Actually HP can only be estimated . he HP depends on a lot of factors about the motor.
The 176cc engines are about 5 hp; 160cc =3-4 hp 176 (foreign) 4-5 hp 205cc= 5-7 hp 250cc= 8 hp 350cc=11-13 hp
how much copper in 250 hp motor
250cc
210 hp. 210 hp.
About 1/2 hp
On a exmark lazer z e-series 250 cc motor
68 hp
Rated for 14 HP
195hp + you can get tuned this motor
weight 120 hp jonhson
it has 160 hp ..