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Ski-doo

SKI-DOO ALPINE II 503 1986 Service Manual

SKI-DOO ALPINE II 503 1986 Service Manual

$17.99
$17.99
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Vehicle data plateRef 7357
Brand
Ski-doo
Vehicle
Tractors
Models covered
Agriculture, ALPINE II 503, Commando Series, Same, Ski Doo
Years
1986
Format
PDF, searchable, print-ready
Delivery
Instant download after checkout
Language
English

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🏷️ Basic Information
Identification
Make:
Ski-Doo
Model:
Alpine II
Year:
1986
Engine Identifier:
503
Codes
Vin Code:
Not specified in product information
Generation
Model Generation:
First Generation (as Alpine II)
👋 Introduction
Market Position
Positioning:
A rugged, utility-oriented snowmobile designed for versatility in varied snow conditions, likely positioned for touring, work, and recreational use.
Competitive Analysis
Competitors Era:
Competed against other utility and touring snowmobiles from brands like Arctic Cat, Polaris, and Yamaha during the mid-1980s.
Key Features
Features:
Known for its robust construction, comfortable seating for two (often), and reliable performance in demanding conditions. The 'Alpine' designation suggests an emphasis on snow travel and possibly off-trail capability.
📋 Manual Details
Coverage Areas
Regions Covered:
North America, Europe (implied by brand and product type)
Page Count
Estimated Page Count:
Extensive (implies a comprehensive factory service manual, typically 300-600 pages for snowmobiles of this era)
Manual Type
Type:
Factory Service Manual / Workshop Repair Manual
Completeness:
Complete and intact, covering all models, engines, trim, and transmission types for the specified year.
Language
Language:
English
Format
Format:
PDF Download
📖 Manual Coverage
Systems Covered
Engine Systems:
Engine disassembly, assembly, lubrication, cooling, fuel system (carburetion), ignition system, exhaust system, engine specifications.
Drivetrain Systems:
Drive clutch, driven clutch, chaincase, drive axle, suspension components (front and rear), track system.
Electrical Systems:
Ignition system troubleshooting, lighting system, electrical component testing, wiring diagrams (likely included).
Chassis And Body:
Frame, handlebars, steering system, seat, body panels, storage compartments, skis, bumper system.
Procedures Included
Maintenance Procedures:
Scheduled maintenance, lubrication, cleaning, tune-ups, adjustments.
Troubleshooting Procedures:
Diagnostic charts, symptom-based troubleshooting, component testing.
Repair Procedures:
Step-by-step repair instructions for all major components, including complete disassembly and reassembly.
Diagnostic Procedures:
Includes systematic troubleshooting guides and diagnostic flowcharts for various systems.
Technical Depth
Depth:
Comprehensive (covers from basic maintenance to complete engine and chassis rebuilds, suitable for both DIY and professional mechanics)
Diagram Quality:
High-quality diagrams, exploded views, and illustrations (as stated in product description).
📊 Manual Specifications
File Format
File Format:
PDF
Recommended Viewer:
Adobe PDF Reader (as stated in product description)
Print Quality
Printability:
Printable without restriction
Binding Type
Binding:
N/A (Digital PDF download)
Paper Type
Paper Type:
N/A (Digital PDF download)
⚙️ Engine Specifications
Primary Engine
Engine Type:
Two-stroke, liquid-cooled, twin-cylinder (commonly associated with Rotax engines of this era)
Engine Displacement:
503cc ( Cubic Centimeters)
Cooling System:
Liquid-cooled
Performance
Horsepower Estimate:
Approximately 40-50 HP (typical for 503cc Rotax engines in this period, exact spec requires manual confirmation)
Torque Estimate:
Not specified in product information, but expected to be robust for utility applications.
Fuel System
Fuel Delivery:
Carburetor(s) (likely dual carburetors for a twin-cylinder engine)
Fuel Type:
Unleaded gasoline (typically with a specific octane rating, detailed in the manual)
Ignition System
Ignition Type:
CDI (Capacitor Discharge Ignition)
🔧 Transmission
Standard
Transmission Type:
CVT (Continuously Variable Transmission) with a Primary (Drive) Clutch and Secondary (Driven) Clutch
Optional
Optional Transmissions:
N/A (CVT was standard for this type of snowmobile)
Features
Clutch Engagement Rpm:
Specific engagement RPM range detailed in the manual, critical for optimal performance and belt life.
Gear Reduction:
Chaincase provides gear reduction, specific ratios would be in the manual.
📐 Dimensions
Exterior
Overall Length:
Not specified in product information, but typically around 90-100 inches for snowmobiles of this era.
Overall Width:
Not specified in product information, typically around 35-40 inches.
Weights
Dry Weight:
Estimated 450-550 lbs (dry weight, not including fluids or rider).
Ski Stance:
Not specified in product information, but crucial for handling characteristics.
🛡️ Safety Features
Ratings
Safety Certification:
Standard safety certifications for snowmobiles of the era would apply (e.g., CSA in Canada, relevant US standards).
Active Features
Braking System:
Hydraulic disc brake on the drive shaft (common for this period).
Kill Switch:
Engine stop switch (standard safety feature).
Passive Features
Lighting:
Headlight, taillight, and possibly brake light.
Track Guard:
Likely has a track guard for rider safety.
💡 Technology Features
Infotainment
Infotainment System:
Basic instrumentation cluster (speedometer, tachometer, engine temperature gauge, fuel gauge if equipped). No advanced infotainment systems.
Driver Assistance
Assistance Features:
None beyond standard mechanical safety features.
Connectivity
Connectivity Options:
N/A
🔧 Maintenance
Service Intervals
Oil Change Interval:
Detailed in manual, typically based on operating hours or mileage, and specific to two-stroke pre-mix or oil injection system.
Clutch Inspection:
Regular inspection of drive and driven clutches for belt wear, sheave condition, and roller wear is critical.
Track Tension Adjustment:
Periodic adjustment of track tension to prevent excessive wear or slippage.
Fluid Specifications
Engine Oil Type:
Two-stroke engine oil, specifically for air-cooled or liquid-cooled engines as applicable. Type and grade (e.g., API TC, JASO FD) specified in the manual.
Coolant Type:
Ethylene glycol-based antifreeze/coolant with appropriate corrosion inhibitors for aluminum engine components. Specific mixture ratio (e.g., 50/50) and type detailed in manual.
Chaincase Oil Type:
Specific gear oil or automatic transmission fluid (ATF) type as recommended by Ski-Doo for the chaincase lubrication. Weight and capacity specified.
Known Issues
Common Wear Items:
Drive belt wear, clutch roller wear, track lugs, skis, shock absorbers, recoil starter components.
Potential Engine Issues:
Carburetor tuning issues, ignition coil failure, crank seal leaks, and overcooling or overheating due to improper thermostat operation or coolant levels.
Clutch Maintenance:
Regular cleaning and lubrication of clutch components are vital for smooth operation and longevity.
📚 Vehicle History
Brand Heritage
Brand History:
Ski-Doo, a division of Bombardier Recreational Products (BRP), has a long and storied history in snowmobile manufacturing, dating back to the early 1960s. They are pioneers in the industry.
Model Evolution
Alpine Lineage:
The Alpine model line has historically been associated with robust, multi-passenger, and utility-focused snowmobiles, often featuring longer tracks and a more upright riding position compared to sport models.
Design Philosophy:
Emphasized durability, rider comfort, and capability for multi-purpose use, including touring and moderate utility work.
Production
Manufacturing Era:
Mid-1980s (1986 model year)
Manufacturing Location:
Primarily Canada (Bombardier's manufacturing facilities)
🏆 Awards & Recognition
Recognitions
Industry Awards:
Not specified in product information, but Ski-Doo models of this era were generally well-regarded for their utility and reliability in demanding environments.
Ratings
Consumer Ratings Era:
Consumer feedback from the mid-1980s would have likely praised its comfort and utility for longer rides and carrying capacity.

Delivery & file format

This is a digital PDF download, not a printed book. After payment the download link appears on your order confirmation page and is emailed to the address you entered. Files open in any PDF reader on phone, tablet or computer and can be printed.

Check the model year and engine before you buy

Manufacturers change procedures, wiring and part numbers between model years and engine options. If your VIN plate shows a year or engine code that is not listed on the data plate above, contact us with the model, year and VIN and we will confirm coverage before you order.

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