2014 HONDA FOURTRAX 420
Press release date: 12th March 2014
Model updates: Honda’s all-round ATV receives a brand new chassis with more suspension travel, adjustable spring preload front and rear plus improved durability. Also upgraded are bodywork, rider comfort, electrical system, headlights and EPS option; the engine is 10% more fuel-efficient with improvements to the optional DCT gearbox.
Contents:
1 Introduction
2 Updates in brief
3 Updates in detail
4 Model variants
5 Technical specifications
1. Introduction
A Honda ATV is the ultimate work mate. Each is built with the quality, technology and reliability that only Honda can inject, and will last for years, providing unstoppable service in all conditions and weathers.
The Fourtrax 420 is the all-round ATV and Honda’s best seller. Its combination of class leading power, easy-to-manage size and affordability make it the perfect choice for all sorts of duty, and a variety of model variants – starting with a fast and agile 2wd base model – make finding the perfect Fourtrax a straightforward task.
For 2014 Honda has taken its do-everything ATV back to the drawing board, improving its performance, reliability and all-round ability with an all-new chassis and host of technical upgrades.
2. Updates in brief
3. Updates in detail
Frame
Computer Aided Engineering (CAE) was used to redesign the frame and it’s 20% stiffer than the previous model – and 2.26kg lighter. Its rigidity balance has been carefully tuned to reduce harshness and give a smoother ride; the overall result is more precise handling and control plus improved stability.
Front Suspension
The independent double wishbone design gets an extra 10mm travel, giving a total of 170mm for better front tyre traction, steering accuracy and rider comfort. The suspension settings have been revised and spring preload can now be adjusted to suit loads carried.
Rear Suspension
The rear drive shaft axle is now enclosed for greater protection and support of the drive bearings. The rear disc brake has been re-sited inside the right rear wheel, out of harm’s way. Rubber bushings absorb loads between frame and swingarm at the pivot point; they’re bonded to an inner and outer collar so debris cannot intrude. Suspension travel is increased 103mm to 170mm.
CV Joint Protection
Plastic CV joint boots have replaced rubber. The revised inboard and outboard boot guard layout improves protection and the plastic boots themselves have 65% greater puncture resistance and twice the tear strength. Sealed steering knuckle bearings add durability.
Styling
The Fourtrax’s new bodywork maintains its ability to protect from mud and flying debris, plus the unique floorboards that allow the rider’s feet to grip the footrests while keeping away mud and debris. The one-piece tank cover and side panels can be removed without tools and give immediate access to the engine, the fuel tank, intake system and electrical components. Improving comfort for the rider the seat has been redesigned and is thicker.
Lighting
New dual front headlights feature 35/35W bulbs, as opposed to 30/30W giving increased output with light distribution more focused in low and high beam.
Instruments
Added electronic fuel gauge, clock, water temp gauge, and “maintenance minder” system (hours & mile/km)
Electrical Power Steering (EPS)
The EPS unit now mounts in three places rather than two adding a greater rigidity balance to the steering. It features a revised ECU map that significantly reduces low speed steering effort whether loaded or unloaded. Kickback is also decreased, aiding rider comfort and the steering’s linearity/damping is enhanced.
Electrical system
The Alternating Current Generator (ACG) has been uprated to 416W, giving an improved margin for running electrical accessories. A wet-type GYZ16 battery has replaced the dry-type YTX14 unit. It features 16Ah capacity and offers improved reliability.
Engine
The 420cc liquid-cooled OHV engine is unchanged. Unique to Honda it’s longitudinally mounted and ensures a low centre of gravity, plus delivers direct and efficient drive top to the drive shafts. The fuel injection and air-intake system have been fine-tuned to give even smoother power delivery and throttle feel; a new automotive-spec fuel pump increases durability and is easier to service. It uses a cam lock ring and O-ring to secure it in the tank and its filter now has a 100,000km (rather than 18,500km) life.
The 10% increase in fuel economy – with no loss of drivability or power – has been achieved by using a ‘leaner’ fuel map for when cruising, and a ‘richer’ map at high engine speed and large throttle openings. An 02 lambda sensor in the exhaust constantly adjusts the fuelling, lowering emissions.
Dual Clutch Transmission
The five-speed DCT’s shift map has been modified to improve shifting. For a more intuitive feel ‘hunting’ (swapping between two gears) is significantly reduced and the ‘kick down’ parameters have been adjusted sharpening engine response and feel. The ECU will also detect an aggressive or casual driving pattern and its Dual Shift Map reacts to suit – a Sport map is applied for hard riding and a Cruise map used in normal conditions. Revision of driveline components has reduced shift shock improving rider comfort.
4. Model variants
Fourtrax 420 2wd (TRX420TM1E)
Agile and powerful, with manual five-speed gearbox and automatic clutch.
Fourtrax 420 2wd (TRX420TE1E)
Electric Shift Program (ESP) adds handlebar-mounted push-button gear changes.
Fourtrax 420 2/4wd (TRX420FM1E)
Switchable 2/4wd, plus manual five-speed gearbox and automatic clutch.
Fourtrax 420 2/4wd (TRX420FE1E)
Electric Shift Program (ESP) adds handlebar-mounted push-button gear changes.
Fourtrax 420 2/4wd (TRX420FM2E)
Electric Power Steering (EPS) reduces effort for all-day riding comfort.
Fourtrax 420 2/4wd (TRX420FA1E)
Dual Clutch Transmission with five forward gears and reverse, plus independent double-wishbone rear suspension.
6. Technical Specifications
TRX420TM1E
ENGINE |
|
Type |
Liquid-cooled single cylinder, 4-stroke |
Displacement |
420cc |
Bore ´ Stroke |
86.5mm x 71.5mm |
Compression Ratio |
9.9 : 1 |
Max. Power Output |
26.6 BHP @ 6250rpm |
Max. Torque |
24.6 lb/ft @ 5000rpm |
Oil Capacity |
3.3L |
FUEL SYSTEM |
|
Carburation |
FI |
Fuel Tank Capacity |
14.7L |
Fuel Consumption |
17.6 km/l |
ELECTRICAL SYSTEM |
|
Ignition |
Full transisterised Ignition |
Starter |
Electric and Recoil |
Battery Capacity |
12V 16Ah |
ACG Output |
416W @ 5,000 r/min |
DRIVETRAIN |
|
Clutch Type |
Multiplate wet clutch |
Transmission Type |
5 speed manual + reverse |
Final Drive |
Shaft |
FRAME |
|
Type |
Steel double cradle |
CHASSIS |
|
Dimensions (L´W´H) |
2103 x 1205 x 1174mm |
Wheelbase |
1268mm |
Caster Angle |
30kg / 60kg |
Trail |
14kg / 385kg |
Seat Height |
856mm |
Ground Clearance |
183mm |
Kerb Weight |
261kg |
Turning Radius |
2.8 m |
SUSPENSION |
|
Type Front |
Double wishbone |
Type Rear |
Trailing type |
WHEELS |
|
Type Front |
Tubeless (composite & steel press) |
Type Rear |
Tubeless (composite & steel press) |
Rim Size Front |
12 x 6.0 |
Rim Size Rear |
11 x 7.5 |
Tyres Front |
AT24 x 8-12 |
Tyres Rear |
AT24 x 10-11 |
BRAKES |
|
Type Front |
Hydraulic disc |
Type Rear |
Mechanical drum |
INSTRUMENTS & ELECTRICS |
|
Instruments |
Digital |
Headlight |
35/35W |
Taillight |
LED |
TRX420TE1E
ENGINE |
|
Type |
Liquid-cooled single cylinder, 4-stroke |
Displacement |
420cc |
Bore ´ Stroke |
86.5mm x 71.5mm |
Compression Ratio |
9.9 : 1 |
Max. Power Output |
26.6 BHP @ 6250rpm |
Max. Torque |
24.6 lb/ft @ 5000rpm |
Oil Capacity |
3.3L |
FUEL SYSTEM |
|
Carburation |
FI |
Fuel Tank Capacity |
14.7L |
Fuel Consumption |
17.6 km/l |
ELECTRICAL SYSTEM |
|
Ignition |
Full transisterised Ignition |
Starter |
Electric and Recoil |
Battery Capacity |
12V 16Ah |
ACG Output |
416W @ 5,000 r/min |
DRIVETRAIN |
|
Clutch Type |
Multiplate wet clutch |
Transmission Type |
5 speed manual + reverse |
Final Drive |
Shaft |
FRAME |
|
Type |
Steel double cradle |
CHASSIS |
|
Dimensions (L´W´H) |
2103 x 1205 x 1174mm |
Wheelbase |
1268mm |
Caster Angle |
30kg / 60kg |
Trail |
14kg / 385kg |
Seat Height |
856mm |
Ground Clearance |
183mm |
Kerb Weight |
278kg |
Turning Radius |
2.8 m |
SUSPENSION |
|
Type Front |
Double wishbone |
Type Rear |
Trailing type |
WHEELS |
|
Type Front |
Tubeless (composite & steel press) |
Type Rear |
Tubeless (composite & steel press) |
Rim Size Front |
12 x 6.0 |
Rim Size Rear |
11 x 7.5 |
Tyres Front |
AT24 x 8-12 |
Tyres Rear |
AT24 x 10-11 |
BRAKES |
|
Type Front |
Hydraulic disc |
Type Rear |
Mechanical drum |
INSTRUMENTS & ELECTRICS |
|
Instruments |
Digital |
Headlight |
35/35W |
Taillight |
LED |
TRX420FM1E
ENGINE |
|
Type |
Liquid-cooled single cylinder, 4-stroke |
Displacement |
420cc |
Bore ´ Stroke |
86.5mm x 71.5mm |
Compression Ratio |
9.9 : 1 |
Max. Power Output |
26.6 BHP @ 6250rpm |
Max. Torque |
24.6 lb/ft @ 5000rpm |
Oil Capacity |
3.3L |
FUEL SYSTEM |
|
Carburation |
FI |
Fuel Tank Capacity |
14.7L |
Fuel Consumption |
17.6 km/l |
ELECTRICAL SYSTEM |
|
Ignition |
Full transisterised Ignition |
Starter |
Electric and Recoil |
Battery Capacity |
12V 16Ah |
ACG Output |
416W @ 5,000 r/min |
DRIVETRAIN |
|
Clutch Type |
Multiplate wet clutch |
Transmission Type |
5 speed manual + reverse |
Final Drive |
Shaft |
FRAME |
|
Type |
Steel double cradle |
CHASSIS |
|
Dimensions (L´W´H) |
2103 x 1205 x 1174mm |
Wheelbase |
1268mm |
Caster Angle |
30kg / 60kg |
Trail |
14kg / 385kg |
Seat Height |
856mm |
Ground Clearance |
183mm |
Kerb Weight |
277kg |
Turning Radius |
2.8 m |
SUSPENSION |
|
Type Front |
Double wishbone |
Type Rear |
Trailing type |
WHEELS |
|
Type Front |
Tubeless (composite & steel press) |
Type Rear |
Tubeless (composite & steel press) |
Rim Size Front |
12 x 6.0 |
Rim Size Rear |
11 x 7.5 |
Tyres Front |
AT24 x 8-12 |
Tyres Rear |
AT24 x 10-11 |
BRAKES |
|
Type Front |
Hydraulic disc |
Type Rear |
Mechanical drum |
INSTRUMENTS & ELECTRICS |
|
Instruments |
Digital |
Headlight |
35/35W |
Taillight |
LED |
TRX420FE1E
ENGINE |
|
Type |
Liquid-cooled single cylinder, 4-stroke, OHV pushrod and rocker arm |
Displacement |
420cc |
Bore ´ Stroke |
86.5mm x 71.5mm |
Compression Ratio |
9.9 : 1 |
Max. Power Output |
26.6 BHP @ 6250rpm |
Max. Torque |
24.6 lb/ft @ 5000rpm |
Oil Capacity |
3.3L |
FUEL SYSTEM |
|
Carburation |
FI |
Fuel Tank Capacity |
14.7L |
Fuel Consumption |
17.6 km/l |
ELECTRICAL SYSTEM |
|
Ignition |
Full transisterised Ignition |
Starter |
Electric and Recoil |
Battery Capacity |
12V 16Ah |
ACG Output |
416W @ 5,000 r/min |
DRIVETRAIN |
|
Clutch Type |
Multiplate wet clutch |
Transmission Type |
5 speed + reverse |
Final Drive |
Shaft |
FRAME |
|
Type |
Steel double cradle |
CHASSIS |
|
Dimensions (L´W´H) |
2103 x 1205 x 1174mm |
Wheelbase |
1268mm |
Caster Angle |
30kg / 60kg |
Trail |
14kg / 385kg |
Seat Height |
856mm |
Ground Clearance |
183mm |
Kerb Weight |
278kg |
Turning Radius |
2.8 m |
SUSPENSION |
|
Type Front |
Double wishbone |
Type Rear |
Trailing type |
WHEELS |
|
Type Front |
Tubeless (composite & steel press) |
Type Rear |
Tubeless (composite & steel press) |
Rim Size Front |
12 x 6.0 |
Rim Size Rear |
11 x 7.5 |
Tyres Front |
AT24 x 8-12 |
Tyres Rear |
AT24 x 10-11 |
BRAKES |
|
Type Front |
Hydraulic disc |
Type Rear |
Mechanical drum |
INSTRUMENTS & ELECTRICS |
|
Instruments |
Digital |
Headlight |
35/35W |
Taillight |
LED |
TRX420FM2E
ENGINE |
|
Type |
Liquid-cooled single cylinder, 4-stroke, OHV pushrod and rocker arm |
Displacement |
420cc |
Bore ´ Stroke |
86.5mm x 71.5mm |
Compression Ratio |
9.9 : 1 |
Max. Power Output |
26.6 BHP @ 6250rpm |
Max. Torque |
24.6 lb/ft @ 5000rpm |
Oil Capacity |
3.3L |
FUEL SYSTEM |
|
Carburation |
FI |
Fuel Tank Capacity |
14.7L |
Fuel Consumption |
17.6 km/l |
ELECTRICAL SYSTEM |
|
Ignition |
Full transisterised Ignition |
Starter |
Electric and Recoil |
Battery Capacity |
12V 16Ah |
ACG Output |
416W @ 5,000 r/min |
DRIVETRAIN |
|
Clutch Type |
Multiplate wet clutch |
Transmission Type |
5 speed Manual + reverse |
Final Drive |
Shaft |
FRAME |
|
Type |
Steel double cradle |
CHASSIS |
|
Dimensions (L´W´H) |
2103 x 1205 x 1174mm |
Wheelbase |
1268mm |
Caster Angle |
30kg / 60kg |
Trail |
14kg / 385kg |
Seat Height |
856mm |
Ground Clearance |
183mm |
Kerb Weight |
283kg |
Turning Radius |
2.8 m |
SUSPENSION |
|
Type Front |
Double wishbone |
Type Rear |
Trailing type |
WHEELS |
|
Type Front |
Tubeless (composite & steel press) |
Type Rear |
Tubeless (composite & steel press) |
Rim Size Front |
12 x 6.0 |
Rim Size Rear |
11 x 7.5 |
Tyres Front |
AT24 x 8-12 |
Tyres Rear |
AT24 x 10-11 |
BRAKES |
|
Type Front |
Hydraulic disc |
Type Rear |
Mechanical drum |
INSTRUMENTS & ELECTRICS |
|
Instruments |
Digital |
Headlight |
35/35W |
Taillight |
LED |
TRX420FA1E
ENGINE |
|
Type |
Liquid-cooled single cylinder, 4-stroke, OHV pushrod and rocker arm |
Displacement |
420cc |
Bore ´ Stroke |
86.5mm x 71.5mm |
Compression Ratio |
9.9 : 1 |
Max. Power Output |
27.0 BHP @ 6500rpm |
Max. Torque |
23.8 lb/ft @ 5000rpm |
Oil Capacity |
4.0L |
FUEL SYSTEM |
|
Carburation |
FI |
Fuel Tank Capacity |
14.7L |
Fuel Consumption |
16.4 km/l |
ELECTRICAL SYSTEM |
|
Ignition |
Full transisterised Ignition |
Starter |
Electric and Recoil |
Battery Capacity |
12V 16Ah |
ACG Output |
450W @ 5,000 r/min |
DRIVETRAIN |
|
Clutch Type |
Multiplate wet clutch |
Transmission Type |
5 speed Automatic + reverse |
Final Drive |
Shaft |
FRAME |
|
Type |
Steel double cradle |
CHASSIS |
|
Dimensions (L´W´H) |
2103 x 1205 x 1174mm |
Wheelbase |
1268mm |
Caster Angle |
30kg / 60kg |
Trail |
14kg / 385kg |
Seat Height |
856mm |
Ground Clearance |
183mm |
Kerb Weight |
285kg |
Turning Radius |
2.8 m |
SUSPENSION |
|
Type Front |
Double wishbone |
Type Rear |
Trailing type |
WHEELS |
|
Type Front |
Tubeless (composite & steel press) |
Type Rear |
Tubeless (composite & steel press) |
Rim Size Front |
12 x 6.0 |
Rim Size Rear |
11 x 7.5 |
Tyres Front |
AT24 x 8-12 |
Tyres Rear |
AT24 x 10-11 |
BRAKES |
|
Type Front |
Hydraulic disc |
Type Rear |
Mechanical drum |
INSTRUMENTS & ELECTRICS |
|
Instruments |
Digital |
Headlight |
35/35W |
Taillight |
LED |