Patent ID: 6523627
Filing Date: 2003-02-25
Classification: B60Y,F01P,F02B

Abstract:
An all terrain vehicle comprising a frame, a seat mounted to an upper portion of the frame, at least one front wheel and at least one rear wheel connected to the frame, an engine and an engine transmission assembly mounted within the frame, the engine comprising a cylinder block, a cylinder head assembly attached to the cylinder block and a crankcase cover attached to the cylinder block generally opposite the cylinder head assembly, a cooling pump attached to a side of at least one of the engine and the engine transmission assembly, a crankshaft mounted for rotation within a crankcase generally defined by the cylinder block and the crankcase cover, a balancer shaft positioned generally rearward of said crankshaft and driven by the crankshaft, and the cooling pump drive driven off the balancer shaft, wherein the cooling pump comprises a laterally extending external surface and the engine transmission assembly further comprises a laterally extending external surface arranged such that the laterally extending external surface of the cooling pump is closer to a longitudinal center plane of the vehicle than the laterally extending external surface of the engine transmission assembly.