Depending on if your engine has a restriction or a set speed, you can go as fast as 55 to 65 miles a hour.
A 6 hp outboard will go about fast enough to plane a 10 ft. aluminum boat, with one passenger aboard.
i would say its like a 125cc engine so 50mph 45-55 mph if cart no more than 250 lb.s -m This is wrong. I have a 11 hp go kart and it is 388cc and so it goes alot faster. well engines have so many rpms so the size does not matter but you can gear a bigger engine to make it go faster
About 10 to 12 on plane
15
about 40mph
50 to 60
165 hp
Answer now.
59 hp
274 HP
Depends on gearing
about 10 to 15 miles per hour depending on pitch of prop i believe but don't quote me