I have a 1984 mercury 50 hp 4 cylinder 2 stroke motor that I recently purchased.
It seems to have a loss of power that happens when the motor is cold. Almost like its not running on all cylinders. If I let it warm up I can hear a sound that could only be described as a click or clunk and the motor runs great!(as if the other cylinder starts working) It doesn't happen all the time, most of the times is when the boat has sat overnight. But once I hear the sound I know that its running good and have no problem getting on plane and is good to go. The motor had sat for around 7 years before I got it and before that had been used very little. So, of course I assume its fuel related. It has dual carbs. I have taken the carbs out and cleaned them, and replaced all new gaskets throughout. None of the jets are restricted or dirty.
Maybe a carb syncing issue? Is there any method that I could use to test or syn the carbs?
Other than that I would think maybe a coil pack starting to go out? Is there a way to test that with a voltage meter?
Any input or ideas on this would be greatly appreciated!
thanks in advance
Any Ideas?
It seems to have a loss of power that happens when the motor is cold. Almost like its not running on all cylinders. If I let it warm up I can hear a sound that could only be described as a click or clunk and the motor runs great!(as if the other cylinder starts working) It doesn't happen all the time, most of the times is when the boat has sat overnight. But once I hear the sound I know that its running good and have no problem getting on plane and is good to go. The motor had sat for around 7 years before I got it and before that had been used very little. So, of course I assume its fuel related. It has dual carbs. I have taken the carbs out and cleaned them, and replaced all new gaskets throughout. None of the jets are restricted or dirty.
Maybe a carb syncing issue? Is there any method that I could use to test or syn the carbs?
Other than that I would think maybe a coil pack starting to go out? Is there a way to test that with a voltage meter?
Any input or ideas on this would be greatly appreciated!
thanks in advance
Any Ideas?
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