The 2010 Sportsman XP 850, XP 850 EPS, and Touring models represent a pinnacle of all-terrain vehicle engineering, designed for demanding off-road use. Powered by a robust 850cc V-twin, 4-stroke engine with SOHC and Electronic Fuel Injection (EFI), these ATVs deliver impressive power and torque for tackling challenging terrains. Key features include renowned On-Demand All-Wheel Drive system for superior traction, advanced independent suspension for a smooth ride, and Electronic Power Steering (EPS) on select models to enhance maneuverability and reduce rider fatigue. This generation of the Sportsman line is recognized for its blend of performance, reliability, and utility, making it a competitive choice in the premium ATV market.
This comprehensive service manual provides essential information for the maintenance, repair, and troubleshooting of the 2010 Sportsman XP 850, XP 850 EPS, and Touring models. Covering a wide array of systems, including the engine, transmission, electrical components, suspension, and braking systems, it offers detailed, step-by-step instructions, diagnostic procedures, and technical specifications. With its clear explanations and diagrams, this manual serves as an invaluable resource for owners, technicians, and mechanics alike, ensuring the optimal performance and longevity of your ATV.
Model:
Sportsman XP 850 / EPS / Touring
Vehicle Type:
All-Terrain Vehicle (ATV)
Engine Type:
V-Twin, 4-Stroke, SOHC
Engine Displacement:
850cc
Drive Type:
On-Demand AWD / 2WD
Chassis Code:
Likely derived from VIN, specific code not provided but implied by model designation
Engine Code:
Not explicitly provided, but 850cc V-Twin is the primary identifier
Model Generation:
This generation of the Sportsman 850 series was a significant update, emphasizing performance and features.
Market Position:
The Polaris Sportsman XP 850 series represented Polaris's commitment to delivering high-performance, feature-rich ATVs for serious riders, catering to utility, recreational, and demanding off-road use.
Competitive Analysis:
Competed directly with other premium 800cc+ class ATVs from manufacturers like Can-Am (Outlander), Arctic Cat (Prowler), and Yamaha (Grizzly), offering a blend of power, advanced suspension, and electronic features like EPS.
Key Features:
Powerful 850cc ProStar engine, Electronic Power Steering (EPS) on select models for reduced steering effort, advanced independent suspension, Polaris's On-Demand All-Wheel Drive system, and a robust chassis designed for rugged terrain.
Covered Models:
2010 Polaris Sportsman XP 850 ATV, 2010 Polaris Sportsman XP 850 EPS ATV, 2010 Polaris Sportsman XP 850 International ATV, 2010 Polaris Sportsman XP 850 EPS International ATV, 2010 Polaris Sportsman Touring 850 EPS ATV
Manual Type:
Original Factory Service Manual / Repair Manual
Systems Covered:
General Information, Maintenance, Electronic Fuel Injection (EFI), Cooling System, Engine, Transmission, Clutching (PVT), Final Drive, Body/Frame, Steering/Suspension, Brakes, Electrical (including wiring diagrams)
Procedures Included:
Step-by-step repair instructions, routine maintenance procedures, diagnostic troubleshooting, component overhaul, electrical system analysis, wiring diagram interpretation, exploded views for component identification and assembly.
Technical Depth:
Comprehensive, covering everything from basic maintenance to in-depth engine and transmission rebuilds, as well as detailed electrical diagnostics.
Print Quality:
Designed for clarity, with high-resolution diagrams and text suitable for printing.
Binding Type:
N/A (Digital Download - Printable for 3-ring binder)
Paper Type:
N/A (Digital Download - Printable on any paper type)
Engine Description:
Polaris ProStar 850cc SOHC, liquid-cooled, V-twin, 4-stroke engine.
Horsepower:
Approximately 70-75 HP (specific rating varies slightly by source, manual will have precise figure).
Torque:
High torque output for excellent pulling and climbing capability.
Fuel System:
Electronic Fuel Injection (EFI) with throttle body size likely around 48-50mm.
Ignition System:
Electronic CDI with spark plug type and gap specified in manual.
Cooling System Type:
Liquid-cooled
Lubrication System:
Wet sump with specific oil type and capacity detailed in manual.
Transmission Type:
Automatic PVT (Polaris Variable Transmission) with Engine Braking
Optional Transmission:
N/A for this model year and engine configuration; PVT is standard.
Gear Selection:
High, Low, Neutral, Reverse, Park
Drive Engagement:
On-Demand AWD/2WD system integrated with transmission.
Wheelbase:
Approximately 50.5 inches (128.3 cm) for XP models, slightly longer for Touring.
Overall Length:
Varies by specific model (XP vs. Touring), manual will provide precise figures.
Ground Clearance:
Typically around 11.5 inches (29.2 cm).
Dry Weight:
Approximately 660-700 lbs (300-318 kg), depending on specific trim and features.
Towing Capacity:
Standard 1,500 lbs (680 kg).
Rack Capacity Front:
Typically 100 lbs (45 kg).
Rack Capacity Rear:
Typically 200 lbs (90 kg).
Safety Ratings:
ATVs are not typically assigned NCAP or IIHS safety ratings like cars; safety is primarily determined by design features and operator responsibility. Manual will detail safe operating practices.
Active Safety Features:
On-Demand AWD for enhanced traction, Engine Braking (EB) for downhill control, Disc brakes on all wheels for reliable stopping power.
Passive Safety Features:
Integrated roll cage (if applicable to specific configurations, though not standard on most ATVs of this era), handguards, handlebar design for control, robust frame structure.
Infotainment Features:
Limited to basic instrumentation: speedometer, odometer, trip meter, tachometer, fuel gauge, gear indicator, AWD/2WD indicator, and engine warning lights. No complex infotainment systems on this model.
Driver Assistance Features:
Electronic Power Steering (EPS) on applicable models, On-Demand AWD system.
Connectivity Features:
N/A
Oil Change Interval:
Typically every 100 hours or annually, whichever comes first. Manual will specify exact intervals.
Air Filter Cleaning:
Recommended every 50 hours or more frequently in dusty conditions.
Spark Plug Replacement:
Typically around 100-200 hours or annually. Manual will list correct spark plug type and gap.
Engine Oil Type:
Polaris PS-4 Synthetic 5W-50 or equivalent API SG, SH, SJ rated oil. Capacity approx. 2.5 quarts (2.4 liters).
Transmission Oil Type:
Polaris Demand Drive Fluid for front differential, Polaris PVT fluid or equivalent for rear transmission/final drive. Capacities will be specified in manual.
Coolant Type:
Ethylene glycol based antifreeze with a 50/50 mix of distilled water. Manual will specify specific coolant and capacity.
Common Issues Addressable By Manual:
Potential for drive belt wear/failure, minor electrical connector issues, clutch maintenance, suspension component wear, and EFI system tuning. Manual provides diagnostic and repair procedures for all.
Brand Heritage:
Polaris has a long-standing reputation for innovation and performance in the ATV market, with the Sportsman line being a cornerstone of their utility and recreational offerings since its introduction.
Model Evolution:
The 850cc engine was a significant upgrade, offering substantially more power and torque than previous models. The introduction of EPS on some trims further enhanced the rider experience, particularly during demanding use or at low speeds.
Production Years:
The 850cc engine was introduced in earlier years, with the XP and Touring variants solidifying its presence in the lineup. 2010 represents a specific iteration of this popular platform.
Industry Recognitions:
Polaris Sportsman models consistently receive positive reviews from powersports publications for their performance, comfort, and utility. Specific awards for the 2010 XP 850 are not detailed but its overall segment success is acknowledged.
