Manual Type:
Workshop Service Repair Manual
Applicable Years:
1985, 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007
Engine Systems:
Engine disassembly, assembly, tuning, troubleshooting, fuel system (carburetor specifications, jetting), ignition system, cooling system (if applicable), lubrication system.
Transmission Drivetrain:
Clutch operation, gearbox disassembly and assembly, final drive (shaft drive maintenance, inspection).
Chassis Suspension:
Front fork disassembly, assembly, oil changes, rear shock absorber adjustment and replacement, frame inspection, wheel bearing maintenance.
Brakes Steering:
Brake system overhaul (master cylinder, calipers, lines), bleeding procedures, brake pad replacement, steering head bearing service.
Electrical System:
Wiring diagrams, starter system, charging system (alternator, regulator/rectifier), lighting, ignition switch, battery maintenance.
Bodywork Trim:
Fairing removal and installation, fuel tank, seat, fenders, and other body panel procedures.
Fuel System Details:
In-depth coverage of carburetor component identification, cleaning, adjustment, and troubleshooting, including jet sizes and needle settings.
Maintenance:
Routine checks, oil changes, filter replacements, spark plug replacement, chain/shaft drive lubrication and adjustment, brake fluid replacement, coolant checks (if applicable).
Troubleshooting:
Diagnostic procedures for common problems, error code interpretation (if applicable), symptom-based fault finding.
Repair Overhaul:
Detailed step-by-step instructions for component disassembly, repair, and reassembly of major mechanical and electrical systems.
Specifications:
Torque values for critical fasteners, clearance specifications, fluid capacities, electrical specifications (resistance, voltage).
Wiring Diagrams:
Detailed electrical schematic diagrams for comprehensive electrical system diagnosis and repair.
Engine Rebuild:
Complete engine overhaul procedures, including piston, ring, and valve servicing, crankshaft and connecting rod inspection, and cylinder head work.
Depth Level:
Comprehensive professional-level repair and maintenance, suitable for experienced mechanics and dedicated enthusiasts. Covers detailed internal component procedures.
Diagnostic Capabilities:
Extensive diagnostic trees and symptom-based troubleshooting guides for identifying and resolving mechanical and electrical faults.
Engine Type:
Liquid-cooled, 4-stroke, DOHC, 16-valve, V-Four
Displacement:
1198 cc (73.1 cu in)
Bore X Stroke:
76.0 mm x 66.0 mm (approx.)
Compression Ratio:
10.5:1 (approx.)
Horsepower:
Approx. 145 hp @ 9,000 rpm (varies by year and tuning)
Torque:
Approx. 117 Nm (86.3 lb-ft) @ 7,500 rpm (varies by year)
Fuel Delivery:
Four 35mm Mikuni constant-velocity carburetors (VMX1200). Later models may have fuel injection.
Fuel Type:
Unleaded gasoline
Ignition System:
Electronic ignition (TCI/CDI)
Instrumentation:
Analog tachometer, speedometer, fuel gauge, odometer, trip meter, indicator lights.
ABS:
Not typically available on earlier models; some later variants may have had ABS as an option or standard.
Electronic Aids:
Primarily mechanical systems, with basic electronic ignition and charging.
Oil Change Interval:
Every 3,000 - 5,000 km (1,800 - 3,000 miles) or annually.
Spark Plug Replacement:
Every 10,000 - 15,000 km (6,000 - 9,000 miles).
Valve Clearance Check:
Every 20,000 - 30,000 km (12,000 - 18,000 miles).
Engine Oil Type:
Yamalube 4 (or equivalent) SAE 20W-40, API SG or higher (check specific manual for exact viscosity and API rating).
Engine Oil Capacity:
Approx. 3.4 liters (3.6 US qt) with filter change.
Fork Oil Type:
Yamaha Fork Oil (or equivalent) SAE 10W (check specific manual for viscosity and quantity).
Common Wear Items:
Clutch wear, charging system components (regulator/rectifier), fork seals, steering head bearings, carburetors requiring periodic cleaning/rebuilding.
Charging System Reliability:
The regulator/rectifier can be a failure point on some older models, leading to battery charging issues.
Carburetor Performance:
Carburetors can become clogged or misadjusted over time, affecting fuel delivery and engine performance. Synchronization is crucial.