Segment Positioning:
High-performance trail and mountain snowmobile, known for its powerful 700cc engine and agile handling.
Key Competitors:
Arctic Cat F7, Ski-Doo MXZ 700, Polaris Edge/RMK 700.
Model Highlights:
Powerful 700cc Genesis twin-cylinder engine, ProAction Plus suspension, YVXC clutch system, rider-forward ergonomics for better control.
Systems Covered:
Engine (including rebuilds), Fuel System, Ignition System, Clutch System (Drive & Driven), Transmission/Drive Train, Suspension (Front & Rear), Steering, Brakes, Electrical System (Lighting, Gauges, Wiring Harness), Chassis, Bodywork, Lubrication, Cooling System, Specifications, Troubleshooting, Special Tools
Estimated Page Count:
300-400 pages (typical for this era and complexity)
Manual Type:
Factory Service Manual
Engine Systems:
Detailed disassembly, inspection, repair, and assembly of the 700cc liquid-cooled, 2-stroke twin-cylinder engine. Includes cylinder head, cylinders, pistons, connecting rods, crankshaft, crankcase, lubrication system, cooling system, and fuel delivery (carburetors).
Maintenance Procedures:
Routine checks, lubrication, belt inspection/replacement, spark plug maintenance, coolant checks, clutch alignment, track tension adjustment, steering adjustments.
Repair Procedures:
Complete engine rebuilds, clutch service and adjustment, carburetor tuning and rebuilding, suspension component replacement, brake caliper service, steering linkage repair, electrical component troubleshooting and replacement, track and suspension system repairs.
Diagnostic Capabilities:
Comprehensive troubleshooting guides with symptom-based diagnostics, electrical system schematics, and detailed specifications for identifying and resolving mechanical and electrical issues.
Rebuild Depth:
Full engine internal component rebuilds (pistons, rings, bearings, seals), carburetor overhauls, clutch recalibration, and transmission servicing.
Searchable Text:
Likely yes, assuming a high-quality scan or original digital file.
Printability:
High resolution, suitable for printing individual sections or the entire manual.
Binding Recommendation:
For printed version: Coil or comb binding for lay-flat usability in a workshop environment.
Recommended Paper Type:
For printed version: Durable, matte finish paper to reduce glare and withstand workshop conditions.
Engine Type:
Liquid-cooled, 2-stroke, reed valve, parallel-twin
Bore X Stroke:
73 mm x 53.5 mm (typical for this generation of Yamaha 700 twin)
Compression Ratio:
7.0:1 (typical for carbureted 2-stroke snowmobile engines of this era)
Horsepower:
Approx. 130-140 HP (estimated, depending on specific model variant and tuning)
Torque:
Not typically published in detailed figures for this engine type, but known for strong mid-range pull.
Carburetor Type:
Dual Mikuni TM40 flat slide carburetors (common configuration for this model)
Fuel Type:
Unleaded gasoline (minimum 87 octane recommended, 91 octane preferred for optimal performance)
Ignition Type:
Digital CDI with variable timing
Oil Injection:
Yamaha Autolube premix oil injection system
Cooling Type:
Liquid-cooled
Coolant Type:
Yamalube All Weather Coolant or equivalent ethylene glycol based coolant with corrosion inhibitors.
Drive System:
CVT (Continuously Variable Transmission) utilizing the YVXC clutch system.
Drive Clutch:
Yamaha YVXC Drive Clutch
Driven Clutch:
Yamaha YVXC Driven Clutch
Clutch Engagement Rpm:
Refer to manual for specific engagement/shift points, typically around 3000-3500 RPM
Clutch Fluid:
Not applicable for YVXC system, relies on belt friction.
Overall Length:
Refer to specific model trim (SX Viper, SX Viper S, SX Viper ER, Venture 700) as variations exist.
Overall Width:
Refer to specific model trim.
Overall Height:
Refer to specific model trim.
Dry Weight:
Approx. 490-510 lbs (1900-231 kg) depending on model variant (e.g., ER versions may be slightly heavier).
Fuel Capacity:
Approx. 10.6 US gallons (40 liters)
Oil Tank Capacity:
Approx. 3.0 US quarts (2.8 liters)
Crash Test Ratings:
Not applicable to snowmobiles in the same manner as automobiles.
Braking System:
Hydraulic disc brake with vented rotor. Rear brake control typically operated by right hand lever.
Throttle Limiter:
Keyed ignition system with a secondary 'learner' key that limits engine RPM and top speed for new riders (if equipped).
Headlights:
Dual halogen headlights for visibility.
Taillight Brake Light:
LED taillight and brake light for increased visibility.
Instrument Cluster:
Digital/analog combination gauge cluster typically including speedometer, tachometer, engine temperature warning light, oil level warning light, and possibly a trip meter.
Throttle Control:
Standard thumb throttle with adjustable tension.
Diagnostic Ports:
No OBD-II or advanced electronic diagnostic ports typical of modern vehicles. Diagnostics rely on mechanical checks, visual inspection, and troubleshooting based on the manual's procedures.
Oil Change:
Refer to manual for specific interval (typically based on mileage or operating hours). Critical for 2-stroke premix systems to ensure proper lubrication.
Spark Plug Replacement:
Recommended every 1000-2000 miles or annually, depending on usage and plug condition. Refer to manual for specific plug type and gap (e.g., NGK BR9ECS).
Belt Inspection Replacement:
Inspect belt for wear, cracks, and glazing at every service. Replace if any damage is present or at recommended intervals (e.g., 1500-2000 miles).
Clutch Cleaning Inspection:
Recommended annually or every 1000 miles to ensure proper operation and longevity of the YVXC clutches.
Track Tension Adjustment:
Check and adjust track tension as needed, typically every 500 miles or after initial break-in. Refer to manual for specific tension specification.
Engine Oil Type:
Yamalube 2-stroke Synthetic (or equivalent high-quality, TCW-3 certified 2-stroke oil) for the Autolube injection system.
Coolant Type:
Yamalube All Weather Coolant or equivalent ethylene glycol-based antifreeze with corrosion inhibitors. (Typically a 50/50 mix with distilled water).
Brake Fluid Type:
DOT 3 or DOT 4 hydraulic brake fluid.
Chaincase Lubricant:
Yamaha Gear Oil for Chaincase (or equivalent SAE 80W-90 hypoid gear oil).
Common Wear Items:
Drive belt wear, worn clutch rollers/buttons, carburetor jetting issues (especially altitude related), exhaust valve sticking (if equipped), track lugs breaking off on aggressive terrain.
Engine Reliability:
Generally reliable engine, but proper premixing of oil and fuel is critical to prevent premature wear. Overheating due to cooling system issues can lead to significant damage.
Electrical Gremlins:
Corroded electrical connectors, failing stator or regulator/rectifier can cause intermittent electrical issues. Wiring harness integrity is crucial.
Yamaha Motorsports Legacy:
Yamaha has a long and successful history in motorsports, including snowmobiles, motorcycles, and marine engines, known for innovation and performance.
Viper Lineage:
The Viper series, introduced in the late 1990s, represented Yamaha's move towards more powerful, performance-oriented snowmobiles, with the 700cc engine becoming a popular choice.
Venture Model:
The Venture designation typically signifies a more comfort-oriented or touring model, though the 700cc engine in the Venture 700 still offered strong performance.
Manufacturing Location:
Typically manufactured in North America (e.g., Canada) or Japan for Yamaha snowmobiles.
