Very high idle/hard to find neutral

[jamesbalog]

My boat was just in the shop for a month and a half to get my carbs rebuilt, on the bill it stated he rebuilt the 3 carbs, adjusted throttle cables and replaced fuel lines. I picked it up Friday night and went to fish Saturday morning.

As soon as I started the boat I noticed the rpms were right around 1500 in neutral, Right around 1000-1100 in gear at idle. Once in gear it was very very hard to find neutral. Needless to say the boat went back on the trailer.

I’m assuming this is a throttle cable or control cable issue. I really don’t want to take the boat back to this guy to fix his screw up since he told me originally I’d have the boat back in a week or less and it took around 6 weeks.

Anyone have a guess at what’s wrong and maybe a walkthrough on how to fix it?

Motor is a 1981 mercury 200hp

Thanks in advance