I bought a Madami Sunray 90cc. It is a 2 stroke with oil injection. It cranks and idles fine runs good at half throttle. But as soon as you give it full throttle it cuts out. But only when you have gained speed. Will take off at full throttle. Does anybody know if it has some kind of limiter that I can unhook or new CDI I can get. It has a five wire plug. Or do you think there is a carburator adjustment I need to do.