Engine
                                        Four-stroke, OHV; two valves per cylinder
                                        Four-stroke, OHV; two valves per cylinder
                                     
                                
                            
                                
                                    
                                
                            
                                
                                    
                                
                            
                                
                                    
                                
                            
                                
                                    
                                        Bore x Stroke
                                        1.8 x 1.9 in. (47.0 x 49.5 mm)
                                        1.8 x 1.9 in. (47.0 x 49.5 mm)
                                     
                                
                            
                                
                                    
                                        Compression Ratio
                                        9.2:1
                                        9.2:1
                                     
                                
                            
                                
                                    
                                        Carburetion
                                        16 mm piston-valve carburetor
                                        16 mm piston-valve carburetor
                                     
                                
                            
                                
                                    
                                        Starting
                                        Electric
                                        Electric
                                     
                                
                            
                                
                                    
                                        Fuel Capacity
                                        1.7 gal. including 0.3 gal. reserve
                                        1.7 gal. including 0.3 gal. reserve
                                     
                                
                            
                         
                    
                        
                            
                                
                                    
                                        Includes
                                        Important Safety Information - Recommended for riders 10 years of age and older. Honda recommends that all ATV riders take a training course and thoroughly read their owner's manual. An adult must supervise TRX90X riders younger than 16 years of age.
                                        Important Safety Information - Recommended for riders 10 years of age and older. Honda recommends that all ATV riders take a training course and thoroughly read their owner's manual. An adult must supervise TRX90X riders younger than 16 years of age.
                                     
                                
                            
                                
                                    
                                        Warranty
                                        One year, transferable, unlimited mileage limited
                                        One year, transferable, unlimited mileage limited