Market Position:
The 1996 Polaris Indy Ultra RMK was positioned as a high-performance trail and mountain crossover snowmobile, appealing to riders seeking versatility and power.
Competitive Analysis:
Competed with other leading manufacturers' performance-oriented snowmobiles, offering a balance of engine power and advanced suspension for its era.
Key Features:
Designed for both trail riding and mountain terrain, featuring a powerful engine and a suspension system optimized for varied snow conditions.
Engine Service:
Complete engine overhaul, including disassembly, inspection, assembly, and torque specifications.
Fuel System Service:
Carburetor tuning, cleaning, and rebuilding; fuel pump inspection and replacement; fuel line routing and maintenance.
Ignition System Service:
CDI unit testing, spark plug selection and gap, coil testing, and wiring diagram interpretation.
Drivetrain Service:
Clutch adjustment (primary and secondary), belt inspection and replacement, chain case inspection, lubrication, and adjustment.
Suspension Service:
Front and rear suspension component inspection, shock absorber servicing (where applicable), spring replacement, and alignment.
Braking System Service:
Brake caliper inspection, pad replacement, brake fluid type and bleeding procedures, hydraulic system troubleshooting.
Electrical System Service:
Lighting system checks, starter motor operation, battery maintenance, wiring harness troubleshooting, and component testing.
Cooling System Service:
Radiator inspection, coolant type and capacity, fan operation, and leak detection.
Track And Skid Unit Service:
Track tension adjustment, hyfax inspection and replacement, slider rail condition assessment, and tunnel protection.
Chassis And Body:
Body panel removal and installation, chassis inspection, and fastener torque specifications.
Maintenance Procedures:
Regular scheduled maintenance, oil changes, filter replacements, lubrication points, and general tune-ups.
Troubleshooting Guide:
Step-by-step diagnostic procedures for common problems, component testing, and fault identification.
Repair Procedures:
Detailed instructions for component removal, replacement, and reassembly of all major systems.
Transmission Swap:
Guidance on transmission disassembly, component replacement, and reassembly.
Carburetor Rebuild:
Detailed instructions for disassembling, cleaning, and reassembling Mikuni carburetors, including identifying and replacing wear items.
Clutch Calibration:
Guidance on selecting appropriate clutch weights and springs for optimal engine RPM and performance in different riding conditions.
Technical Depth:
Comprehensive, covering everything from basic fluid changes to complete engine rebuilds and complex electrical diagnostics.
Wiring Diagrams:
Includes comprehensive electrical system wiring diagrams for accurate troubleshooting.
Engine Type:
2-stroke, liquid-cooled twin
Engine Displacement:
700cc (approximate, depending on specific variant within the 'Ultra' line)
Horsepower Estimate:
Estimated 110-120 HP (typical for this class and era)
Cooling Method:
Liquid-cooled
Carburetion:
Dual Mikuni carburetors (specific size typically 38mm or 40mm)
Fuel Type:
Premium Unleaded Gasoline (91 octane or higher recommended)
Oil Injection:
Autolube system (premix not typically required)
Clutch Maintenance:
Inspect belt and clutches every 500 miles or annually. Adjust or replace as needed.
Engine Oil Change:
Not applicable for 2-stroke autolube system; regular inspection of oil injection system is required.
Spark Plug Replacement:
Inspect every 500 miles, replace as needed. Typical interval 1000-2000 miles.
Chain Case Lubrication:
Check lubrication level annually or every 1000 miles. Service as per manual.
Coolant Type:
Ethylene Glycol based antifreeze (e.g., SAE 20W or equivalent).
Coolant Capacity:
Refer to manual for specific capacity, typically 2-3 quarts.
Brake Fluid Type:
DOT 3 or DOT 4 hydraulic brake fluid.
Chain Case Oil Type:
Polaris brand specific chaincase oil or equivalent synthetic lubricant.
Chain Case Oil Capacity:
Approximately 10-12 oz (0.3-0.35 L)
Known Issues:
Common issues for this era include clutch wear, possible carburetor jetting issues due to altitude changes, and potential for heat soak in extreme conditions. Track wear is also a consideration.
