from the Suzuki site.
DR-Z400S
FEATURES
KEY FEATURES
All new dual-sport model based on DR-Z400E, but with on-road legal instrumentation, lighting and emissions equipment.
Basic Differences from DR-Z400E
Compact digital instrument cluster with speedometer, odometer, twin-trip meters with addition/subtraction capability, clock, timer and stopwatch functions.
Smooth throttle response with a Mikuni BSR36 CV-type carburetor fed by 6-liter airbox. The left side cover has quick-release fasteners for easy access to the air filter.
Reduced compression ratio (12.2:1 to 11.3:1) for operation with 87-octane fuel.
On-road legal lighting with bright 60/55 watt halogen headlight, compact tail/stoplight, lightweight turnsignals and horn.
Thermostatically-controlled cooling fan mounted to the left radiator helps maintain consistent operating temperature in traffic.
Electric start with lightweight starter motor and a compact 6.5 amp maintenance-free battery. (Note: Kickstart system can be added, but does not replace electric start system)
Dual-sport tires to meet highway-use regulations, (F: 80/100-21, R: 120/90-18).
Engine Features Shared with DR-Z400E
New 398 cc, DOHC, liquid-cooled, dry-sump engine produces strong low-rpm power.
Compact 4-valve cylinder head with 36 mm intake valves, 29 mm exhaust valves, narrow 28o included valve angle and shim-under-bucket valve adjustment system.
Automatic decompression system for quick/easy engine starts.
SCEM-plated cylinder (nickel-silicon-phosphorous) is lighter and more durable than an iron liner with excellent heat transfer properties.
Forged aluminum piston is 10% lighter than a cast piston and receives additional oil-cooling to the piston crown through a crankcase oil jet.
Compact 5-speed transmission utilizes a cable operated clutch with separate outer cover for simplified clutch maintenance.
Additional weight savings with magnesium valve cover, clutch cover, and mag. cover.
Chassis Features Shared with DR-Z400E
Narrow profile with smooth transitions between the tank, seat and bodywork.
Chrome-moly steel frame is torsionally strong with minimal weight. The backbone tube, front down tube, and steering head gussets form the dry-sump engine oil tank.
A bolt-on aluminum subframe helps reduce weight and simplify maintenance.
Long travel, 49 mm cartridge-style forks feature adjustable compression/rebound damping and adjustable spring preload for all types of off-road terrain.
A fully adjustable rear shock absorber connects to a lightweight aluminum swingarm through a progressive linkage system for precise rear wheel control.
Sure stopping power is supplied by a 250 mm front disc brake with dual-piston caliper, and a 220 mm rear disc brake with a single-piston caliper.
Lightweight chrome-moly steel footpegs and aluminum rims and hubs.
