History-last year motor running fine-during winter storage maintenance I cross-threaded a spark plug hole. Brought it to a Merc. service center, head was removed and heli-coil installed.
I got boat back from mechanic with a bouncy idle 800-820rpm, mechanic said possibility bad gas-Used Stab-il when I did storage maintenance? Also motor shakes/vibrates causing steering to turn at idle because of bouncy idle.
I finally got the boat out yesterday, first time all year-the it would not go past 3200 rpm-all out-very under powered.
In reverse the Rpms go past 3200. I put fresh gas in yesterday morning-premium.
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