Positioning:
Essential resource for owners and technicians of the 1981 Kawasaki Invader/Intruder 440 snowmobiles, focusing on OEM factory specifications.
Target Audience:
Snowmobile owners, mechanics, collectors, and enthusiasts looking for authoritative repair information.
Competitors:
Direct competitor to other OEM factory service manuals for similar vintage snowmobiles.
Features:
Instant download, lifetime protection policy, covers a wide range of repair and maintenance topics.
Engine:
Includes Engine Removal and Installation, Engine Specifications, Lubrication and Cooling System, Fuel System, Intake & Exhaust
Transmission Drive Train:
Includes Transmission, Drive Chain & Sprockets
Electrical System:
Full coverage of the electrical system
Chassis Suspension Steering:
Includes Steering System, Shocks, Body Work
General Information:
Covers general specifications, safety precautions, and vehicle identification.
Body Work:
Details for body panel removal, installation, and repair.
Suspension:
Covers front and rear suspension systems, including shock absorber servicing.
Routine Maintenance:
Detailed procedures for routine maintenance
Repair Procedures:
Comprehensive repair procedures for all covered systems
Troubleshooting:
Includes Advanced Troubleshooting guides
Engine Rebuild:
Implied within 'Engine Removal and Installation' and 'Engine Specifications' for comprehensive repair.
Depth:
OEM level detail suitable for professional technicians and experienced DIY enthusiasts
Diagnostic Charts:
Likely includes diagnostic charts or flowcharts for troubleshooting common problems.
Engine Type:
Two-stroke, air-cooled twin-cylinder (specific displacement for 440 models implied)
Bore Stroke:
Not specified, but would be detailed in the manual.
Compression Ratio:
Not specified, but would be detailed in the manual.
Horsepower:
Not explicitly stated in product info, but typically in the 35-45 HP range for 440cc class of this era.
Torque:
Not explicitly stated in product info.
Carburetion:
Dual Mikuni carburetors (likely, common for Kawasaki of this era)
Fuel Type:
Gasoline/Oil Mixture (pre-mix or oil injection, typical for two-stroke)
Track Width:
Typically 15-inch track width for this class.
Skid Length:
Not specified, but would be covered in the manual.
Overall Length:
Not specified, but typical for the era would be around 90-100 inches.
Dry Weight:
Approximately 400-450 lbs (typical for this era and class).
Dashboard Features:
Basic instrumentation: speedometer, tachometer, engine temperature warning light, oil indicator (if oil injected).
Braking System:
Hydraulic disc brake (typically rear track brake).
Diagnostic Ports:
N/A (No electronic diagnostic ports in this era).
Spark Plug Maintenance:
Covered in manual (typical: check/gap every 500 miles, replace every 2,500-5,000 miles).
Drive Belt Inspection:
Covered in manual (inspect for wear, cracking, glazing regularly, replace as needed).
Carburetor Cleaning:
Covered in manual (recommend periodic cleaning, especially before storage).
Track Tension:
Covered in manual (regular adjustment required for optimal performance and track life).
2 Stroke Oil:
Manual will specify recommended 2-stroke oil type and ratio for fuel mixing or injection system.
Chain Case Oil:
Manual will specify recommended gear oil (e.g., SAE 80W-90) and capacity for the chain case.
Shock ABSorber Oil:
Manual may specify shock fluid type if user-serviceable.
Common Wear Items:
Manual would likely address wear on drive clutches, driven pulleys, suspension bushings, and track components.
Carburetor Tuning:
Manual will provide guidance on proper carburetor jetting and tuning for optimal performance and to prevent engine damage.
Kawasaki Heritage:
Kawasaki has a long history in motorsports, including snowmobiles, building on their reputation for reliable and performance-oriented engines.
Invader Intruder Evolution:
The Invader and Intruder models were part of Kawasaki's aggressive push into the snowmobile market in the late 1970s and early 1980s, known for their performance and often sporty design.
Invader Intruder Market Impact:
These models were part of Kawasaki's strategy to compete with established players like Ski-Doo and Yamaha.
