Key Features

• Legendary inline-four power plant

  The Hayabusa's muscular 1340cc in-line four-cylinder engine delivers a broad wave of torque for effortless acceleration. Its advanced design boasts liquid-cooling, ram-air downdraft induction producing 145kW (195hp) @ 9,500rpm with 155Nm of torque @ 7,200rpm.

• Forged pistons and PVD-coated rings

  Forged three-ring aluminum-alloy slipper pistons provide superior strength. The oil control ring on each piston is electro-plated with a chrome-nitride coating applied in a vacuum chamber using a Physical Vapor Deposition (PVD) system. The chrome nitride PVD coating is harder and smoother than conventional chrome plating, reducing friction while improving cylinder sealing. The upper piston ring also features an L-shaped cross section, with combustion pressure pushing the ring tighter against the cylinder wall to further reduce blowby and increase the force actually pushing the piston down.

• Titanium Valves

  Lightweight titanium valves allow the use of light valve springs and high lift while maintaining accurate valve control. 

• Suzuki Dual Throttle Valve

  The Hayabusa engine is fitted with tapered, 44mm double-barrel Suzuki Dual Throttle Valve (SDTV) throttle bodies. Unlike conventional fuel-injection systems, the SDTV system has two butterfly valves in each throttle body barrel. The rider controls the primary valve via a throttle grip, and the engine management system automatically controls the secondary valve, opening it incrementally to maintain optimum intake charge velocity based on engine rpm, gear position and primary valve opening. This precise, carefully controlled system improves combustion efficiency and makes throttle response feel more natural to the rider.