Positioning:
High-performance track-day and racing equipment for the Yamaha YZFR6.
Competitors:
Other manufacturer-specific race kits and aftermarket performance tuning solutions.
Feature List:
Engine performance enhancement, ECU remapping, chassis tuning, track-focused components.
Audience:
Yamaha YZFR6 owners seeking to participate in track days and amateur road racing.
Coverage:
Yamaha YEC SS Race Kit for 2003-2004 YZFR6
Pages:
Not specified in product info, typically ~150-300 pages for a comprehensive race kit manual.
Type:
Race Kit Service/Technical Manual
Format:
Likely PDF (digital), possibly physical print.
Engine Preparation:
Specific modifications and tuning for the race kit engine components.
Electronics And ECU:
YEC ECU mapping, wiring harness modifications, sensor integration for race use.
Chassis Setup And Tuning:
Suspension adjustments, frame modifications, aerodynamic enhancements for racing.
Fuel And Ignition:
Race-specific fuel system components and ignition timing adjustments.
Exhaust System:
Installation and tuning of the YEC race exhaust system.
Cooling System:
Race-oriented cooling system modifications and maintenance.
Drivetrain And Clutch:
Race-spec clutch components and drivetrain adjustments.
Brakes:
Brake system upgrades and maintenance for racing conditions.
Wheels And Tires:
Race wheel fitment and tire pressure recommendations.
Installation Guide:
Step-by-step instructions for installing the YEC SS Race Kit components.
Tuning Procedures:
Detailed guidance on engine, suspension, and electronics tuning for race performance.
Troubleshooting Diagnostics:
Specific troubleshooting steps for race-configured systems.
Maintenance Schedules:
Race-specific maintenance intervals and procedures.
Rebuild Procedures:
Instructions for rebuilding race-specific engine and drivetrain components.
Depth:
Advanced, focusing on race modifications and performance optimization, assumes prior mechanical knowledge.
Searchability:
Typically text-searchable for quick information retrieval.
Print Readability:
High, with clear diagrams and text suitable for printing.
Binding:
N/A (for digital format), typically spiral-bound for printed manuals.
Paper Quality:
N/A (for digital format), typically durable cardstock for covers and quality paper for interior pages if printed.
Engine Type:
998cc Liquid-cooled, 4-stroke, DOHC, 5-valve inline-four.
Bore X Stroke:
75 mm x 56.5 mm
Compression Ratio:
12.8:1 (stock, may be modified by race kit)
Stock Horsepower:
Approx. 123 hp @ 11000 rpm (stock)
Stock Torque:
Approx. 52.7 ft-lb @ 9500 rpm (stock)
Race Kit Performance Gain:
Significant horsepower and torque increase through ECU, exhaust, and internal modifications. Exact figures depend on kit configuration and tuning.
Fuel Delivery:
Electronic Fuel Injection (EFI) with dual injectors per cylinder (stock).
Recommended Fuel:
Premium Unleaded (91+ octane), specific race fuels may be recommended for race kit operation.
Transmission Type:
6-speed, constant mesh, sequential.
Clutch Type:
Wet, multiple-disc, assist & slipper clutch (stock).
Race Kit Clutch Upgrades:
May include stronger clutch springs, different friction plates, or a race-specific slipper clutch mechanism.
Gear Ratios:
Specific gear ratios for optimal track performance may be part of the kit or recommended tuning.
Overall Length:
2040 mm (stock)
Overall Width:
720 mm (stock)
Overall Height:
1105 mm (stock)
Seat Height:
835 mm (stock)
Wheelbase:
1380 mm (stock)
Dry Weight:
162 kg (stock)
Wet Weight:
184 kg (stock, with all fluids)
Race Kit Weight Reduction:
Potential for weight reduction through lighter exhaust, bodywork, and component selection.
Racing Homologation:
Designed to meet the requirements of various racing organizations (specific homologation details may be in the manual).
Braking System Front:
Dual 298mm hydraulic disc, radial-mount 4-piston calipers (stock).
Braking System Rear:
220mm hydraulic disc, single-piston caliper (stock).
Suspension Front:
43mm upside-down telescopic fork, fully adjustable (stock).
Suspension Rear:
Single shock, adjustable preload, compression, and rebound damping (stock).
Lighting:
Halogen headlights, LED taillight (standard, some may be removed for racing).
Instrument Cluster:
Digital speedometer, analog tachometer, gear indicator, fuel gauge, clock, trip meters (standard).
Race ECU Features:
May include data logging capabilities, adjustable engine braking, traction control (depending on kit complexity).
Traction Control:
None (stock).
Diagnostics Port:
OBD-II or proprietary diagnostic connector for ECU access.
Oil Change Interval:
Refer to the YEC manual for race-specific recommendations; typically every 5-10 track hours or per season for racing.
Spark Plug Replacement:
Race-specific intervals, consult manual.
Chain And Sprockets:
Regular cleaning, lubrication, and tension checks are critical for race conditions.
Valve Clearance Check:
Crucial for high-performance engines, specific intervals will be in the manual.
Engine Oil Type:
Yamalube Performance 10W-40 or equivalent JASO MA certified synthetic racing oil.
Coolant Type:
Pre-mixed 50/50 ethylene glycol-based coolant with corrosion inhibitors.
Brake Fluid:
DOT 4 or DOT 5.1 high-performance brake fluid.
Common Wear Items:
Clutch wear, chain and sprocket wear, suspension seals, general engine wear from high RPM use.
Race Kit Specific Concerns:
Proper installation of race kit components to avoid premature failure, correct ECU mapping for engine longevity.
