No.... but it WILL damage the waterpump, which can't run dry - ever.

Start in on the trailer but in the water.

-W

"goldspoon" wrote in message
oups.com...
Have a Yamaha 150 VMax. Before leaving home with the engine not in
water, I like to turn the key until the engine starts and then quickly
turn it off, just to be sure that it is ready to go. Will this damage
my motor?