Hello people, I bought myself a 91zxr250 a week or so ago and it ran great on the test rides. The problem im having is that ill be cruising along at 100kph and the engine feels as though she running out of fuel. It will lose all power but continues to run untill i pull over (does that make sense?) I can hear the engine but there is nothing there. Because im new to the bike and riding for that matter im unsure on any problems these models may have had. After extensive searching ive read that the petcocks do play up and may need looking at, can anyone think of anything else to look for. Im pretty good on the tools so im not scared to have a go myself.