Engine
                                        4-stroke, DOHC, 16-valve
Electronic throttle valves
4-stroke, DOHC, 16-valve
Electronic throttle valves
 
                                
                            
                                
                                    
                                
                            
                                
                                    
                                        Cylinders
                                        In-line 4
                                        In-line 4
                                     
                                
                            
                                
                                    
                                        Displacement
                                        399 cc
                                        399 cc
                                     
                                
                            
                                
                                    
                                        Bore x Stroke
                                        2.2 x 1.5 in. (57 x 39.1 mm)
                                        2.2 x 1.5 in. (57 x 39.1 mm)
                                     
                                
                            
                                
                                    
                                        Torque
                                        Maximum - 26.5 ft. lb. @ 11,000 rpm
                                        Maximum - 26.5 ft. lb. @ 11,000 rpm
                                     
                                
                            
                                
                                    
                                        Compression Ratio
                                        12.3:1
                                        12.3:1
                                     
                                
                            
                                
                                    
                                        Clutch
                                        Assist and slipper
                                        Assist and slipper
                                     
                                
                            
                                
                                    
                                        Fuel System
                                        DFI® with 34 mm throttle valves (4)
                                        DFI® with 34 mm throttle valves (4)
                                     
                                
                            
                                
                                    
                                        Ignition
                                        TCBI with digital advance
                                        TCBI with digital advance
                                     
                                
                            
                                
                                    
                                        Fuel Capacity
                                        4.0 gal.
                                        4.0 gal.