BoatBanter.com - View Single Post - Yamaha F150 break-in

DK

wrote:
I am about to purchase a Hydra-Sports 202DC with a Yamaha F150 4
stroke.
I have read the beak-in procedure.
1hr at 2000 rpm , 1hr at 3000 and the next 8 hrs no full throttle for
more than 5 mins.

My question is; When pre-purchase water testing, how much or little
damage is sustained while the sales guy or I run a new motor at full
throttle for a few minutes to see full speed and other handling
characteristics of the boat

None. A few short WOT runs are in order to make sure the motor was
mounted at the right height and the correct prop was installed.

When you reference 2000 and 3000 rpms, you are talking about the max,
right? You should vary your speed during the break in process.