00 40HP Four Stroke - idles fine but dies at around 2500 rpm?

grimpy

Seaman
Joined
Mar 20, 2006
Messages
54
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Sup guys.

Just picked up a boat with a 4/00 build Yamaha Four Stroke 40HP outboard.
The thing starts up fine but will choke if I don't warm it up a bit. Anyways... It idles fine, it also goes in forward and reverse with little throttle. However, when I go any higher than 2500 rpm, it will just turn off and there is a beep sound.

The gas in the tank is kind of old, I would assume. Could this be a problem? I haven't picked up a manual yet but will probably order one soon. In the meantime, any suggestions on what to check?

Regards
Darrin
 
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