🏷️ Basic Information Identification Make: Sea-Doo Model: GTI SE 155 Year: 2009 Generation: Third Generation GTI 📋 Manual Details Product Information Manual Type: Factory Service Repair Manual Language: English Page Count: Hundreds (exact number not specified, implies comprehensive) Format: PDF Delivery Method: Downloadable Source: Genuine Factory Manuals Printable: Yes, without restriction ⚙️ Engine Specifications Engine Details Engine Type: Rotax 4-TEC 1503 NA Engine Configuration: Inline 3-Cylinder Displacement: 1494 cc Bore X Stroke: 100 mm x 79 mm Compression Ratio: 8.5:1 Fuel Requirement: Unleaded gasoline, minimum 87 octane Power Output: 155 hp (115 kW) @ 7500 rpm Engine Cooling Cooling System: Closed-loop cooling system 🔧 Transmission Drive System Type: Direct Drive Propulsion: Jet Propulsion System (Direct Drive) 📐 Dimensions Physical Dimensions Length: 120.5 inches (306.1 cm) Width: 48 inches (121.9 cm) Height: 44.1 inches (112.0 cm) Weight Dry Weight: 718 lbs (326 kg) Capacity Person Capacity: 3 🔧 Maintenance Fluid Capacities Engine Oil Capacity: 4.1 US qt (3.9 L) Coolant Capacity: 1.8 US qt (1.7 L) Fuel Tank Capacity: 15.1 US gal (57 L) Oil Type Recommendation: SAE 5W-40 Synthetic Ester Blend Service Intervals Initial Engine Oil Change: 10 hours or 1 month Routine Engine Oil Change: 50 hours or 6 months Maintenance Procedures Covered Procedures: Engine diagnostics, fuel system, cooling system, electrical system, hull and body, steering system, maintenance schedules 📄 Electrical System Ignition Ignition System: Electronic Ignition (CDI) Battery Battery Type: 12V, 18Ah (min) 📄 Hull And Body Material Hull Material: Dura-Plastic™ Features Deck Material: Dura-Plastic™ Seating Type: Comfort Ride seat Storage Capacity: 28.3 US gal (107 L) 📄 Features Convenience Boarding Step: Standard Reboarding Step: Standard Handle Grips: Comfort grips with palm rest Mirrors: Wide-angle mirrors Safety And Security Ignition Type: D.E.S.S.™ (Digitally Encoded Security System) Learning Key: Included Performance Throttle Control: Intelligent Throttle Control (iTC) Trim System: Variable Trim System (VTS™)