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I am working on twin 500's. I have one going and am working to remove the head on the other to replace what I suspect are faulty reed valves. I have removed the 6 nuts that hold the head in place. The head appears to be seized on the left side of the motor. I have been trying to work the head...
I have a 50hp Mercury500's that I have been working on.
The motor doesn't want to fire.
The compression seems alright all cyl are ~115-120.
I have spark.
I have rebuilt the carbs and they are getting fuel.
It seems that there is no suction from the head. No gas is getting to the cylinders. I...
