V-Double-cylinder,four-stroke air-cooled hand-clutched electric starter 250ccSPECIFICATIONDisplacement: 248.9mlCompression ratio: 10:1Primary reduction: 3.130
V-Double-cylinder,four-stroke air-cooled hand-clutched electric starter 400ccSPECIFICATIONDisplacement: 399.5mlCompression ratio: 9.7:1Primary reduction: 2.212