2011 SUZUKI GSX1250FA, Engine FeaturesThe GSX1250FA is powered by a compact, liquid-cooled, fuel-injected, 1255cc, DOHC, wet sump engine that has a bore and stroke of 79.0 mm x 64.0 mm. A secondary balancer shaft enhances the engines smooth operation.Suzuki Dual Throttle valve (SDTV) fuel injection, featuring 36mm throttle bodies, brings superb response feel, smooth power delivery, improved mileage and reduced emissions.Long-wearing, tough SCEM (Suzuki Composite Electrochemical Material) cylinder-bore plating offers increased durability and efficiency.Chrome-nitride piston-ring coating contributes to reduction of friction and tighter cylinder sealing on the GSX1250FA.Suzuki Idle Speed Control (ISC) helps improve cold starting, reduce cold-start emissions and stabilize engine idle under varying conditions.Effective engine management and emissions control systems together allow the GSX1250FA to meet the latest emissions regulations and standards.A liquid-cooled oil cooler helps keep the GSX1250FA engine running cool.