2009 Suzuki QuadSport Z400 Preview

Sport quad updated with fuel injection

Story by ATV.com Staff, Jun. 18, 2008

Suzuki has redesigned its race-bred QuadSport Z400 for 2009 with several features from its big brother, the QuadRacer LT-R450.

Key among the new features is Suzukiís fuel-injection system, which has a 36mm throttle body and a 12-hole injector.

Also new is the Engine Control Unit, equipped with a 16-bit CPU and a 96-kilobyte ROM unit. According to Suzuki, the system is programmed to offer improved traction, by selecting the optimum injection volume, injection timing and ignition timing based on throttle position, engine rpm and other data.

The Z400 also features new styling, including sharp fenders, overall slim design and removable headlight, all based off the R450.

The Z400 has styling and performance inspired by the R450.

Suzuki changed the rigidity balance of the chassis, which the company says will improve handling stability, chassis strength and overall performance, especially in rough terrain.

The front track of the Z400 was widened by 25mm, also to improve handling and stability, and Suzuki widened the footpegs to 46mm, the same as the R450.

Suzuki gave the Z400 a slimmer design and wider footpegs.

The Z400 is powered by a 398cc 4-stroke, single-cylinder, liquid-cooled engine with counter-balancer.

Also standard is a steel-alloy frame and removable steel sub-frame and aluminum swingarm. Long-travel, independent double A-arm front suspension is equipped with fully adjustable, piggyback reservoir-style shock absorbers with 8.5 inches of wheel travel. In the back is a linkage-type rear suspension, also with fully adjustable, piggyback reservoir-style shock with 9.1 inches of wheel travel.

The fuel-injection system has a 36mm throttle body and 12-hole injector.

Stopping power is provided by large 6.9 inch dual front disc brakes and single 8.6 inch rear disc brake, while the large 2.5-gallon fuel tank features two mounting points.

The 2009 Z400 retails for $6,199, which is $200 more than the 2008 model and $1,200 less than the R450.

2009 Suzuki QuadSport Z400 Specs
Engine Cooling Liquid-Cooled
Valvetrain DOHC, 4 Valves
Fuel Delivery Fuel Injection, 36 mm
ECU 16 bit
ROM 96 Kilobyte
Compression Ratio 11.3:1
Injector 12 hole
Displacement 398cm3 (24.3 cu. in)
Bore 90.0 mm (3.543 in)
Stroke 62.6 mm (2.465 in)
Footpegs (46mm)
Front Track (960mm) 37.8 in
Seat Height 810 mm (31.9 in)
Ground Clearance 265 mm (10.4 in)
Overall Width 1190 mm (46.9 in)
Overall Length 1830mm (72.0 in)
Curb Mass 193 kg (425 lbs)
Headlight 12V 40/40W; Detachable, single
MSRP $6,199

 
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