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Thank you for allowing me to assist you, my name is Joe and I will be happy to assist you with your concern today.
These do not have a carburetor since they are fuel injected. If the engine is using excess fuel I would check fuel pressure during the problem as well as checking the injectors and an injector leak down test to see if you possibly have a hanging injector that is sticking and releasing excess fuel. I would also check compression during the problem, spark, etc.
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