Around the beginning of the 2003 sailing season, I decided to upgrade
my older Honda 7.5hp to something more recent.
At the time, Yamaha was running a promotion, and I had heard good things
about the 8hp and 9.9hp Yamaha high-thrust motors. However, my queries
to two different Yamaha dealers in the Toronto area were met with, at
best, indifference. Neither seemed interested in actually selling me
the motor I was looking for, or even in investigating whether a motor
meeting my requirements was available for sale in Canada.
What I was looking for:
- 8 hp
- extra-long (25") shaft
- high-thrust prop
- no electric start
- no remote control
I found what I was looking for with the assistance of Pisces Marine
in Oakville, ON. They
sourced a Honda motor meeting all my specs except the propellor. However, I
got a deal on the high thrust prop by trading in the regular prop before
All that remained was to actually install the motor, which had to be done
on the water. It can be done, but with a 106-lb motor, this is much
easier and less risky if done on land.
Preparing to remove the old motor:
The boat, without motor:
We used the marina cart to carry the motor down the dock:
As you can see, the new motor is BIG. I'm 5'8" tall. The motor isn't much
less. Many thanks to my friend Peter for helping with the installation!
We had backed the boat into the slip adjacent to mine to facilitate the
installation. We now walked the boat back around the finger dock.
Photo 3 is one way of checking mast rake, but it's hardly convenient.
Three photos taken at haulout, October 2003. You can see how far below
the waterline the motor extends. This motor has never caught air, even
in steep chop. Photo 4 shows the huge surface area of the
propellor. The prop size is 10" diameter x 7" pitch.
These photos, taken at haulout in October 2005, show the motor with the
bracket in the fully raised position. The prop is still completely
In fact, at the 2005 launch, I was distracted while starting the motor,
and forgot to lower the bracket. The motor started, and there was cooling
water flowing. However, it sounded funny, making some gurgling noises.
That's when I realized I had forgotten to lower the motor. Even in the
fully raised position, the water intake was still mostly under water.
For comparison, two photos of the old motor with the old prop (yellow) and
high-thrust prop (black).
© 2018 Melissa Goudeseune