Fuel injection system for a saddle ride type four-wheel vehicle

A saddle ride four-wheel all-terrain vehicle having an electronic control fuel injection system in a fuel supply system for an air-cooled engine mounted thereon, said vehicle comprising:

• a pair of front wheels having a rotational center axis defined therebetween;
• a vehicle body frame including left-right pairs of upper pipes and lower pipes disposed at upper and lower portions of the body frame and extending in the front-rear direction of the vehicle;
• a fuel tank disposed above a front side portion of the upper pipe of the vehicle frame;
• a cooling fan for blowing air to the engine is located below the upper frame and between the rotational axis of the front wheels and the engine;
• a fuel sump portion provided at a bottom center portion of the fuel tank and extending to a space located beneath the upper pipes of the vehicle frame and behind the cooling fan in the rear direction of the vehicle;
• a fuel pump disposed on a rear side of the vehicle relative to the rotational center axis of front wheels and on a front side of the vehicle relative to said engine, and
• a throttle body is disposed on a rear side of a cylinder head of said engine, wherein the fuel sump portion is approximately V-shaped in vehicle body side view and in vehicle body front view,
• the fuel pump is disposed between the cooling fan and said engine, and
• said engine is a traverse layout engine.