- The DR-Z400S comes with a compact design, 398cc, DOHC, liquid-cooled, dry-sump engine that produces strong low-rpm power. Its compact 4-valve cylinder head features 36mm intake valves and 29mm exhaust valves.
- Suzuki Composite Electrochemical Materials (SCEM) cylinder for durability, weight reduction and superior heat transfer.
- Digitally mapped DC-CDI system monitors throttle position/engine rpm and adjusts ignition timing to maintain efficient combustion.
- Forged aluminum piston is 10 percent lighter than a cast piston and receives additional oil-cooling to the piston crown through a crankcase oil jet.
- A Mikuni™ 36mm carburetor fed by a 6-liter airbox provides smooth throttle response. The left side cover has quick-release fasteners for easy access to the air filter.
- Electric start system provides convenient operation and features a lightweight starter motor and a compact 6.5 amp maintenance-free battery.
- Magnesium-alloy clutch, magneto and cam covers contribute to weight reduction.