Target Audience:
Owners of the 1998 Polaris Indy Ultra RMK seeking detailed repair and maintenance information for DIY or professional use.
Advantage:
Provides factory-level technical data, often surpassing generic aftermarket guides in detail and accuracy.
Quality Guarantee:
Guaranteed great quality service manual with customer satisfaction follow-up.
Learning Style:
Step-by-step guidance, teaching factory-trained technician knowledge.
General Coverage:
All nuts and bolts on the sled, including maintenance, troubleshooting, and repair.
Estimated Pages:
Hundreds of pages (specific count not provided, but described as extensive).
Type:
Factory Service/Shop Repair Manual
Engine:
Engine assembly, disassembly, tuning, and component diagnostics.
Transmission Drivetrain:
Clutch systems (primary and secondary), chaincase, track system, and drive components.
Fuel System:
Carburetor(s) adjustment and cleaning, fuel pump, fuel lines, and fuel tank.
Electrical System:
Ignition system, lighting, stator, CDI unit, and wiring diagrams.
Suspension:
Front and rear suspension geometry, shock absorbers, springs, and linkage systems.
Brakes:
Brake system components, hydraulic lines, caliper service, and braking performance.
Cooling System:
Cooling system maintenance, radiator, coolant type, and thermostat.
Chassis Bodywork:
Frame, body panels, seat, handlebars, and controls.
Maintenance:
Oil changes, filter replacements, chain lubrication and adjustment, spark plug service, general inspection.
Troubleshooting:
Diagnosing common issues, error codes (if applicable), performance problems, and starting difficulties.
Repair:
Step-by-step instructions for component replacement and repair, from minor adjustments to major overhauls.
Depth:
Comprehensive, covering everything from basic fluid changes to complex engine and transmission overhauls, suitable for DIY enthusiasts and professional technicians.
Engine Type:
2-Stroke, Triple Cylinder
Engine Displacement:
700cc (approximate, based on common Indy Ultra configurations of the era)
Engine Cooling:
Liquid-Cooled
Horsepower:
Estimated 110-120 HP (typical for this class of engine in 1998)
Torque:
Not specified, but expected to be strong for its displacement.
Carburetion:
Triple Mikuni VM Series Carburetors (e.g., VM34 or VM36, specific size may vary by sub-model)
Ignition Type:
CDI (Capacitor Discharge Ignition)
Oil Injection:
Automatic Oil Injection system
Transmission Type:
CVT (Continuously Variable Transmission) with Polaris P90 Primary Clutch and Polaris Secondary Clutch
Gear Reduction:
Chaincase with single speed reduction gearing
Clutch Calibration:
Manual provides details on clutch weight, spring, and ramp adjustments for optimal performance.
Chassis Type:
Phazer chassis platform (common for Indy models of this era)
Dry Weight:
Approximately 500-550 lbs (subject to specific RMK configuration)
Track Length:
RMK models typically featured longer tracks for mountain riding (e.g., 136 inches or longer).
Track Width:
Standard 15 inches width.
Lug Height:
RMK models often had aggressive lug heights for snow traction (e.g., 1.75 inches or higher).
Oil Change Interval:
Refer to manual for specific mileage/hour intervals; typically every 25-50 operating hours or annually.
Spark Plug Replacement:
Recommended at approximately 1,000-1,500 mile intervals, or as indicated by plug condition.
Clutch Inspection:
Inspect primary and secondary clutches annually or every 500 miles for wear on buttons, rollers, and drive belts.
Engine Oil Type:
API-TC rated 2-stroke synthetic or semi-synthetic snowmobile oil for oil injection system.
Chaincase Oil Type:
Polaris Chaincase Lubricant or equivalent SAE 80W-90 gear oil.
Coolant Type:
Ethylene glycol based antifreeze mixture with a 50/50 ratio for freeze protection.
Coolant Capacity:
Refer to manual for specific capacity, typically around 2-3 liters.
Drive Belt Wear:
Frequent inspection and replacement of drive belts are critical due to stress and heat.
Carburetor Fouling:
Carburetors can be prone to fouling if fuel is left stagnant or improper fuel/oil mixtures are used.
Suspension Bushings:
Wear in suspension bushings and linkage components can affect handling and ride quality.
Drive Belt P N:
Refer to manual or Polaris parts lookup for specific belt cross-reference (e.g., Dayco XTX2295 or similar).
Spark Plug P N:
NGK BR9ES or equivalent (confirm via manual).
Polar Is Legacy:
Polaris has a long history of snowmobile innovation and performance, with the Indy line being a flagship model.
Indy Series:
The Indy series represented Polaris's performance-oriented trail and mountain sleds throughout the 1980s and 1990s.
Rmk Designation:
RMK (Riser Mount Keel) designated models are specifically engineered for mountain riding and deep snow capabilities.
Manufacturing Era:
The late 1990s was a period of significant development in snowmobile technology, with Polaris at the forefront.
