The speed of a 6.5 hp gas engine depends on various factors, including the type of vehicle or machinery it's powering, the load it carries, and the gearing used. For instance, in go-karts or small utility vehicles, a 6.5 hp engine can reach speeds of around 25 to 30 mph. In other applications, like lawn equipment or generators, speed may not be as relevant. Always refer to the manufacturer's specifications for precise performance details.
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 125cc varies between 65-85mph with a four stroke engine, and 65-up to 100mph with a two stroke
55-65
65 kph = 40.3891275 mph
65-70
about 65 to 70
About 65 mph
60 -65
130
all i know is that it doesnt go to fast
It depends on if it's a Chinese engine (slow) and not including Honda. If it's a real Japanese engine it should go around 70-85mph i have a 110cc engine that can hit around 60-65.
65 mph