Hi there I’m new here . I bought cbr1100xx few weeks ago. Bike has problem with engine speed. It’s carb version. So when is cold start with choke ON is struggling with start engine , I need add throttle to start and keep adding constant until warm up engine. When engine is middle warm Engine working on 1800rpm . When temperature goes up neutral engine speed is 2500-3500. Also when is cold and I start ride . Is coughing or misfire. HELP PLEASE. What is this.