Name:   Gallette's - Subject:   Mercury Engine Problem Date:   4/24/2016 8:00:49 PM

My Mercury 150 Optimax engine is acting strange. When I trottle up, it works fine like it should. After I get on plane if I throttle it back it slows down to a very slow speed and then won't throttle back up unless I put it in neutral and then throttle up from there again. Any ideas about what the problem might be?