Target Audience:
1980 Polaris Apollo snowmobile owners and technicians seeking to perform maintenance, repairs, and diagnostics.
Value Proposition:
Provides factory-level technical information enabling owners to maintain and repair their vintage snowmobile effectively, saving on labor costs and ensuring proper upkeep.
Features:
Comprehensive coverage, detailed illustrations, step-by-step instructions, troubleshooting guidance, searchable PDF format, factory-level accuracy.
Systems Covered:
Engine, fuel system, ignition system, cooling system, exhaust system, drivetrain, suspension, steering, braking system, electrical system, body, skis, track, controls, and general maintenance.
Estimated Pages:
Hundreds (exact count not specified, but implied to be comprehensive)
Type:
Factory Service & Shop Repair Manual
Format:
PDF (via download link)
Engine Mechanical:
Engine assembly, disassembly, piston, rings, cylinder, crankshaft, connecting rods, valve train (if applicable), seals, gaskets, and timing.
Fuel System:
Carburetor(s) (cleaning, adjustment, overhaul), fuel lines, fuel pump (if applicable), fuel tank.
Ignition System:
Ignition coil, points and condenser (if applicable), spark plugs, wiring, troubleshooting.
Cooling System:
Air cooling system maintenance and component checks (if air-cooled).
Exhaust System:
Exhaust pipe, muffler, heat shields, and gasket replacement.
Drivetrain And Transmission:
Clutch system (drive and driven clutches), belt inspection and replacement, chaincase (lubrication, chain adjustment, sprocket wear), gear selection (if applicable).
Suspension And Steering:
Front suspension (shocks, springs, control arms, bushings), rear suspension (bogies, idler wheels, track tension adjustment), steering column, tie rods, spindles, and ski alignment.
Braking System:
Brake mechanism, brake band/pads, brake lever, cable adjustment, and troubleshooting.
Electrical System:
Headlight, taillight, brake light, ignition switch, wiring diagrams, fuse replacement (if applicable), kill switch, and basic electrical troubleshooting.
Bodywork And Chassis:
Body panel removal and installation, seat, handlebars, controls, and general chassis inspection.
Skis And Track:
Ski wear and replacement, track inspection for damage, track tension adjustment, and idler wheel maintenance.
Maintenance:
Regular servicing, lubrication points, cleaning procedures, pre-ride inspections, post-ride checks, storage procedures.
Troubleshooting:
Diagnostic procedures for common issues such as starting problems, loss of power, unusual noises, and system failures.
Repair:
Detailed step-by-step instructions for component disassembly, overhaul, reassembly, and replacement for all major systems.
Installation:
Guidance on installing new or replacement parts, ensuring correct fitment and function.
Adjustment:
Procedures for adjusting carburetor settings, clutch engagement, throttle cable, brake cable, and track tension.
Depth:
Comprehensive (covers everything from basic fluid changes to complete engine rebuilds, with detailed diagrams and specifications).
Engine Type:
Two-stroke, piston-port, fan-cooled (typical for this era, specific engine variants not detailed in product info).
Engine Displacement Cc:
Varies by specific Apollo model/engine option (e.g., 244cc, 340cc, 440cc common for this era, exact for Apollo not specified).
Bore X Stroke Mm:
Specific dimensions not provided in product info, but would be detailed in the manual.
Compression Ratio:
Specific ratios not provided in product info, but would be detailed in the manual.
Horsepower Hp:
Varies by engine displacement, typically in the range of 20-40 HP for this era and size of snowmobile. Exact figures not specified.
Torque Ft-Lbs:
Specific torque figures not provided in product info, but would be detailed in the manual.
Carburetor Type:
Typically Tillotson or Mikuni butterfly or slide carburetor. Specific model numbers would be in the manual.
Fuel Type:
Leaded or unleaded gasoline mixed with 2-stroke oil (pre-mix). Specific oil ratio (e.g., 40:1, 50:1) would be in the manual.
Fuel Delivery:
Gravity feed from fuel tank to carburetor, possibly with a fuel pump depending on specific configuration.
Transmission Type:
CVT (Continuously Variable Transmission) utilizing a drive clutch and driven clutch with a V-belt.
Optional Transmission:
N/A (CVT was standard for this type of snowmobile).
Clutch Engagement Rpm:
Specific engagement RPM would be detailed in the manual, typically around 2000-2500 RPM for this era.
Clutch Calibration:
Manual provides information on drive and driven clutch calibration for optimal performance, including roller weights, spring tensions, and helix angles.
Lubrication:
Chaincase lubrication is essential; manual will specify lubricant type and change intervals.
Length In:
Specific dimensions not provided in product info, but typical for a 1980s trail sled.
Width In:
Specific dimensions not provided in product info, but typical for a 1980s trail sled.
Height In:
Specific dimensions not provided in product info, but typical for a 1980s trail sled.
Dry Weight Lbs:
Specific dry weight not provided in product info, but typically in the 350-450 lbs range for this era. Manual would contain exact figures.
Track Width In:
Typically 15 inches for this era of snowmobile.
Track Length In:
Typically 102-116 inches for this era of snowmobile. Manual would specify exact length.
Oil Change Engine:
For 2-stroke engines, oil is mixed with fuel; no separate oil change. Check for proper fuel/oil ratio as per manual.
Chaincase Oil Change:
Typically every 50-100 hours of operation or annually. Manual will specify exact interval and lubricant type.
Clutch Inspection:
Regular inspection of drive and driven clutches for belt wear, sheave condition, and roller/weight condition before each season or after heavy use.
Spark Plug Replacement:
Typically every 50-100 hours of operation or annually, or as needed based on condition. Manual will specify recommended plug type and gap.
Track Tension Adjustment:
Check and adjust track tension regularly, especially after initial break-in or in varying snow conditions. Manual will detail the procedure.
Engine Oil Type:
2-stroke synthetic or semi-synthetic oil specifically designed for air-cooled snowmobile engines. Manual will specify brand recommendations and mix ratio.
Chaincase Oil Type:
Typically a high-quality gear oil, SAE 80W-90 or similar. Manual will specify exact viscosity and specifications.
Grease Type:
General purpose lithium-based grease for lubrication points like suspension pivots and steering components. Manual will specify specific points and grease type.
Common Problems:
Carburetor fouling/clogging, clutch belt wear, ignition system issues (points/condenser), recoil starter problems, track tension adjustments, and general wear and tear on vintage components.
Cooling System Maintenance:
Ensuring cooling fins are clear of debris for proper air cooling.
Brand History:
Polaris is a long-standing American manufacturer known for its snowmobiles, ATVs, and motorcycles, with a history dating back to the 1950s.
Apollo Lineage:
The Apollo was a popular line of trail-oriented snowmobiles for Polaris in the late 1970s and early 1980s, known for their reliability and performance for the time.
Competitors Era:
Competed with models from Ski-Doo (e.g., Blizzard), Arctic Cat (e.g., El Tigre), and Yamaha during the peak of the snowmobile boom.
Manufacturing Location:
Polaris snowmobiles were historically manufactured in Roseau, Minnesota, USA.
