Is engine protected while doing a wheelie?

[yamablaster24]

I was doing wheelies on my stock 400ex today and i am riding them for about 1-2 minutes and iwas wondering if this is okay for the motor. I mean, is the oil pump and cooler made to lubricate motor while doing 80 degree wheelie? Also I can eat a piece of pizza and ride a wheelie. I can also hold front bumper and ride a wheelie now.....stock 400ex is so easy to wheelie compared to my 400ex

[NacsMXer]

The oil pump is still working and oil is being flung up to the head when you are doing a wheelie, I don't see how it should hurt it.

And I agree my 400 stock was much easier to wheelie than it is now. It seems because the ZPS shocks "soak up" the wheelie and by the time you're at the balance point it's already revved out. It's a big plus for racing because it helps keep the front end planted.