Service Manual for Yamaha YZF-R6L, YZF-R6CL Motorcycle (Model Year: 1999)
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Models Covered & Key Technical Specifications
- YZF-R6L (1999)
- YZF-R6CL (1999)
- YZF-R6L 5GV1 (1999)
- YZF-R6CL 5GV2 (1999)
- YZF-R6L 5GV3 (1999)
Professional Workshop Service Manual & Technical Specifications
Complete Service Manual for Yamaha YZF-R6L & YZF-R6CL (1999)
Unlock the full potential of your supersport machine with the official Service Manual for the 1999 Yamaha YZF-R6. This is the exact same technical documentation used by factory-trained Yamaha technicians to maintain, diagnose, and repair the legendary first-generation R6. Whether you are performing a simple oil change or a complete engine overhaul, this manual provides the professional-grade data required for precision work.
This manual is specifically designed for the following 1999 models:
- YZF-R6L (Standard U.S.A. Model)
- YZF-R6CL (California Model with Evaporative Emission Control)
- YZF-R6L (Canada Model)
Pro-Level Technical Insights
This document goes far beyond basic maintenance. It contains deep-dive technical specifications and step-by-step procedures that are crucial for the high-revving 600cc DOHC inline-four engine.
- Model Identification & Serial Numbers: For accurate parts ordering and identification, the manual lists the specific model codes. The YZF-R6L (U.S.A.) carries the code 5GV1, while the California YZF-R6CL is identified by 5GV2. The Canadian YZF-R6L is coded as 5GV3.
- Engine Precision: Detailed specs for the 65.5 x 44.5 mm bore and stroke, 12.4:1 compression ratio, and the intricate valve train. Includes full valve pad selection tables and clearance adjustments (Intake: 0.11-0.20 mm; Exhaust: 0.21-0.30 mm).
- Advanced Troubleshooting: Professional diagnostic charts to solve issues with the C.D.I. ignition system, electrical charging (AC Magneto), and the Keihin CVRD37 carburetor synchronization.
- Chassis & Suspension Tuning: Complete overhaul instructions for the 43mm telescopic forks and the link-type rear suspension. Includes exact oil levels (476 cm³ per fork leg) and clicker settings for rebound and compression damping.
What is Included
- General Information: Dimensions, weights (373 lb dry for non-CA models), and torque conversion tables.
- Periodic Maintenance: Official service intervals (initial 600 miles, then every 4,000/8,000 miles) to keep your R6 in showroom condition.
- Engine Overhaul: Complete breakdown of the 6-speed constant mesh transmission, clutch assembly, and cooling system.
- Electrical System: Full wiring diagrams, bulb wattages, and sensor resistances (e.g., Pickup coil: 248-372 Ohms).
- Cable Routing: Detailed illustrations for the correct pathing of throttle cables, brake hoses, and the main wire harness to prevent binding and wear.
Optimized for the Workshop
Designed for the hands-on owner and the professional mechanic, this manual features high-quality exploded diagrams and sequential job instruction charts. Every procedure includes specific tightening torques (like the 150 Nm required for the rear wheel axle nut) and lubrication points using the correct grease types (Lithium soap base or Molybdenum disulfide).
Stop guessing and start wrenching with the data that built the R6 legacy. This manual ensures your 1999 Yamaha YZF-R6 remains a peak-performing weapon on the track and the street.
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