🏷️ Basic Information

Make:

Yamaha

Model:

XJ600S Diversion / XJ600N

Model Variant:

XJ600S (Faired), XJ600N (Naked)

Year:

1998

Chassis Code:

4BR (for 1998 models, often shared with previous years)

👋 Introduction

Category:

Middleweight Naked/Sportbike Motorcycle

Target Audience:

DIY motorcycle enthusiasts, independent repair shops, Yamaha XJ600 owners

Competitors:

Suzuki GS500, Honda CB500, Kawasaki GPZ500

Vehicle Type:

Reliable, versatile middleweight motorcycle offering both naked and faired variants

Manual Purpose:

Comprehensive resource for maintaining, troubleshooting, and repairing the Yamaha XJ600

📋 Manual Details

Engine:

Complete engine disassembly, assembly, troubleshooting, and tuning

Transmission:

Gearbox inspection, repair, and maintenance

Chassis:

Frame, suspension (front and rear), steering, wheels, and tires

Electrical System:

Wiring diagrams, ignition system, lighting, charging system, starting system

Braking System:

Front and rear brake inspection, service, and repair (including caliper, master cylinder, and fluid)

Fuel System:

Carburetor disassembly, cleaning, adjustment, and fuel tank service

Bodywork:

Fairings (for XJ600S), tank, seat, and other body components

Troubleshooting:

Detailed diagnostics for common and uncommon issues

Estimated Pages:

300+

Type:

Full Service Repair Manual

Language:

English

Format:

Digital (likely PDF)

📖 Manual Coverage

All Major Systems:

Yes, covers all mechanical, electrical, and chassis systems

Maintenance Tasks:

Routine maintenance (oil changes, filter replacements, chain adjustment, spark plug replacement, valve clearance checks), scheduled servicing

Repair Procedures:

Step-by-step guides for component removal, disassembly, inspection, repair, and reassembly

Diagnostic Procedures:

Troubleshooting charts, symptom analysis, and fault finding guides

Rebuilds:

Comprehensive instructions for engine and transmission rebuilds

Depth:

Detailed, from basic user maintenance to complex internal component repair and rebuilding

📊 Manual Specifications

File Type:

PDF

Searchability:

Searchable text content for quick information retrieval

Image Resolution:

High-resolution images and diagrams for clarity

Binding:

N/A (Digital Format)

Paper Quality:

N/A (Digital Format)

⚙️ Engine Specifications

Type:

Four-stroke, liquid-cooled, DOHC, inline four-cylinder

Displacement:

599 cc

Bore X Stroke:

62.0 mm x 49.6 mm

Compression Ratio:

10.0:1

Horsepower Peak:

Approx. 60 HP @ 9000 RPM

Torque Peak:

Approx. 52 Nm (38.4 lb-ft) @ 7000 RPM

Carburetors:

Mikuni BS36, 4 x Constant Velocity (CV) carburetors

Fuel Tank Capacity:

17 Liters (approx. 4.5 US gallons)

Ignition System:

Digital TCI (Transistor Controlled Ignition)

Cooling Method:

Liquid-cooled

Oil Type:

API SG or SH, SAE 10W-40 motorcycle oil recommended

Oil Capacity:

3.2 Liters (with filter change), 2.9 Liters (without filter change)

🔧 Transmission

Type:

Constant mesh 6-speed sequential

Clutch:

Wet, multi-plate, diaphragm spring

Transmission Options:

N/A (Standard 6-speed)

Final Drive:

O-ring sealed chain drive

Transmission Oil Type:

Yamaha Motorcycle Gear Oil (or equivalent API GL-4 80W-90)

Transmission Oil Capacity:

1.0 Liter (approx.)

📐 Dimensions

Length:

XJ600S: 2145 mm (84.4 in), XJ600N: 2095 mm (82.5 in)

Width:

XJ600S: 770 mm (30.3 in), XJ600N: 740 mm (29.1 in)

Height:

XJ600S: 1205 mm (47.4 in), XJ600N: 1060 mm (41.7 in)

Wheelbase:

1445 mm (56.9 in)

Dry Weight:

XJ600S: Approx. 183 kg (403 lbs), XJ600N: Approx. 171 kg (377 lbs)

Curb Weight:

XJ600S: Approx. 198 kg (436 lbs), XJ600N: Approx. 186 kg (410 lbs)

🛡️ Safety Features

Safety Features Overview:

Standard motorcycle safety features for the era

Brakes:

Front: Dual 298 mm discs with dual-piston calipers. Rear: 245 mm disc with dual-piston caliper.

Suspension Frontend:

Telescopic forks, 41mm stanchion diameter, 130mm travel

Suspension Rear:

Monoshock, link-type suspension, 130mm wheel travel

Lighting:

Halogen headlight, LED taillight

💡 Technology Features

Infotainment System:

N/A (Basic motorcycle instrumentation: speedometer, tachometer, odometer, trip meter, indicator lights)

Assistance Systems:

N/A (No electronic rider aids like ABS or traction control on standard models of this era)

🔧 Maintenance

Oil Change Interval:

Every 5,000-6,000 km (3,000-3,700 miles) or 6 months

Air Filter Cleaning:

Inspect every 5,000 km (3,000 miles), clean or replace as needed

Spark Plug Replacement:

Every 10,000-12,000 km (6,000-7,500 miles)

Valve Clearance Check:

Every 10,000-12,000 km (6,000-7,500 miles)

Brake Fluid Type:

DOT 4

Coolant Type:

Ethylene glycol-based antifreeze coolant, 50/50 mix with distilled water

Common Wear Items:

Rear shock absorber (aging seals, damping loss), swingarm bearings, fork seals, carburetor synchronization drift.

Electrical Gremlins:

While generally reliable, older wiring can develop corrosion or loose connections, particularly in lighting and ignition circuits. The manual will detail common diagnostic steps.

Carburetor Maintenance:

Regular cleaning and synchronization are crucial for optimal performance and fuel economy due to the CV carburetor setup.

Chain Maintenance:

Proper lubrication and tension adjustment are essential for chain and sprocket longevity.

📚 Vehicle History

Manufacturer History:

Yamaha Motor Company, a leading Japanese manufacturer of motorcycles, marine products, and other motorized products, known for innovation and performance.

Xj600 Lineage:

The XJ600, in its various forms (Diversion, Seca II, Maxim XJ600), has been a popular middleweight platform for Yamaha since the mid-1980s, evolving to meet changing market demands and emissions regulations.

Manufacturing Location:

Japan (typically)

Production Period:

The XJ600 platform was in production for many years, with the 4BR chassis representing a significant iteration for the late 90s.

🏆 Awards & Recognition

Model Awards:

While specific awards for the 1998 model year are not readily publicized, the XJ600 platform has consistently been recognized for its reliability, affordability, and user-friendliness within the middleweight motorcycle segment.