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Engine runs for about 10 minutes then cuts out and will only restart with choke applied then runs for another 10 minutes and cuts out again

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Hi!

It sounds to me as if the motor is attempting to eat its own exhaust.

An easy way to check is to remove the motor cover and start it. USE CAUTION HERE! If the motor runs normally with the cover removed, you can be sure there's an exhaust leak. Our motor had the smallest bit of corrosion where the exhaust coupling bolted to the block and was leaking. It was fairly difficult to spot, but we finally found the problem.

Hope this helps.

Posted on May 23, 2011

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