200 pro xs idling at high rpm

Josh J

New Member
Joined
Dec 31, 2015
Location
VA
Boat
2010 Nitro Z-7
#1
Hey guys. I have a nitro z7 with a 2010 merc 200 pro xs. Took it for general service to an authorized merc merc mechanic. After he did some general maintenance stuff (plugs and the like) the motor will idle at a higher rpm when i take it out of gear. Put it back in gear and the rpms fall back to normal. Hoping someone smarter than me can tell me what's going on.