Just wanted to start off by saying this is my first post on this website but I have been following this forum for a couple of years now, ever since I was looking to buy my first boat.
I have a 2002 Sanger DLX with a merc 350 mag mpi direct drive engine. I had this problem for 3 seasons now but nerver figured out what the problem could be. When I run the boat on idle, sometimes the engine would jerk, kind of making a popping sound. It will only do it while in idle.
Another thing, and I don't know if the problem is related, but when I have the boat running at any steady speed, the idle will sometimes fluctuate up and down without touching the throttle.
Any thoughts?
Thanks!
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