I have an "oldish" 140HP Suzuki with no model number or serial number on it. It is a 2 stroke, inline 4 cylinder with 4 carbs and oil injection system. I don't have any manuals and don't know how to obtain any.<br />I find difficulty in starting from cold. The engine runs well and starts first time when it is warmed up. I use the choke, but no throttle - is this correct?<br />Can someone help with the identification?