Market Position:
The 2008 Yamaha RS Vector series represents Yamaha's premium, long-track touring and mountain snowmobiles, known for their comfortable ride, powerful engines, and versatile performance.
Competitive Analysis:
Competed against models from Ski-Doo (e.g., GSX, Summit), Arctic Cat (e.g., T660, M series), and Polaris (e.g., Fusion, RMK) in the performance touring and crossover segments.
Key Features:
Genesis 120FE 3-cylinder, 4-stroke engine; Mono-Shock rear suspension; independent front suspension; lightweight chassis; electric start; reverse gear; comfortable seating and storage.
Systems Covered:
Engine mechanical, fuel system, ignition system, lubrication system, cooling system, exhaust system, electrical system, chassis, suspension, steering, braking system, track and drive system, bodywork, accessories, troubleshooting, diagnostic procedures, maintenance schedules, torque specifications, wiring diagrams.
Estimated Page Count:
500+
Manual Type:
Comprehensive Workshop Service Manual
Engine Mechanical:
Complete engine disassembly, inspection, assembly, valve adjustments, piston and ring replacement, cylinder head service, crankshaft and connecting rod inspection.
Fuel System:
Carburetor(s) adjustment and overhaul, fuel pump service, fuel line inspection and replacement, fuel filter maintenance.
Ignition System:
CDI unit inspection, spark plug specifications, ignition coil testing, timing procedures.
Lubrication System:
Oil pump service, oil filter replacement, lubrication points, oil specifications.
Cooling System:
Radiator inspection and cleaning, coolant specifications, thermostat service, water pump repair.
Electrical System:
Wiring diagrams, starter system, charging system, lighting system, accessory wiring, battery maintenance, troubleshooting electrical faults.
Chassis:
Frame inspection, body panel removal and installation, seat service, handlebar components.
Suspension:
Front and rear suspension inspection, shock absorber service, ski alignment, bogie wheel maintenance.
Steering:
Steering column service, tie rod ends, spindle inspection, steering linkage adjustments.
Braking System:
Brake caliper service, brake disc inspection and replacement, brake fluid specifications, brake lever and pedal adjustment.
Track And Drive System:
Track tension adjustment, drive clutch and driven clutch service, belt inspection and replacement, chain case lubrication.
Maintenance:
Routine maintenance, pre-ride inspections, seasonal maintenance, oil changes, filter replacements, lubrication.
Troubleshooting:
Systematic diagnostic procedures for common and uncommon issues, symptom-based troubleshooting guides.
Repair:
Detailed step-by-step repair instructions for all major components and systems, including complete engine and transmission overhauls.
Installation:
Instructions for installing optional accessories and genuine Yamaha parts.
Technical Depth:
Comprehensive coverage from basic rider maintenance to complete engine rebuilds and advanced electrical diagnostics.
Engine Type:
Four-stroke, 3-cylinder, liquid-cooled, DOHC
Engine Displacement:
1049cc (1049 cm³)
Bore X Stroke:
82.0 mm x 66.2 mm
Horsepower:
Approx. 120-130 hp (varies slightly by tuning and model variant)
Torque:
Estimated 80-85 lb-ft (estimated, not officially published in many specs)
Fuel Induction:
Mikuni BNS37 (Triple Carburetor) or Fuel Injection (depending on specific variant and market, though 2008 Vector typically used carburetors for this engine).
Recommended Fuel:
87 Octane Unleaded Gasoline
Oil Type:
Yamaha Marine Engine Oil (or equivalent 4-stroke snowmobile oil meeting API SG, SJ, SL, or SM classification, SAE 10W-40 recommended)
Oil Capacity:
Approx. 4.0 Liters (4.2 US qt) with filter change
Overall Length:
Approx. 118-126 inches (300-320 cm) depending on track length (LTX models typically longer)
Overall Width:
Approx. 47.2 inches (120 cm)
Dry Weight:
Approx. 550-600 lbs (250-272 kg) depending on trim level
Cargo Capacity:
Integrated under-seat storage, optional rack systems
Safety Ratings:
Not applicable for snowmobiles in the same way as passenger vehicles; designed to meet relevant snowmobile safety standards.
Active Features:
Hydraulic disc brakes, comfortable and stable rider ergonomics, good visibility headlights.
Passive Features:
Handlebar guards, comfortable seating position, sturdy frame construction.
Infotainment System:
Basic digital display showing speed, RPM, fuel level, odometer, trip meter, and warning lights. No advanced infotainment features.
Driver Assistance:
No electronic driver assistance features like ABS or traction control; relies on mechanical systems and rider skill.
Connectivity:
No connectivity features.
Initial Service:
10-hour or 100-mile break-in service (oil change, chain case check, clutch inspection).
Regular Maintenance:
Engine oil and filter change: every 100 hours or 1000 miles. Chain case oil change: annually or every 2000 miles. Spark plugs: inspect annually, replace as needed. Track tension adjustment: as required. Clutch inspection: annually.
Coolant:
Yamaha's recommended coolant or equivalent permanent type antifreeze (50/50 mix with distilled water) for -34°C (-30°F) protection. Typically a phosphate-based formula is recommended for Yamaha engines.
Chain Case Oil:
Yamalube Gear Oil GL-4 75W-90 (or equivalent SAE 80W-90 GL-4 gear oil).
Known Issues:
While generally reliable, common issues can include clutch wear (especially if used aggressively), occasional carburetor synchronization needs, and potential for water pump seal leaks over high mileage. The 4-stroke engine is known for its durability and smoother operation compared to older 2-strokes.
Brand Heritage:
Yamaha has a long-standing reputation for engineering excellence, reliability, and innovation in the powersports industry, including snowmobiles since the 1960s.
Model Evolution:
The RS Vector line evolved from earlier Vector models, incorporating Yamaha's advanced 4-stroke engine technology (Genesis series) for improved performance, fuel efficiency, and reduced emissions compared to 2-stroke predecessors.
Production Years:
The RS Vector platform was a key offering from Yamaha for many years, with continuous updates and refinements through the 2000s.
