General Coverage:
Comprehensive service, repair, and troubleshooting for Yamaha Raptor 250R YFM250R ATV
Estimated Pages:
Hundreds (as per description)
Type:
Full Service & Repair Workshop Manual
File Compatibility:
Windows & MAC Computers
Usage License:
Lifetime use, unlimited installations
Engine:
Complete engine overhaul, top-end rebuild, bottom-end procedures, valve adjustments, timing chain, lubrication system
Fuel System:
Carburetor service and adjustment, fuel pump, fuel tank, fuel lines
Ignition System:
Ignition coil, CDI unit, spark plug diagnosis and replacement, wiring diagrams
Transmission:
Clutch operation, gear selection, internal transmission inspection and repair, chain drive maintenance
Cooling System:
Radiator, coolant, fan operation, thermostat
Brakes:
Hydraulic brake system service, caliper rebuild, brake pad replacement, master cylinder, bleeding procedures
Suspension:
Front and rear suspension components, shock absorber service, A-arm bushings, steering knuckles
Steering:
Steering column, tie rods, steering linkage, wheel alignment
Electrical System:
Battery, starter motor, lighting system, wiring harnesses, fuses, troubleshooting with diagrams
Body Chassis:
Frame inspection, plastic body panel removal and installation, seat, handlebars
Maintenance:
Routine maintenance checks, oil changes, filter replacements, lubrication points, battery care
Troubleshooting:
Systematic diagnostic procedures for common and uncommon issues, fault finding charts
Repair:
Step-by-step instructions for disassembly, assembly, and repair of all major components
Rebuilds:
Complete engine and component rebuilds with detailed specifications
Diagnostics:
Comprehensive diagnostic trees and fault code interpretation (if applicable to this era)
Wiring:
Detailed electrical wiring diagrams for all systems
Depth:
Professional-level, suitable for complete overhauls and advanced diagnostics
Diagrams:
Hundreds of detailed exploded diagrams and pictures
Engine Type:
Four-stroke, liquid-cooled, DOHC, 4-valve
Bore X Stroke:
74.0 mm x 58.0 mm
Compression Ratio:
11.2:1
Horsepower:
Approx. 22.7 HP @ 7500 RPM (estimated, manual will provide exact)
Torque:
Approx. 16.4 lb-ft @ 7000 RPM (estimated, manual will provide exact)
Fuel Delivery:
Teikei Y28P Carburetor
Ignition Type:
TCI (Transistor Controlled Ignition)
Oil Type Recommendation:
Yamaha Genuine Yamalube 4 (or equivalent SAE 10W-40) API SG, SJ
Coolant Type Recommendation:
Ethylene glycol-based antifreeze coolant with demineralized water (50:50 ratio)
Display Type:
Digital LCD instrument cluster
Instrumentation:
Speedometer, odometer, trip meter, clock, engine hour meter, neutral indicator, reverse indicator, coolant temperature warning.
Engine Oil Change:
Every 3000 km or 6 months (whichever comes first)
Air Filter Cleaning:
Every 1000 km or as needed in dusty conditions
Spark Plug Replacement:
Every 6000 km or 12 months
Valve Clearance Check:
Every 6000 km or 12 months
Engine Oil Viscosity:
SAE 10W-40
Coolant Mixture:
50% Genuine Yamaha Super Coolant and 50% De-ionized Water
Brake Fluid Type:
DOT 3 or DOT 4
Common Wear Items:
Brake pads, chain and sprockets, wheel bearings, A-arm bushings, clutch plates.
Carburetor Tuning:
May require periodic adjustment due to altitude or fuel variations.
Manufacturer Focus:
Yamaha Corporation is renowned for its diverse range of products, including motorcycles, musical instruments, and marine engines, with a strong legacy in performance and engineering.
Raptor Lineage:
The Raptor line is Yamaha's flagship sport ATV series, known for its performance, handling, and reliability, with the 250R offering a more accessible entry point into the performance segment.
Assembly Location:
Likely assembled in Japan or at Yamaha's global manufacturing facilities.
