Honda FOURTRAX 350 4x4 2001

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IMPORTANT NOTICES

AGE RECOMMENDATION

READ THIS MANUAL CAREFULLY

SPECIAL MESSAGES

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will result if instructions are not followed.

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or death may result if instructions are not

followed.

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damage could result if instructions are not

followed.

The minimum recommended age for this FOURTRAX model is 16.

Children under age 16 should never operate this vehicle.

Your Owner’s Manual contains important information on safety, opera-

tion, and maintenance. Anyone who operates this FOURTRAX should

carefully read and understand the contents of this manual before

riding the vehicle.

Honda provides many important safety messages both in this manual

and on the vehicle. For your safety and the safety of others, pay special

attention to all warnings preceded by this alert symbol . Failure to

follow the warnings contained in this manual can result in SERIOUS

INJURY or DEATH.

To protect your vehicle from damage, pay attention to cautions.

Gives helpful information.

The Owner’s Manual should be considered a permanent part of your

FOURTRAX. It should remain with the vehicle at all times and stay with

the FOURTRAX if it is sold.

01/04/28 16:27:35 3CHN5620_001

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This document is the Owner's Manual for the Honda FOURTRAX 350 4x4, model TRX 350 FM. It provides essential information on safety, operation, and maintenance for the All-Terrain Vehicle (ATV).

Function Description

The Honda FOURTRAX 350 4x4 is an ATV designed for off-road use only. It is not a toy and handles differently from other vehicles like motorcycles and cars. The vehicle is equipped with a 329.1 cm³ (20.08 cu-in) engine and a five-speed transmission (1, 2, 3, 4, and 5 forward gears) plus a reverse gear. It features a four-wheel drive system, where operating any brake control causes braking at both the front and rear wheels. The long seat is designed for the operator to shift body position as needed, not for carrying passengers. The ATV includes cargo racks (front and rear) for carrying loads and a trailer hitch for towing.

Important Technical Specifications

Dimensions:
- Overall length: 1,983 mm (78.1 in)
- Overall width: 1,143 mm (45.0 in)
- Overall height: 1,130 mm (44.5 in)
- Wheelbase: 1,246 mm (49.1 in)
Weight: Dry weight: 238 kg (525 lbs)
Capacities:
- Engine oil: 2.5 ℓ (2.6 US qt, 2.2 Imp qt)
- Fuel tank: 13.0 ℓ (3.43 US gal, 2.86 Imp gal)
- Fuel reserve: 3.2 ℓ (0.85 US gal, 0.70 Imp gal)
Engine:
- Bore and stroke: 78.5 × 68.0 mm (3.09 × 2.68 in)
- Compression ratio: 8.8 : 1
- Displacement: 329.1 cm³ (20.08 cu-in)
- Engine idle speed: 1,400 ± 100 rpm
- Standard spark plug: DPR7EA-9 (NGK) or X22EPR-U9 (DENSO)
- Spark plug gap: 0.8 – 0.9 mm (0.03 – 0.04 in)
- Valve clearance: 0.15 mm (0.006 in)
Chassis and Suspension:
- Caster angle: 4.0°
- Trail length: 17 mm (0.7 in)
- Tire size, Front: AT24 × 8-12
- Tire size, Rear: AT24 × 9-11
Power Transmission:
- Primary reduction: 2.188
- Secondary reduction: 1.933
- Final reduction Front: 3.769, Rear: 3.692
- Gear ratios: 1st (3.455), 2nd (1.933), 3rd (1.333), 4th (0.966), 5th (0.720)
- Reverse gear ratio: 4.600
Electrical System:
- Battery: 12 V – 12 Ah
- Generator: 0.245 kW/5,000 min⁻¹ (rpm)
- Headlight (Low/High): 12 V 30/30 W × 2
- Taillight: 12 V 5 W × 1
- Neutral indicator: LED
- Reverse indicator: LED
- Oil high temperature indicator: LED
- Fuses: Main fuse (30 A), Sub fuses (15 A × 2, 10 A × 2)
Noise and Vibration:
- Noise level (ISO 5131): 80.0 dB (A)
- Vibration on seat (EN 1032, ISO 5008): Not exceed 0.5 m/s²
- Vibration on handlegrip (EN 1033, EN 709): 3.27 m/s²

Usage Features

Controls:
- Ignition Switch: Located on the handlebars, controls engine and headlight operation. Key can be removed only in the OFF position.
- Engine Stop Switch: Next to the left handgrip, has RUN and OFF positions. Primarily a safety/emergency control.
- Choke Knob: On the left handlebar, for starting a cold engine (temperatures 10°–35°C). Pull up for fully ON, push down for fully OFF.
- Starter Button: Below the engine stop switch, used to start the engine when transmission is in neutral, ignition is ON, and engine stop switch is RUN.
- Starting Primer Knob: On the carburetor float bowl (left side), for starting engine below 15°C (5°F). Push 2-3 times before starting.
- Recoil Starter: On the right side, for starting when battery is low.
- Throttle Lever: Next to the right handgrip, operated by thumb. Spring tension automatically closes throttle when pressure is released.
- Headlight & Dimmer Switches: Above engine stop switch. Headlight switch (ON) turns on headlights, dimmer switch selects high or low beam.
- Reverse Selector Knob: On the rear brake lever. To engage reverse, stop, ensure neutral, push knob in, squeeze rear brake lever, then depress gearshift pedal.
- Front Brakes: Hydraulic drum brakes, operated by squeezing the front brake lever.
- Rear Brake: Mechanical drum brake, operated by depressing the brake pedal or squeezing the rear brake lever. The rear brake lever has a lock for parking.
- Fuel Valve: On the left side of the fuel tank, with OFF, ON, and RES (reserve) positions. Turn OFF when not in use.
Multi-function Display: Includes speedometer, odometer/tripmeter, digital clock/hourmeter, and indicators for reverse, neutral, and oil high temperature. Buttons allow selection and adjustment of these functions.
Riding Guidelines:
- Age Recommendation: Minimum 16 years old. Children under 16 should not operate ATVs over 90 cc.
- Protective Apparel: Always wear an approved motorcycle helmet, eye protection, gloves, boots, long-sleeved shirt/jacket, and long pants.
- Passengers: Never carry passengers.
- Alcohol/Drugs: Never operate under the influence.
- Off-Road Only: Designed for off-road use; never operate on paved surfaces or public roads/highways.
- Hands/Feet: Keep both hands on handlebars and both feet on footpegs during operation.
- Speed: Avoid excessive speeds; adjust to terrain, visibility, conditions, and experience.
- Stunts: Never attempt wheelies, jumps, or other stunts.
- Unfamiliar Terrain: Go slowly, be alert for changing conditions.
- Rough/Slippery Terrain: Exercise caution, avoid hard braking/accelerating.
- Hills: Practice on gentle slopes first. Shift weight forward when climbing, backward when descending. Avoid excessively steep hills.
- Obstacles: Check for obstacles in new areas. Reduce speed, be prepared to stop.
- Water: Designed for water up to 250 mm (10 in) deep. Proceed slowly, test brakes after leaving water.
Cargo & Towing: Observe weight limits (Max. weight capacity: 220 kg/485 lbs). Cargo must be properly distributed and secured. Reduce speed when carrying cargo or towing. Avoid steep slopes or crossing slopes when towing.

Maintenance Features

Pre-Ride Inspection: Daily checks include engine oil level, fuel level, brakes, tires, throttle, headlights, engine stop switch, driveshaft boots, nuts/bolts/fasteners, steering, cargo, underbody/exhaust system, and air cleaner housing drain tube.
Tool Kit: Includes standard/Phillips screwdriver, screwdriver handle, 10x12 mm and 14x17 mm open end wrenches, spark plug wrench, pliers, and tool case. Stored in the storage compartment.
Fuel System:
- Refueling: Use unleaded petrol with pump octane number (R+M)/2 of 86 or higher. Avoid overfilling.
- Petrol with Alcohol: Use gasohol with no more than 10% ethanol. Avoid methanol-containing fuels.
Throttle: Check cable condition and free play (3-8 mm at lever tip). Adjust if necessary.
Air Cleaner: Clean periodically, more frequently in dusty areas. Drain water from housing if submerged.
Carburetor: Check choke cable and knob for damage or kinks.
Idle Speed & Air-Fuel Mixture: Adjust when engine is warm. Idle speed: 1,400 ± 100 rpm.
Engine Oil: Check daily. Use Honda 4-stroke oil or equivalent (SAE 10W-40 recommended). Change oil and filter according to schedule.
Rear Final Gear Case Oil: Change according to schedule. Use HYPOID GEAR OIL SAE 80.
Differential Oil: Change according to schedule. Use HYPOID GEAR OIL SAE 80.
Spark Plug: Inspect electrodes for wear, check gap (0.8-0.9 mm). Replace if worn or damaged.
Valves: Check valve clearance (0.15 mm). Adjustment requires specialized tools and knowledge.
Clutch: Check and adjust clutch free play.
Reverse Lock System: Check and adjust reverse assist lever free play (2-4 mm).
Brakes:
- Front Brakes: Check lever free play (25-30 mm), lining thickness (standard 4.0 mm, limit 1.0 mm), and fluid level (DOT 3 or 4).
- Rear Brake: Check pedal free play (15-20 mm), lever free play (15-20 mm), and shoe wear.
- Draining Water: Remove inspection hole plug (front) and drain bolt (rear) to check for water after riding in water.
Wheels and Tyres:
- Removal/Installation: Follow specific procedures for wheel removal and tightening wheel nuts (64 N·m / 47 lbf·ft) in a crisscross pattern.
- Tyre Pressure: Check frequently when cold. Use low-pressure tubeless tires.
- Tread Condition: Minimum tread depth 4 mm (0.16 in).
- Repairing Flat Tyres: Use plug method for temporary repair; have permanently repaired by authorized dealer.
Seat Removal: Pull seat lock lever to remove.
Engine Guard & Skid Plates: Check for cracks, damage, or looseness.
Spark Arrester: Periodically purge accumulated carbon.
Driveshaft Boots: Check for damage or leaking grease.
Storage: For extended storage, change oil/filter, drain fuel tank/carburetor, remove/charge battery, wash/wax, inflate tires, and place on blocks.