View Single Post
  #15   Report Post  
posted to rec.boats
Calif Bill Calif Bill is offline
external usenet poster
 
First recorded activity by BoatBanter: Jul 2006
Posts: 4,727
Default Need Info on Yamaha 8hp Outboard When It is Fully Tilted Up


"basskisser" wrote in message
ups.com...

Calif Bill wrote:
wrote in message
oups.com...
I would like to know some info about Yamaha 8hp High Thrust 4-stroke
outboard motor when it is fully tilted up.

I am planning to get that Yamaha motor as a kicker for trolling and
backup. Unfortunately, I cannot mount it directly on the transom of my
boat. The reason is that the transom only has one opening for the main
motor. The boat has a container in each side of the opening. I cannot
mount the motor over the container because the container is a flimsy
structure. I will have to somehow mount the motor at the back of the
transom.

I could have installed a manual-motor-lift (such as the one from
Garelick); but I am looking for the version of Yamaha 8hp outboard
that has a power-trim function. This means instead of having the
outboard lifting straight up and down, I will have it tilting up and
down.

Seem like the best way is to install a motor bracket behind the
transom, mount the 8hp motor on the motor bracket, and has the 8hp
motor kind of sticking out. The question is how far that I should have
it sticking up. If it is not sticking out far enough, the cowl of the
motor will hit the container that I mentioned above when the motor is
fully tilted up. If it is sticking out to far, I am afraid that it
will add too much stress on the transom. I want the motor bracket
sticking out just far enough not to hit the container when the motor is
fully tilted up.

My questions a
1. What is the distance between the far end of the cowl and
the motor mount when the motor is fully tilted up?
2. Any downside of doing this?
3. Any better idea?

Thanks in advance for any info.

Jay Chan


Great motor. Mine is mounted maybe 12" back on a solid to the boat
bracket.
You have to look at the shaft length you need. I have the extra long
25",
which allows me to mount the motor bracket higher off the water, and when
the motor is tilted the foot is out of the water. Your dealer should
have
some required measurements.


Are you going to go get some crabs, Bill?


When the ocean lays down a little. Sunday was a surprise as was calm, but
Saturday had wind and swells to 12'-14'. I restrict my boating to max 8'
swells and go early to avoid the 2-3' wind seas. Looking like Monday is
going to be the day to get Thanksgiving crab.


NWS Forecast
FZUS56 KMTR 151633
CWFMTR

COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE SAN FRANCISCO CA
833 AM PST WED NOV 15 2006

POINT ARENA TO POINT PIEDRAS BLANCAS AND OUT 60 NM INCLUDING THE SAN
FRANCISCO BAY AREA AND MONTEREY BAY

PZZ500-152330-
833 AM PST WED NOV 15 2006

..SYNOPSIS FOR THE CENTRAL CALIFORNIA COAST AND BAYS INCLUDING
MONTEREY BAY...GULF OF THE FARALLONES...AND CORDELL BANK NATIONAL
MARINE SANCTUARIES...

WINDS OVER THE COASTAL WATERS WILL REMAIN OUT OF THE SOUTH TO
SOUTHWEST TODAY AS A FRONTAL BOUNDARY APPROACHES FROM THE
NORTHWEST TONIGHT. THIS FRONTAL BOUNDARY WILL BRING A CHANCE OF
RAIN ACROSS THE NORTH AND A CHANGE IN WIND DIRECTION TO A MORE
NORTHWEST FLOW ON THURSDAY.


--------------------------------------------------------------------------------

PZZ550-570-152330-
/O.ROU.KMTR.MA.F.0000.000000T0000Z-000000T0000Z/
POINT ARENA TO PIGEON POINT TO 20 NM-
POINT ARENA TO PIGEON POINT 20 TO 60 NM OFFSHORE-
833 AM PST WED NOV 15 2006

TODAY
NW WINDS 5 TO 15 KT. WIND WAVES 1 TO 3 FT. NW SWELL 5 TO
7 FT AT 10 SECONDS.

TONIGHT
S WINDS 5 TO 15 KT. WIND WAVES 1 TO 3 FT. NW SWELL
4 TO 6 FT AT 10 SECONDS. RAIN LIKELY.

THU
S WINDS 5 TO 15 KT. WIND WAVES 1 TO 3 FT. NW SWELL 7 TO 9
FT AT 10 SECONDS. CHANCE OF RAIN.

THU NIGHT
SW WINDS 5 TO 10 KT. WIND WAVES 1 TO 2 FT. W SWELL 7
TO 9 FT. SLIGHT CHANCE OF SHOWERS.

FRI
W WINDS 5 TO 15 KT. WIND WAVES 1 TO 3 FT. NW SWELL 7 TO 9 FT.
SLIGHT CHANCE OF SHOWERS.

SAT
NW WINDS 5 TO 15 KT. WIND WAVES 1 TO 3 FT. NW SWELL 6 TO 8 FT.

SUN
W WINDS 5 TO 15 KT. WIND WAVES 1 TO 3 FT. NW SWELL 6 TO 8 FT.
SLIGHT CHANCE OF RAIN.


...SAN FRANCISCO BAR/FOURFATHOM BANK FORECAST
...

IN THE DEEP WATER CHANNEL AND ACROSS THE BAR...NORTHWEST SWELL 3
TO 5 FEET OCCASIONALLY TO 6 FEET DURING MAXIMUM EBB CURRENT OF
1.6 KT AT 12:09 PM AND 1.3 KT AT 11:20 PM TONIGHT.


--------------------------------------------------------------------------------

PZZ555-575-152330-
/O.ROU.KMTR.MA.F.0000.000000T0000Z-000000T0000Z/
PIGEON POINT TO POINT PIEDRAS BLANCAS TO 20 NM-
PIGEON POINT TO POINT PIEDRAS BLANCAS 20 TO 60 NM OFFSHORE-
833 AM PST WED NOV 15 2006

TODAY
NW WINDS 5 TO 15 KT. WIND WAVES 1 TO 3 FT. NW SWELL 5 TO
7 FT AT 11 SECONDS.

TONIGHT
NW WINDS 5 TO 15 KT. WIND WAVES 1 TO 3 FT. NW SWELL
4 TO 6 FT AT 10 SECONDS. SLIGHT CHANCE OF RAIN.

THU
NW WINDS 5 TO 15 KT. WIND WAVES 1 TO 3 FT. NW SWELL 6 TO
8 FT AT 10 SECONDS. SLIGHT CHANCE OF RAIN.

THU NIGHT
NW WINDS 5 TO 15 KT. WIND WAVES 1 TO 3 FT. NW SWELL
7 TO 9 FT. SLIGHT CHANCE OF SHOWERS.

FRI
NW WINDS 5 TO 15 KT. WIND WAVES 1 TO 3 FT. NW SWELL 7 TO
9 FT. SLIGHT CHANCE OF SHOWERS.

SAT
NW WINDS 10 TO 20 KT. WIND WAVES 2 TO 4 FT. NW SWELL 6 TO 8 FT.

SUN
NW WINDS 5 TO 15 KT. WIND WAVES 1 TO 3 FT. NW SWELL 6 TO 8 FT.
SLIGHT CHANCE OF RAIN.

The guys with bigger boats have been getting plugged traps. 10-18 crab in a
trap. But commercial season opens today, so the pressure will reduce that.
I run 5 traps. Abnd limit is 10 per person.