lets get this right
4strokes dont have more torque
they just make the engine bigger to give it a torque advantage over the smaller two stroke
Yes if you tio a 4 stroke upside down then oil will go every where and sit u in the rocker gear or in the hollow of the pistons
sure you can try and put some fancy valaving in there to try and stop it but you cant overcome gravity
you can use forced induction on a four joke to giveit more hp but can you say thermal shock when the water hits the hot turbo housing
and do you want the turbo lag in the surf
i have seen some one try and race a hydro in 1 meter surf , it was not pretty
If some one convinces you that a four stroke is good in the surf then i have some land i wish to sell you , going cheap as well