First, it needs to be mounted on the boat. And the boat determines how fast the attached motor will go. If the boat is wood, then it will likely float deeper in the water, and not be particularly fast.
If the boat is a smaller fiberglas one, then the motor and boat will go faster.
Based on much boating experience, I would say that most boats could go 30 to 35 mph with the 40hp Merc.
Depends if you put it on an 8 foot skiff or a 40 foot barge.
72cc usually gets to 30-40 but it all depends on the treatment of the bike
the 20hp Mercury outboard motor runs at the most at 8mph on a good 14ft to 16ft aluminum boat. Mercury.co
150mph
420 cc how fast
depends on the boat is it a v hull or flat also the weight you are carrying you can probably gp at least 40
The Motor will do 35-40mph
Mercury freezes at approximately that temperature.
with a fast motor 100mph (ish)
about 40
17,544 mph.
How fast Wil a 180cc motor scooter go