I recently purchased a 1998 Yamaha 40 HO 2-stroke, model C40tlrx. I've taken it out two times, the first time the engine ran great. The second time I would hear a chirp while idle, but it ran great after putting it in gear and the chirp went away. I took it home and tried starting it to locate the problem. I start it up and it idles for a few seconds then I hear a chirp and it turns off. I cannot get it to continue to run at idle. I can't tell where the noise is coming from. It almost sounds like there is a rush of air which causes a whistling sound.I have a video of it running at the link below. Can anybody tell me what is causing the chirp or what I should check?
Video
Video
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