ENGINE
The class-exclusive* 645cm³ DOHC V-twin engine produces strong, torque-rich horsepower while complying with the latest emission standards.
The primary balance of the engine’s 90-degree L-twin configuration minimizes vibration so well, the engine doesn’t require a heavy, power-robbing balance shaft.
Uniquely optimised cylinders, pistons and rings
The energy-efficient engine has unique pistons that were engineered with the use of Finite Element Method (FEM) analysis to achieve optimal rigidity and weight.
Each piston skirt has a special resin coating, and the other sliding parts are tinned for less friction and greater durability – a first for a Suzuki motorcycle.
Suzuki’s innovative L-shaped piston rings contribute to reduced blow-by gas, resulting in fewer emissions and greater combustion efficiency.
Suzuki Composite Electrochemical Material (SCEM)–coated cylinders reduce friction and improve heat transfer and durability.
Both cylinder heads feature Suzuki’s original Dual Spark Technology for greater combustion efficiency, better fuel economy, and cleaner emission.
Suzuki Dual Throttle Valve (SDTV) Fuel Injection
The fuel-injection system employs the innovative Suzuki Dual Throttle Valve (SDTV) with 39mm throttle bodies. The secondary throttle valves are controlled by servo motor for smooth power delivery and optimum combustion efficiency.
The 10-hole, long-nose-type fuel injectors on each throttle body improve fuel atomization for better combustion efficiency and while reducing fuel consumption.
Air-cleaner, exhaust and radiator
The air cleaner case design has high capacity and routes crankcase breather gas from the engine cover to help increase engine power. The air intake funnels have staggered lengths to heighten mid-range torque.
The exhaust system has a clean, functional appearance and is light in weight. The 2-into-1 system employs a catalytic. converter to further reduce emissions.
The location of the muffler and its brushed stainless steel cover allow ample lean angles when cornering.
The high-efficiency radiator employs a large cooling fan for exceptional cooling capacity. To further control temperature, the engine is also fitted with a coolant-cooled oil cooler that is compact and lightweight.
Transmission and clutch
The close-ratio, 6-speed transmission features carefully selected ratios that are equally well-suited for commuting or spirited riding.
The multiplate clutch has precise push rod actuation of the pressure plate for a light pull and consistent release point.
ELECTRICAL
The advanced electronic fuel system includes Suzuki’s Low RPM Assist feature that seamlessly adjusts engine speed when pulling away from a standing start or running at low speeds to smooth the power delivery and help reduce the possibility of the rider stalling the motorcycle.
Throttle-body Integrated Idle Speed Control (TI-ISC)
Suzuki’s patented Throttle-body Integrated Idle Speed Control (TI-ISC) eases starting, stabilizes the engine idle speed, and helps lower emissions. The system is compact and lightweight.
TI-ISC helps Suzuki’s Low RPM Assist feature seamlessly adjust engine speed during standing starts and low-speed running to smooth the power delivery and to help reduce the possibility of the rider stalling the motorcycle.
Engine Control Module (ECM)
The Engine Control Module (ECM) provides state-of-the-art engine management and has enhanced settings to suit the intake and exhaust systems, resulting in better fuel economy and linear throttle response.
Advanced, transistorized ignition control programming helps maintain more precise spark timing to the four iridium, long-life spark plugs.
Easy Start System
The SV650 also features Suzuki’s Easy Start System that lets the rider start the motorcycle with a momentary press of the start switch without pulling in the clutch lever when the transmission is in neutral.
