They have 360⁰ crank phasing (both pistons go up and down together )and no ballance shaft so it will dance about at low speeds.
Maybe you could put down your beer can and pie and just hold on to your fishing rod 
Does "EFI" not mean electronic fuel injection ?
Not trying to catch you , just wanting to make sure it didnt mean something else . Some of these outboards has a lot of letters in their model designation .Yeah , you'd thing a basic carb would be cheaper and just as green , I guess you need to be seen to be green , there are probly dudes that would pass up on a carbed motor if there was an efi one next to it .
Don't feel bad.Right after I took posession of it I spent a half hour looking for the choke...still have not found one.
My 9.9 2 stroke was smooth all the way
Thank you and you hit the nail on the head.I would still have my 2 stroke if It hadn't put a rod through the block.They have 360⁰ crank phasing (both pistons go up and down together )and no ballance shaft so it will dance about at low speeds.
You may be able to alleviate both issues a bit by fitting a shorter prop so its doing more revs at the same speed which will smooth out the shaking and / or slow down your trolling speed .
Ally dinghies dont have a lot of mass and will shake about more than a fibreglass one under similar circumstances.
If you have just moved from a 2 cylinder 2 stroke with 180⁰ piston phasing ( they all are )...one piston going up while tother goes down .....cancelling each other out , and twice as many firing strokes......the new motor will seem quite shaky .
What sort of 2 stroke was it , and do you still have the carcass ?
