Segment:
High-performance mountain/crossover snowmobiles, designed for deep snow and challenging terrain.
Competitors 1997:
Polaris Indy series, Ski-Doo Summit series, Arctic Cat Mountain Cat.
Engine Options:
Choice of reliable and powerful 600cc and 700cc two-stroke twin-cylinder engines.
Suspension Design:
Likely featured Yamaha's ProAction suspension system, known for its adjustability and capability in varied snow conditions.
Handling:
Designed for agility and control in off-trail and mountain environments.
Primary Coverage:
Complete service, repair, maintenance, and overhaul procedures for the 1997 Yamaha Mountain Max 600 and 700 snowmobiles.
Estimated Pages:
Detailed page count not explicitly provided, but typical comprehensive service manuals of this era are 500-1000+ pages.
Type:
Service Repair Maintenance Overhaul Workshop Manual
Engine Mechanical:
Top-end rebuild (pistons, rings, cylinder heads), bottom-end rebuild (crankshaft, connecting rods, bearings), valve timing, lubrication system, cooling system, fuel system (carburetors, fuel pump, lines).
Engine Electrical:
Ignition system (CDI, stator, coils, spark plugs), starting system (starter motor, solenoid, battery), charging system, wiring diagrams, sensor testing.
Drivetrain:
Drive clutch (primary), driven clutch (secondary), chaincase, drive belt, track system, suspension (front and rear), skis, steering system.
Chassis And Body:
Frame inspection and repair, body panels, seat, handlebars, controls, lighting (headlight, taillight, brake light), electrical harness routing.
Suspension And Steering:
Front and rear suspension component inspection, lubrication, and replacement. Steering linkage, tie rods, and ski alignment.
Preventive Maintenance:
Lubrication points and intervals, belt inspection, clutch alignment checks, track tension adjustment, general inspection procedures.
Troubleshooting:
Diagnostic charts for common problems, symptom-based troubleshooting, electrical system diagnostics, engine performance issues.
Repair And Rebuild:
Detailed step-by-step instructions for component disassembly, cleaning, inspection, repair, and reassembly.
Tune Up:
Spark plug replacement, air filter cleaning/replacement, carburetor adjustments, clutch service.
Special Tools:
Identification and usage of specific Yamaha or aftermarket tools required for certain procedures.
Level:
Comprehensive, covering everything from basic adjustments to complete engine and drivetrain overhauls.
Diagnostics:
Detailed electrical schematics, component testing procedures, and troubleshooting flowcharts.
Specifications:
Torque values, clearances, tolerances, fluid capacities, and electrical specifications are provided for all major components.
Type:
Two-stroke, liquid-cooled, reed valve induction, twin-cylinder
Bore X Stroke 600:
Approximately 73mm x 72mm (specific figures may vary, check manual for exact)
Bore X Stroke 700:
Approximately 82mm x 66.2mm (specific figures may vary, check manual for exact)
Displacement 600:
597cc (approximate)
Displacement 700:
698cc (approximate)
Horsepower 600:
Estimated 105-115 HP (peak output)
Horsepower 700:
Estimated 115-125 HP (peak output)
Carburetors:
Dual Mikuni VM34 or similar carburetors
Fuel Type:
Unleaded gasoline (87 octane or higher recommended)
Oil Injection:
Yamaha Autolube Oil Injection System
Length:
Not explicitly stated, but typically around 115-125 inches for this class of snowmobile.
Width:
Not explicitly stated, typically around 40-46 inches.
Height:
Not explicitly stated, typically around 45-50 inches.
Storage:
Likely a small under-seat storage compartment and possibly rear rack mounting points.
Dry Weight:
Estimated 475-500 lbs (dry weight, without fuel and fluids).
Crash Testing:
Snowmobiles of this era were not typically subjected to formal crash testing like automobiles.
Braking System:
Hydraulic disc brake, typically on the drive shaft.
Lighting:
Headlight, taillight, brake light.
Kill Switch:
Engine kill switch located on the handlebar, often with a safety tether.
Handguards:
Standard handguards to protect hands from wind and debris.
Oil Change:
Premix oil injection system, no traditional oil change for engine oil; focus on maintaining oil reservoir level. Crankcase lubrication from fuel/oil mix.
Spark Plugs:
Inspect/replace every 1,000-2,000 miles or annually. Consult manual for specific plug type and gap.
Clutch Service:
Inspect primary and secondary clutches for wear, belt condition, and alignment every 1,000-1,500 miles. Service or replace as needed.
Track Tension:
Check and adjust track tension regularly, typically every 500 miles or as per manual recommendations.
Coolant:
Ethylene glycol-based antifreeze mixture (typically 50/50) suitable for extreme cold temperatures.
Chaincase Oil:
Yamaha recommended chaincase oil or equivalent API GL-4 gear oil. Capacity approximately 150cc (check manual for exact).
Brake Fluid:
DOT 3 or DOT 4 brake fluid (check manual for specific type).
2-Stroke Oil:
Yamaha Premium Performance 2M or equivalent JASO FD/FC certified synthetic blend 2-stroke oil.
Clutch Wear:
Like many CVT systems of the era, clutch wear and belt longevity can be an issue if not properly maintained or if subjected to excessive abuse.
Carburetor Fouling:
Carburetors can become fouled with debris or varnish if the fuel system is not kept clean or if the snowmobile sits for extended periods without fuel stabilizer.
Suspension Bushings:
Wear on suspension bushings and bearings is common with age and mileage, leading to looseness and poor handling.
Yamaha Legacy:
Yamaha has a long and storied history in snowmobile manufacturing, known for innovative engineering and reliable engines.
Mountain Max Lineage:
The Mountain Max series was Yamaha's flagship offering for deep snow enthusiasts, evolving from earlier performance sleds to meet the demands of mountain riding.
Manufacturing Era:
The mid-to-late 1990s was a period of significant development in snowmobile technology, with Yamaha consistently introducing competitive models.
Industry Awards:
Specific awards for the 1997 Mountain Max are not readily available, but Yamaha snowmobiles of this period were generally well-regarded for performance and reliability.
Performance Reviews:
Contemporary reviews often highlighted the Mountain Max's strong power delivery, comfortable rider position, and capable suspension for mountain riding.
Emissions:
Emissions standards for snowmobiles of this era were less stringent than today's.
