🏷️ Basic Information Identification Make: Honda Model: FourTrax 350 / Foreman 350D Model Variant: TRX350 (FourTrax 350), TRX350D (Foreman 350D) Production Years: 1986-1989 Codes Chassis Code Trx350: TRX350 Chassis Code Trx350D: TRX350D 👋 Introduction Market Position Target Audience: Owners and mechanics of 1986-1989 Honda FourTrax 350 and TRX350D Foreman ATVs Competitive Analysis Value Proposition: Comprehensive repair and maintenance guidance, enabling DIY repairs and informed servicing Key Features Manual Usability: Searchable and navigable PDF format with detailed instructions and diagrams Support: Free replacement offered if the manual is lost 📋 Manual Details Coverage Areas Vehicle Model Years Covered: 1986, 1987, 1988, 1989 Vehicle Model Variants Covered: Honda FourTrax 350 (TRX350), Honda TRX350D Foreman Page Count Page Count: 304 Manual Type Manual Type: Service Manual / Repair Manual Language Language: English Format File Format: PDF Download 📖 Manual Coverage Systems Covered Engine: Complete overhaul, assembly, disassembly, tuning, troubleshooting Fuel System: Carburetor (CR26) service, adjustments (idle mixture, pilot jet, main jet), fuel pump, fuel tank Ignition System: CDI, magneto, spark plug specifications, troubleshooting no spark Transmission: Automatic transmission, clutch operation, torque converter, transmission fluid, gear shifting mechanisms Drivetrain: Front and rear drive shafts, differentials, axles, U-joints Suspension: Front forks, rear swingarm, shocks, springs, linkage, bearings Brakes: Front and rear drum brakes, brake cables, brake fluid specifications (if applicable), adjustment procedures Electrical System: Battery, charging system (stator, rectifier/regulator), lighting (headlight, taillight, brake light), starter motor, switches Cooling System: Air-cooled engine, radiator (if applicable to specific variants), coolant replacement (for TRX350D Foreman if liquid cooled) Exhaust System: Muffler, exhaust pipes, gaskets, removal and installation Frame And Body: Frame inspection, body panels, fenders, skid plates, seat removal Steering: Handlebars, steering stem, tie rods, steering linkage Procedures Included Maintenance: Oil changes, filter replacement, lubrication schedule, valve clearance adjustment, spark plug replacement, brake adjustments, chain adjustment (if applicable) Troubleshooting: Diagnostic charts, common problems (e.g., no spark, starting issues, poor performance), error code interpretation (if applicable) Repair: Complete tear down and rebuild procedures for all major components, cylinder head removal/installation, piston replacement, crankshaft repair, transmission rebuild, carburetor overhaul Installation: Installation of replacement parts, accessories, and components Diagnostics: Step-by-step diagnostic guides for various systems Technical Depth Depth Of Coverage: Comprehensive from basic maintenance to complete engine and transmission overhauls Visual Aids: Includes pictures and diagrams for clarity Data Tables: Torque specifications, fluid capacities, measurements Searchability: Searchable PDF for quick information retrieval Navigation: Clickable chapters for easy navigation 📊 Manual Specifications File Format Digital Format: PDF Print Quality Print Permissions: No restrictions on printing Binding Type Digital Saving Options: No restrictions on saving/burning to disc Paper Type Digital Delivery: Instant download ⚙️ Engine Specifications Primary Engine Engine Type: Four-stroke, OHV, air-cooled Engine Code: TRX350E (typical) Performance Displacement: 342 cc Bore X Stroke: 78.0 mm x 72.0 mm (typical) Compression Ratio: 8.8:1 (typical) Horsepower: Approximately 21-23 hp (estimated, specific figures vary by year/tuning) Torque: Approximately 20-22 lb-ft (estimated, specific figures vary by year/tuning) Fuel System Carburetor Model: Keihin CR26 (typical) Fuel Type: Unleaded gasoline Lubrication Engine Oil Type: API SE, SF, or SG service classification, SAE 10W-40 (check manual for exact specification and viscosity) Oil Capacity: Approximately 3.4 US qt (3.2 L) with filter change (refer to manual for exact capacity) 🔧 Transmission Standard Transmission Type: Automatic (Honda's Torque Converter Automatic Transmission - TC) Gear Selection: Automatic, with selectable low range (on Foreman models) Features Drive System: Shaft drive, 2WD/4WD selectable (especially on Foreman models) Transmission Fluid Type: Honda Genuine ATF (Automatic Transmission Fluid) or equivalent (verify in manual) 📐 Dimensions Exterior Overall Length: Approximately 76.5 inches (1945 mm) (varies slightly by model) Overall Width: Approximately 43.3 inches (1100 mm) (varies slightly by model) Overall Height: Approximately 43.1 inches (1095 mm) (varies slightly by model) Wheelbase: Approximately 49.2 inches (1250 mm) (varies slightly by model) Weights Dry Weight: Approximately 480-520 lbs (218-236 kg) (varies by model and equipment) Curb Weight: Approximately 500-540 lbs (227-245 kg) (varies by model and equipment) Ground Clearance: Approximately 5.9 inches (150 mm) (varies by model) 🛡️ Safety Features Ratings Atv Safety Standards: Designed to meet ANSI and other relevant safety standards for ATVs of its era Active Features Braking System: Effective front and rear drum brakes, parking brake Passive Features Ergonomics: Stable riding position, ergonomic controls, comfortable seating Lighting: Headlight, taillight, and brake light for visibility 💡 Technology Features Infotainment Infotainment System: N/A (Basic utility ATV of its era) Driver Assistance Driver Assistance Features: N/A (Basic utility ATV of its era) Connectivity Connectivity Features: N/A (Basic utility ATV of its era) 🔧 Maintenance Service Intervals Engine Oil Change Interval: Typically every 1000 km or 6 months, whichever comes first (refer to manual for exact specification) Air Filter Cleaning Interval: Regular inspection and cleaning, replacement as needed (more frequently in dusty conditions) Spark Plug Replacement Interval: Refer to manual, typically around 2000 km or annually Valve Clearance Check...
Diagnostic charts, common problems (e.g., no spark, starting issues, poor performance), error code interpretation (if applicable)
Repair:
Complete tear down and rebuild procedures for all major components, cylinder head removal/installation, piston replacement, crankshaft repair, transmission rebuild, carburetor overhaul
Installation:
Installation of replacement parts, accessories, and components
Diagnostics:
Step-by-step diagnostic guides for various systems
Technical Depth
Depth Of Coverage:
Comprehensive from basic maintenance to complete engine and transmission overhauls
Headlight, taillight, and brake light for visibility
💡 Technology Features
Infotainment
Infotainment System:
N/A (Basic utility ATV of its era)
Driver Assistance
Driver Assistance Features:
N/A (Basic utility ATV of its era)
Connectivity
Connectivity Features:
N/A (Basic utility ATV of its era)
🔧 Maintenance
Service Intervals
Engine Oil Change Interval:
Typically every 1000 km or 6 months, whichever comes first (refer to manual for exact specification)
Air Filter Cleaning Interval:
Regular inspection and cleaning, replacement as needed (more frequently in dusty conditions)
Spark Plug Replacement Interval:
Refer to manual, typically around 2000 km or annually
Valve Clearance Check Interval:
Typically every 2000 km or annually
Fluid Specifications
Engine Oil Specification:
API SE, SF, or SG service classification, SAE 10W-40 (verify in manual)
Transmission Fluid Specification:
Honda Genuine ATF or equivalent (verify in manual)
Known Issues
Carburetor Tuning:
Carburetors can become finicky with age, requiring periodic cleaning and adjustment of idle mixture and pilot jets for optimal performance.
Electrical Connections:
Corrosion or loose connections in the electrical system can lead to starting issues or intermittent power loss.
Suspension Wear:
Bushings and bearings in the swingarm and suspension linkages can wear over time, leading to play and reduced handling.
Drive Shaft U Joints:
Wear in the universal joints of the drive shafts can cause clunking noises and affect power delivery.
Brake Adjustment:
Drum brake adjustment may be required periodically to maintain braking performance.
📚 Vehicle History
Brand Heritage
Honda Atv Legacy:
Honda has a long and distinguished history in the development and manufacturing of ATVs, being one of the pioneers in the industry.
Model Evolution
Fourtrax Lineage:
The FourTrax 350 and Foreman 350D were key models in Honda's lineup, known for their reliability, durability, and utility. The Foreman line emphasized features like 4WD for more demanding terrain.
Production
Manufacturing Era:
Produced during a significant period of ATV development in the late 1980s.
🏆 Awards & Recognition
Recognitions
Brand Reputation:
Honda is renowned for building reliable and durable ATVs. Models from this era are often praised for their longevity.
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