Covered Models:
1986-1989 Honda TRX350 Fourtrax 4WD, 1987-1989 Honda TRX350D Foreman 4x4
Covered Years:
1986, 1987, 1988, 1989
Type:
Factory Service Repair Workshop Manual
Estimated Page Count:
Hundreds of pages, typical for a comprehensive factory service manual. Exact count not provided but implied to be extensive.
Engine:
Yes, complete disassembly and reassembly, lubrication, cooling, fuel system
Transmission:
Yes, including gearshift linkage and crankcase components
Drivetrain:
Yes, front wheel, rear wheel, suspension, steering, 4WD system (Foreman models)
Electrical:
Yes, battery, charging system, alternator, starter clutch, electric starter, ignition system, lights, meters, switches, wiring diagram
Chassis And Body:
Yes, frame, body panels, exhaust system
Brakes:
Yes, hydraulic brake system
Maintenance:
Yes, scheduled maintenance, lubrication, fluid checks
Troubleshooting:
Yes, dedicated troubleshooting section
Repair:
Yes, step-by-step repair instructions for all covered systems
Disassembly Reassembly:
Yes, based on complete disassembly of the machine
Depth:
Comprehensive, covering basic maintenance to complete engine and transmission rebuilds
Diagrams:
High-quality, detailed exploded diagrams
Illustrations:
Top-quality diagrams and instructions
Engine Type:
Four-stroke, OHC, V-twin (common configuration for this era of Honda ATVs, confirm specific variant)
Displacement:
342cc (approximate, typical for TRX350 variants)
Horsepower:
Not explicitly stated, but estimated in the 20-25 HP range for the era
Carburetion:
Dual Carburetors (typical for V-twin engines of this size)
Cooling Method:
Air-cooled
Oil Type:
Requires specific motorcycle/ATV engine oil, consult manual for grade (e.g., SAE 10W-30 or 10W-40)
Bore X Stroke:
Likely in the range of 60mm x 60mm (typical for 342cc V-twins, precise data in manual)
Compression Ratio:
Typically around 9.0:1 to 9.5:1 for this engine type, detailed in manual
Type:
Automatic Transmission with Torque Converter (Honda's unique DCT-like system for the era)
Gear Selection:
Push-button electronic gear selection (3 forward gears + reverse)
Drive Modes:
2WD/4WD selectable (Foreman models), 2WD (Fourtrax models)
Transmission Oil Type:
Specific Honda ATV transmission fluid or equivalent, refer to manual for exact specification and capacity
Length:
Approximately 79-81 inches (specifics vary by sub-model, consult manual)
Width:
Approximately 41-43 inches (specifics vary by sub-model, consult manual)
Height:
Approximately 42-44 inches (specifics vary by sub-model, consult manual)
Dry Weight:
Approximately 460-500 lbs (specifics vary by sub-model, consult manual)
Curb Weight:
Not explicitly stated, but includes fluids and battery
Display:
Digital meter console with indicators for gear position, neutral, oil pressure, and engine temperature (may vary).
Traction Control:
No electronic traction control systems in this era.
Bluetooth Usb:
Not applicable for this model year.
Starting System:
Electric Start
Lighting System:
Halogen headlights, LED taillight/brakelight
Oil Change Interval:
Typically every 1000 km or 6 months, but consult the manual for exact intervals and conditions.
Air Filter Cleaning:
Frequent inspection and cleaning, especially in dusty conditions, as detailed in the manual.
Spark Plug Replacement:
Recommended replacement based on mileage or time, specific intervals in the manual.
Engine Oil Capacity:
Approximately 2.5 - 3.0 liters (refer to manual for precise capacity and grade).
Brake Fluid Type:
DOT 3 or DOT 4, consult manual for specific recommendation.
Common Wear Items:
Brake pads, tires, drive belts (if applicable), suspension bushings, universal joints (on 4WD models).
Electrical Connections:
Corrosion or loose connections can cause intermittent electrical issues; routine inspection is advised.
Carburetor Cleaning:
Can become clogged with debris over time, requiring periodic cleaning and adjustment.
Tire Pressure:
Crucial for proper handling and longevity; specific pressures detailed in the manual.
Brand Focus:
Honda is renowned for its reliability, engineering excellence, and robust engines across its entire product line, including ATVs.
Trh350 Development:
The TRX350 series represented Honda's continued innovation in the utility ATV market, offering a powerful V-twin engine and advanced features like the automatic transmission and electric-shift 4WD system (on Foreman models).
Manufacturing Location:
Typically manufactured in Japan or North America by Honda.
