or equivalent) API SG, API SH, API SJ SAE 10W-40
Transmission Type:
5-speed constant mesh, semi-automatic (no clutch lever)
Clutch Type:
Wet, multiple-disc
Final Drive:
O-ring sealed chain, Drive-side: 15-tooth pinion sprocket, Wheel-side: 38-tooth sprocket
Transmission Oil Type:
Yamalube 4 (or equivalent) API SG, API SH, API SJ SAE 10W-40
Transmission Oil Capacity:
1.70 US qt (1.6 L)
Oil Change Interval:
Every 3000 km (1800 miles) or 6 months. Consult manual for specific operating conditions.
Air Filter Cleaning:
Inspect every 1000 km (600 miles) or 6 months. Clean more frequently in dusty conditions.
Spark Plug Replacement:
Replace every 1000 km (600 miles) or 12 months. Check and clean at more frequent intervals.
Valve Clearance Check:
Check every 3000 km (1800 miles) or 24 months.
Chain Tension Adjustment:
Check and adjust every 500 km (300 miles) or monthly.
Coolant Type:
High-quality, ethylene glycol-based, anti-freeze coolant. Use a 50/50 mixture with distilled water.
Brake Fluid Type:
SAE J1703 or FMVSS No. 116 DOT 3.
Common Wear Items:
Front and rear brake pads, tires, wheel bearings, and chain/sprockets are typical wear items.
Carburetor Tuning:
May require periodic carburetor adjustments or cleaning, especially if fuel quality varies or unit sits for extended periods.
Cooling System Maintenance:
Proper coolant level and radiator cleaning are crucial for preventing overheating.
Yamaha Atv Legacy:
Yamaha has a long-standing reputation for producing reliable and performance-oriented ATVs, with the Raptor line being a flagship for sport ATVs.
Raptor 250R Positioning:
The Raptor 250R was positioned as a lighter-weight, nimble sport ATV offering excellent performance and handling for recreational riders, building on the success of larger Raptor models.
Production Years Raptor 250R:
The Raptor 250R was produced from 2008 to 2013.