Suzuki fuel-injection
system features a 36mm throttle
body and 12-hole injector
that delivers the fuel/air
mix in an efficient fine-mist
spray pattern
Engine Control Unit uses
a 16-bit CPU and a 96-kilobyte
ROM unit. The system is
programmed to obtain improved
traction by selecting the
optimum injection volume,
injection timing and ignition
timing based on throttle
position, engine rpm, and
other data monitored
Styling reflects the powerful
attitude of the QuadRacer
R450, including the sharp
fenders, the overall slim
design and the removable headlight
The chassis's rigidity balance
is changed to improve handling
stability, chassis strength
and overall performance, particularly
in rough terrain
The footpegs are now 46mm
wide - same as the QuadRacer
R450
Front track is widened by
25mm to improve overall handling
stability feel
Key
Features
The 2012 Suzuki QuadSport
Z400 is engineered for high-performance
off-road four-wheeling with
smooth power-output and
throttle response from Suzuki
fuel injection
Engine
Features
Compact & lightweight
398cc 4-stroke, single-cylinder,
liquid-cooled Dual Overhead
Cam engine with counter-
balancer tuned for tractable
power over a wide rpm range
Convenient electric start
system includes Start-In-Gear
feature - electric start
system and CDI ignition
are powered by compact maintenance-free
battery
Dry-sump lubrication system
allows a compact crankcase
and minimal engine height
for optimum engine placement
- oil tank is frame-mounted
in front of the exhaust head
pipes
Liquid-cooling system with
high-capacity radiator and
thermostatically controlled
cooling fan provides consistent
engine operating temperature
Chassis
Features
Long-travel, independent
double A-arm front suspension
with fully adjustable, piggyback
reservoir-style shock absorbers
- provides 8.5 in. of wheel
travel
Linkage-type rear suspension
features fully adjustable,
piggyback reservoir-style
shock absorber with 9.1
in. of wheel travel, plus
10.4 in. of ground clearance
Dual 30/30W, vertically-mounted
halogen headlights provide
a bold look and bright illumination
- large 5/21W taillight/brake
light combination
Front brake lever position
adjustment mechanism is
changed to the same system
used on the high-performance
QuadRacer R450, making brake
adjustments much easier.
Large 2.5-gallon fuel
tank with two mounting points
for quick removal and simplified
maintenance
Large 6.9 inch dual front
disc brakes and single 8.6
inch rear disc brake
Lightweight aluminum alloy
wheels (F: 10.0 x 5.5, R:
9.0 x 8.0), and radial
tires (F: 22 x 7-10, R:
20x10-9), for reduced unsprung
weight
Lightweight, high tensile
steel-alloy frame and removable
steel sub-frame, plus aluminum
swingarm
Rear axle shaft taper
is changed to heighten rigidity
balance and provide optimum
performance in conjunction
with changes made to front
track.
