YAMAHA RAPTOR 700 ENGINE

The Yamaha Raptor engine, primarily the popular 686cc liquid-cooled SOHC 4-stroke, is known for big-bore power with strong torque, featuring fuel injection, electric start, and a 5-speed transmission with reverse, balancing performance with rider-friendly features for powerful sport ATV fun. Earlier models like the Raptor 660 used a 660cc engine with 5 valves for strong displacement at the time. 

• Displacement: 686cc.
• Type: Liquid-cooled, SOHC (Single Overhead Cam), 4-stroke.
• Valves: 4 valves per cylinder.
• Fuel Delivery: Yamaha Fuel Injection (YFI) with a 44mm throttle body.
• Transmission: 5-speed with reverse.
• Starting: Electric start.
• Performance: Produces big torque from low RPMs, strong mid-range, and powerful top-end.
• Technology: Dual counterbalancers for smoother operation. 

• The Raptor 660 (first generation) had a 660cc, 5-valve engine, a significant displacement for its era, but the Raptor 700 brought a larger bore, fuel injection, and improved power delivery. 

• It's designed for big-bore thrills, offering a blend of massive power, lightweight chassis, and excellent suspension for aggressive trail riding. 

• The Raptor engine platform is popular for performance upgrades, with options for larger displacements (like 715cc or 727cc kits) and comprehensive engine rebuilds for even more power.