warm engine shutting off

Posted by casey rog On 2023/9/11 9:59:13

While driving my 41 120, I have the problem of the engine shutting off after running for about 15 minutes. It will start again, but die in 30 seconds. I rebuilt the carb. but that didn't solve the problem. I noticed that the manifold heat control valve was stick in the up position. Could this be the problem? Any suggestions will be helpful