One look is all it takes to
appreciate the QuadSport Z400's sporty, aggressive styling. A sharp
nose with stacked dual headlights, twin air intakes and
high-mounted, deeply-flared front and rear fenders make the
QuadSport the most unique-appearing Suzuki ATV ever built. Even
standing still, the QuadSport Z400 looks like its moving.
The twin air intakes--positioned just inboard in front of each fender - direct more air to the radiator. The fuel tank holds 10 liters (2.7 US gallons), and the tank itself weighs just 1.3 kgs. (2.9 lbs.) and is easy to remove for routine maintenance.
Suzuki's own T-shaped seat is narrow
at the front, and flares out over the rear fenders, making it
easier for the rider to comfortably shift his or her weight
back-and-forth, and side-to-side. Seat height is 810 mm (31.9
inches), and smooth transitions between the seat, bodywork, and
fuel tank contribute to rider maneuverability. And the QuadSport
Z400 is as light as it looks, weighing just 370 lbs. (168 kgs.)
dry.
When it comes to moving a machine
off-road, what really counts is plenty of engine work, delivered
over a wide rpm range. The QuadSport Z400's 398cc engine delivers a
flat torque curve and strong response from 3,000 rpm all the way up
and over 8,000 rpm.
This is an engine that can serve as a case study in advanced, lightweight, state-of-the-art design. An aluminum-alloy, oversquare, 90.0 x 62.6 mm, four-stroke, liquid-cooled, DOHC single-cylinder powerplant with four valves actuated by cam lobes riding directly on bucket tappets.
The cylinder head features a narrow,
28-degree included valve angle for a compact, efficient combustion
chamber, with an 11.3:1 compression ratio. The narrow valve angle
allows the use of a straighter intake tract between the 36 mm
Mikuni carburetor and the cylinder head, improving charging
efficiency. The valves themselves are relatively large, 36 mm
intakes and 29 mm exhausts, all with narrow, 5mm stems to improve
port flow. High-tensile steel-alloy valve springs with
aluminum-alloy retainers are more compact and lighter than
conventional valve springs and steel retainers. A dry-sump
lubrication system helps make the engine itself more compact, and
allows the engine to be placed lower in the frame--lower the center
of gravity.
The aluminum-alloy cylinder is
plated with Suzuki's own race-proven
nickel-phosphorus-silicon-carbide coating, known as SCM (Suzuki
composite electrochemical material), which reduces weight and
improves heat transfer, allowing tighter, more efficient
piston-to-cylinder clearance. The piston is durable forged aluminum
alloy, reducing weight. A counterbalancer shaft reduces vibration,
while an automatic cam chain tensioner and an electronic CDI
ignition system simplify routine maintenance. If those engine
specifications and features sound familiar, they should: the
Quadsport Z400's engine is based on the well-proven DR-Z400 Suzuki
motorcycle powerplant.
The QuadSport Z400 features a manual
clutch and a five-speed manual transmission with reverse gear. A
handy knob mounted on the right front fender releases the reverse
interlock, and allows the shift pedal to be used to select reverse
gear. Final drive is via an O-ring-sealed chain.
The Quadsport Z400's chassis
features a lightweight, rigid, high-tensile steel-alloy tube frame
and subframe. Independent double-wishbone front suspension with
preload-adjustable coil-over shocks delivers 210mm (8.3 inches) of
wheel travel. The aluminum-alloy swingarm rear suspension system
features a single, fully-adjustable piggyback-reservoir shock and
produces 231 mm (9.1 inches) of wheel travel. Wheelbase is 1,245mm
(49.0 inches) with 262mm (10.3 inches) of ground clearance.
A tube-steel front bumper and a
high-impact-plastic skid plate are standard equipment. The skid
plate is lighter than conventional metal plates, is resistant to
dents and corrosion, and slides easily over terrain high spots.
Durable, serrated steel footpegs are vented to reduce mud
build-up.
Aluminum-alloy wheels are standard on the QuadSport Z4000, 10.0 x 5.50-inch front and 9.0 x 8.00-inch rear, carrying Dunlop AT22x7-10 front radicals and AT20x10-9 rear radicals. Hydraulic disc brakes are featured all around, dual discs up front and a single disc in the rear. A convenient parking feature allows the rear brake to be set using the left handlebar lever.
The QuadSport Z400 is the first ATV with vertically-stacked, dual multi-reflector halogen headlights. Both headlights use a dual-filament, high-beam/low-beam 30/30W bulb. And the QuadSport Z400 comes standard with a multi-reflector combination taillight and brake light. Neutral selection, reverse selection and coolant temperature indicator lights are mounted on the handlebar cover. A 175-watt generator and maintenance-free battery are standard.
In a way, the Suzuki QuadSport Z400
is a case of technology versus technology. It is a machine
incorporating state-of-the-art engine and chassis design, with an
advanced, aggressive look to match. Yet the Z400 is best used to
escape the modern technological world from which it came. A machine
meant to transport its rider into the moment: Concentrating on
carving across the face of a dune instead of concentrating on the
reaction of a customer. Concentrating on picking a line though a
corner instead of answering a phone line. Concentrating on doing
what feels right instead of doing what is expected. In a world of
work, the QuadSport Z4000 stands ready. Engineered for fun.
The twin air intakes--positioned just inboard in front of each fender - direct more air to the radiator. The fuel tank holds 10 liters (2.7 US gallons), and the tank itself weighs just 1.3 kgs. (2.9 lbs.) and is easy to remove for routine maintenance.
Suzuki's own T-shaped seat is narrow
at the front, and flares out over the rear fenders, making it
easier for the rider to comfortably shift his or her weight
back-and-forth, and side-to-side. Seat height is 810 mm (31.9
inches), and smooth transitions between the seat, bodywork, and
fuel tank contribute to rider maneuverability. And the QuadSport
Z400 is as light as it looks, weighing just 370 lbs. (168 kgs.)
dry.| Performance |
This is an engine that can serve as a case study in advanced, lightweight, state-of-the-art design. An aluminum-alloy, oversquare, 90.0 x 62.6 mm, four-stroke, liquid-cooled, DOHC single-cylinder powerplant with four valves actuated by cam lobes riding directly on bucket tappets.
The cylinder head features a narrow,
28-degree included valve angle for a compact, efficient combustion
chamber, with an 11.3:1 compression ratio. The narrow valve angle
allows the use of a straighter intake tract between the 36 mm
Mikuni carburetor and the cylinder head, improving charging
efficiency. The valves themselves are relatively large, 36 mm
intakes and 29 mm exhausts, all with narrow, 5mm stems to improve
port flow. High-tensile steel-alloy valve springs with
aluminum-alloy retainers are more compact and lighter than
conventional valve springs and steel retainers. A dry-sump
lubrication system helps make the engine itself more compact, and
allows the engine to be placed lower in the frame--lower the center
of gravity.
The aluminum-alloy cylinder is
plated with Suzuki's own race-proven
nickel-phosphorus-silicon-carbide coating, known as SCM (Suzuki
composite electrochemical material), which reduces weight and
improves heat transfer, allowing tighter, more efficient
piston-to-cylinder clearance. The piston is durable forged aluminum
alloy, reducing weight. A counterbalancer shaft reduces vibration,
while an automatic cam chain tensioner and an electronic CDI
ignition system simplify routine maintenance. If those engine
specifications and features sound familiar, they should: the
Quadsport Z400's engine is based on the well-proven DR-Z400 Suzuki
motorcycle powerplant.
The QuadSport Z400 features a manual
clutch and a five-speed manual transmission with reverse gear. A
handy knob mounted on the right front fender releases the reverse
interlock, and allows the shift pedal to be used to select reverse
gear. Final drive is via an O-ring-sealed chain.| Chassis & Suspension |
A tube-steel front bumper and a
high-impact-plastic skid plate are standard equipment. The skid
plate is lighter than conventional metal plates, is resistant to
dents and corrosion, and slides easily over terrain high spots.
Durable, serrated steel footpegs are vented to reduce mud
build-up.Aluminum-alloy wheels are standard on the QuadSport Z4000, 10.0 x 5.50-inch front and 9.0 x 8.00-inch rear, carrying Dunlop AT22x7-10 front radicals and AT20x10-9 rear radicals. Hydraulic disc brakes are featured all around, dual discs up front and a single disc in the rear. A convenient parking feature allows the rear brake to be set using the left handlebar lever.
The QuadSport Z400 is the first ATV with vertically-stacked, dual multi-reflector halogen headlights. Both headlights use a dual-filament, high-beam/low-beam 30/30W bulb. And the QuadSport Z400 comes standard with a multi-reflector combination taillight and brake light. Neutral selection, reverse selection and coolant temperature indicator lights are mounted on the handlebar cover. A 175-watt generator and maintenance-free battery are standard.
| Using Technology to Escape Technology |
In a way, the Suzuki QuadSport Z400
is a case of technology versus technology. It is a machine
incorporating state-of-the-art engine and chassis design, with an
advanced, aggressive look to match. Yet the Z400 is best used to
escape the modern technological world from which it came. A machine
meant to transport its rider into the moment: Concentrating on
carving across the face of a dune instead of concentrating on the
reaction of a customer. Concentrating on picking a line though a
corner instead of answering a phone line. Concentrating on doing
what feels right instead of doing what is expected. In a world of
work, the QuadSport Z4000 stands ready. Engineered for fun.
| QUADSPORT™ Z400 SPECIFICATIONS |
| Engine: | 398cc, 4-stroke, four-cylinder, liquid-cooled, DOHC, 4-valve, TSCC |
| Bore & Stroke: | 90.0 x 62.6mm |
| Compression Ratio: | 11.3:1 |
| Fuel System: | Mikuni BSR36 |
| Lubrication: | Dry sump |
| Ignition: | Digital/transistorized |
| Starter: | Electric |
| Transmission: | 5-speed, with reverse |
| Final Drive: | # 525 chain |
| Overall Length: | 1830mm (72.0 in.) |
| Overall Width: | 1150mm (45.3 in.) |
| Overall Height: | 1115mm (43.9 in.) |
| Seat Height: | 810mm (31.2 in.) |
| Ground Clearance: | 262mm (10.3 in.) |
| Wheelbase: | 1245mm (49.0 in.) |
| Dry Weight: | 168kg (370 lbs.) |
| Suspension: | |
|
FRONT: |
Independent, double A-arm, 5-way adjustable preload, 8.3 inches of travel |
|
REAR: |
Linkage-type, gas/oil damped, fully adjustable spring preload, adjustable compression and rebound damping, 9.1 inches of travel |
| Brakes: | |
| FRONT: | Dual hydraulic discs |
| REAR: | Single hydraulic disc |
| Tires: | |
| FRONT: | AT 22 x 7-10 |
| REAR: | AT 20 x 10-9 |
| Fuel Tank Capacity: | 10 liters (2.65 gal.) |
| Color: | Yellow |
|
Please submit any technical questions to the bulletin board. |
 |
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