Name:	Gallette's -	Reply
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?

Name:	CAT BOAT -	Reply
Subject:	Mercury Engine Problem
Date:	5/29/2016 5:21:28 PM

Maybe its the trottle position sensor???

Name:	Lifer -	Reply
Subject:	Mercury Engine Problem
Date:	5/30/2016 1:25:40 PM

You didnt give much infobut if it is a newer I/OIt may have digital throttle controls which have gone bad.  OUr SeaRay290 had the same issue.  When we took it in for 100 hour service I mentioned it to them and he suspected the digital throttle and checked it out and replaced it.  Lucky for us it was still under the extended warranty.  On the DTS mooving the throttle back to neutral resets the system