Each cylinder head features a compact combustion chamber with two 31mm intake valves set at 14-degrees from the cylinder centerline and two 25.5mm exhaust valves set at 16-degrees from the cylinder centerline.
Each 39mm throttle body carries a 10-hole fuel injector. The extra-fine atomization injectors produce an average spray particle diameter that is smaller for improved combustion efficiency
Suzuki Dual Throttle Valve (SDTV) fuel injection system provides better efficiency and throttle response through a butterfly valve system with the primary valve controlled by the rider and the secondary throttle valve controlled by the engine management system.
An automatic Idle Speed Control (ISC) system is integrated into each throttle body, and produces stable idle while improving cold starting and reducing emissions immediately after start up.
Dual spark plugs cylinder heads feature iridium spark plugs reduce spark plug electrode degradation and allow the electrode to be finer producing a more intense, hotter spark and further enhancing combustion.