Market Segment:
Dual-sport / Enduro motorcycle.
Competitors:
Honda XR500R, Suzuki DR500/600, Kawasaki KLR600.
Vehicle Strengths:
Robust air-cooled engine, capable off-road suspension, reliable for adventure touring and trail riding.
Benefits For Owner:
Enables DIY maintenance, repairs, and a deeper understanding of the motorcycle's mechanics, saving on professional service costs.
Engine Mechanical:
Full overhaul, including disassembly, inspection, repair, and reassembly of all internal components (pistons, rings, valves, camshaft, crankshaft).
Fuel System:
Carburetor tuning, cleaning, and rebuilding (likely Mikuni VM series). Fuel tank, petcock, and fuel line maintenance.
Ignition System:
CDI ignition system, spark plug selection, timing checks, and troubleshooting ignition coil issues.
Transmission:
Gearbox disassembly, inspection, gear replacement, clutch service (wet multi-plate), and transmission fluid specifications.
Suspension Front:
Fork seal replacement, oil level and type, damping adjustments, and general fork maintenance.
Brakes Front:
Hydraulic disc brake system, caliper overhaul, pad replacement, master cylinder service, fluid bleeding, and brake line maintenance.
Electrical System:
Wiring diagrams, lighting system, battery maintenance, charging system (stator, rectifier/regulator), starter motor, and troubleshooting electrical faults.
Frame And Bodywork:
Frame inspection, swingarm maintenance, handlebar replacement, seat, fenders, and fuel tank removal/installation.
Rear Suspension:
Monoshock (Monocross) system, linkage lubrication, shock absorber service, spring preload adjustment, and damping adjustments.
Rear Brakes:
Drum brake system, adjustment, shoe replacement, and drum inspection.
Routine Maintenance:
Oil changes, filter replacements, chain adjustment, tire pressure checks, and general bolt tightening.
Troubleshooting:
Systematic diagnostic procedures for common issues related to starting, running, braking, and electrical problems.
Rebuilds:
Detailed instructions for complete engine, transmission, and suspension unit rebuilds.
Component Replacement:
Step-by-step guides for replacing major components such as pistons, clutch plates, brake pads, and fork seals.
Depth Of Coverage:
Comprehensive (from basic adjustments to full engine rebuilds).
Engine Type:
Single-cylinder, 4-stroke, air-cooled, SOHC
Displacement:
595 cc (36.3 cu in)
Bore X Stroke:
95.0 mm x 81.4 mm (3.74 in x 3.20 in)
Horsepower Est:
Approx. 36-40 HP @ 6,500 RPM (estimate)
Torque Est:
Approx. 32-35 lb-ft @ 5,000 RPM (estimate)
Carburetor Type:
Single Mikuni VM Series (likely VM34 or VM36)
Fuel Capacity:
Approximately 10 Liters (2.6 US gallons)
Engine Oil Change:
Every 2,000-3,000 km or 6 months (recommendation based on era).
Air Filter Cleaning:
Every 1,000-2,000 km or as needed based on riding conditions.
Chain Lubrication Adjustment:
Every 500-1,000 km or as needed.
Valve Clearance Check:
Every 4,000-6,000 km (critical for performance and engine longevity).
Engine Oil Type:
API SE, SF or SG classification, SAE 20W-40 or 10W-40 motorcycle oil.
Engine Oil Capacity:
Approximately 2.0 - 2.3 Liters (with filter change) (estimate, refer to manual for exact spec).
Fork Oil Type:
Yamalube Fork Oil 10W or equivalent (likely SAE 10W).
Fork Oil Quantity:
Approx. 400-450 ml per leg (estimate, refer to manual for exact spec).
Brake Fluid Type:
DOT 3 or DOT 4 hydraulic brake fluid.
Transmission Oil Type:
API GL-4 or GL-5 gear oil, SAE 80W-90 (for gearbox and final drive if applicable - likely gearbox only in this model).
Common Wear Items:
Clutch plates, brake pads/shoes, fork seals, countershaft seal leaks, kickstarter mechanism wear, and carburetor jetting issues if not maintained.
Electrical Component Reliability:
Aging electrical components (rectifier/regulator, stator) can sometimes be a failure point in older motorcycles of this era.
Maintenance Schedule Emphasis
Manual Focus:
The manual would heavily emphasize regular lubrication of suspension linkages and swingarm bearings, crucial for off-road performance.
Yamaha Motorsports:
Yamaha has a long and storied history in motorsports, including extensive experience in off-road racing, which heavily influenced the design and engineering of the TT series.
Tt Series Lineage:
The TT600 is part of Yamaha's highly successful TT series, known for its off-road prowess and dual-sport capabilities. It evolved from earlier TT models and paved the way for later XT and Ténéré models.
Production Period:
The TT600 model was produced for several years, with the 1983-1984 models representing an early iteration of this popular platform.
