On Mon, 15 Jun 2009 07:50:33 -0400, "Reginald P Smithers III, Esq."
wrote:

Mike Slater wrote:

"Eisboch" wrote in message
...

"Mike Slater" wrote in message
news:knfZl.742458$yE1.158636@attbi_s21...
I was cruising along in my 24ft pontoon boat when I got a real
surprise. Somebody please tell me how and why I could be running wide
open throttle at my normal 5500 rpm and then suddenly the boat took
off like a bat out of hell running at 8000 rpms and 25mph??? I never
touched the throttle. It has never run that fast ever. After about 2
minutes it went back down to 5500 and never did 8000 again. Its a
60hp mercury Bigfoot outboard. It has never done this before and I
don't even know how it could rev that high and go 25mph. Normal is
5500 and 17mph. What happened??

Mike


Is it a two stroke? I've often noticed on 2 stroke weed wackers or
chain saws that just as you are about to run out of fuel they speed
up. I think they start running lean due to air in the fuel line.
Is it possible you had a temporary air leak in a line and a similar
thing is happening?

Eisboch


Yep. Its a two-stroke. It really caught me by surprise. Next time I
will look at the clear inline gas filter down near the primer bulb to
see if its empty if and when it happens. It was only my second outing
this year so who knows what going on and was too shocked to think about
looking at the fuel situation. You know, it sounded great at 8000 revs.

Mike,
You may want to consider dropping back to a "cruising" rpm, instead of
running it WOT. Running the boat at WOT will shorten the life of the
engine considerably and use about 3 times the gas. For most boats, the
best gph or mpg is about 3400-3600 rpm. You shouldn't pick up much
incremental speed at WOT.

I ran mine at WOT yesterday, for the first time. Only did it for about
15 seconds. Man, that little boat is fast!
--
John H

"The democracy will cease to exist when you take away from those
who are willing to work and give to those who would not."
Thomas Jefferson

John H wrote:
On Mon, 15 Jun 2009 07:50:33 -0400, "Reginald P Smithers III, Esq."
wrote:

Mike Slater wrote:
"Eisboch" wrote in message
...
"Mike Slater" wrote in message
news:knfZl.742458$yE1.158636@attbi_s21...
I was cruising along in my 24ft pontoon boat when I got a real
surprise. Somebody please tell me how and why I could be running wide
open throttle at my normal 5500 rpm and then suddenly the boat took
off like a bat out of hell running at 8000 rpms and 25mph??? I never
touched the throttle. It has never run that fast ever. After about 2
minutes it went back down to 5500 and never did 8000 again. Its a
60hp mercury Bigfoot outboard. It has never done this before and I
don't even know how it could rev that high and go 25mph. Normal is
5500 and 17mph. What happened??

Mike

Is it a two stroke? I've often noticed on 2 stroke weed wackers or
chain saws that just as you are about to run out of fuel they speed
up. I think they start running lean due to air in the fuel line.
Is it possible you had a temporary air leak in a line and a similar
thing is happening?

Eisboch

Yep. Its a two-stroke. It really caught me by surprise. Next time I
will look at the clear inline gas filter down near the primer bulb to
see if its empty if and when it happens. It was only my second outing
this year so who knows what going on and was too shocked to think about
looking at the fuel situation. You know, it sounded great at 8000 revs.
Mike,
You may want to consider dropping back to a "cruising" rpm, instead of
running it WOT. Running the boat at WOT will shorten the life of the
engine considerably and use about 3 times the gas. For most boats, the
best gph or mpg is about 3400-3600 rpm. You shouldn't pick up much
incremental speed at WOT.

I ran mine at WOT yesterday, for the first time. Only did it for about
15 seconds. Man, that little boat is fast!
--
John H

"The democracy will cease to exist when you take away from those
who are willing to work and give to those who would not."
Thomas Jefferson

That sound of the wind whistling in your ears, was really the sound of
the engine sucking down the gas.

--
Reginald P. Smithers III, Esq.

This Newsgroup post is a natural product. The slight variations in
spelling and grammar enhance its individual character and beauty and in
no way are to be considered flaws or defects

On Jun 14, 9:05*pm, "Mike Slater" wrote:
"JR North" wrote in message

diainc...





Your prop hub is slipping. Get the prop rebuilt.
JR
BTDT got the T-shirt, too

Mike Slater wrote:

I was cruising along in my 24ft pontoon boat when I got a real surprise.
Somebody please tell me how and why I could be running wide open throttle
at my normal 5500 rpm and then suddenly the boat took off like a bat out
of hell running at 8000 rpms and 25mph??? *I never touched the throttle.
It has never run that fast ever. *After about 2 minutes it went back down
to 5500 and never did 8000 again. *Its a 60hp mercury Bigfoot outboard.
It has never done this before and I don't even know how it could rev that
high and go 25mph. *Normal is 5500 and 17mph. *What happened??

Mike

Nope. *The boat went from its normal 17mph WOT cruising speed up to 25mph in
an instant.

Mike-

The anchor you've been dragging around finally broke free. :-)

On Mon, 15 Jun 2009 10:00:18 -0400, "Reginald P Smithers III, Esq."
wrote:

John H wrote:
On Mon, 15 Jun 2009 07:50:33 -0400, "Reginald P Smithers III, Esq."
wrote:

Mike Slater wrote:
"Eisboch" wrote in message
...
"Mike Slater" wrote in message
news:knfZl.742458$yE1.158636@attbi_s21...
I was cruising along in my 24ft pontoon boat when I got a real
surprise. Somebody please tell me how and why I could be running wide
open throttle at my normal 5500 rpm and then suddenly the boat took
off like a bat out of hell running at 8000 rpms and 25mph??? I never
touched the throttle. It has never run that fast ever. After about 2
minutes it went back down to 5500 and never did 8000 again. Its a
60hp mercury Bigfoot outboard. It has never done this before and I
don't even know how it could rev that high and go 25mph. Normal is
5500 and 17mph. What happened??

Mike

Is it a two stroke? I've often noticed on 2 stroke weed wackers or
chain saws that just as you are about to run out of fuel they speed
up. I think they start running lean due to air in the fuel line.
Is it possible you had a temporary air leak in a line and a similar
thing is happening?

Eisboch

Yep. Its a two-stroke. It really caught me by surprise. Next time I
will look at the clear inline gas filter down near the primer bulb to
see if its empty if and when it happens. It was only my second outing
this year so who knows what going on and was too shocked to think about
looking at the fuel situation. You know, it sounded great at 8000 revs.
Mike,
You may want to consider dropping back to a "cruising" rpm, instead of
running it WOT. Running the boat at WOT will shorten the life of the
engine considerably and use about 3 times the gas. For most boats, the
best gph or mpg is about 3400-3600 rpm. You shouldn't pick up much
incremental speed at WOT.

I ran mine at WOT yesterday, for the first time. Only did it for about
15 seconds. Man, that little boat is fast!
--
John H

"The democracy will cease to exist when you take away from those
who are willing to work and give to those who would not."
Thomas Jefferson

That sound of the wind whistling in your ears, was really the sound of
the engine sucking down the gas.

That's another reason I usually hold it to 3400. It seems to be happy
there.
--
John H

"The democracy will cease to exist when you take away from those
who are willing to work and give to those who would not."
Thomas Jefferson

On Jun 14, 9:01*pm, JR North wrote:
Your prop hub is slipping. Get the prop rebuilt.
JR
BTDT got the T-shirt, too

If the prop was slipping it wouldn't go from the normal 17mph @ 5500
RPM to the 25mph at 8k.

"Reginald P Smithers III, Esq." wrote in
message ...
John H wrote:
On Mon, 15 Jun 2009 07:50:33 -0400, "Reginald P Smithers III, Esq."
wrote:

Mike Slater wrote:
"Eisboch" wrote in message
...
"Mike Slater" wrote in message
news:knfZl.742458$yE1.158636@attbi_s21...
I was cruising along in my 24ft pontoon boat when I got a real
surprise. Somebody please tell me how and why I could be running wide
open throttle at my normal 5500 rpm and then suddenly the boat took
off like a bat out of hell running at 8000 rpms and 25mph??? I never
touched the throttle. It has never run that fast ever. After about 2
minutes it went back down to 5500 and never did 8000 again. Its a
60hp mercury Bigfoot outboard. It has never done this before and I
don't even know how it could rev that high and go 25mph. Normal is
5500 and 17mph. What happened??

Mike

Is it a two stroke? I've often noticed on 2 stroke weed wackers or
chain saws that just as you are about to run out of fuel they speed
up. I think they start running lean due to air in the fuel line.
Is it possible you had a temporary air leak in a line and a similar
thing is happening?

Eisboch

Yep. Its a two-stroke. It really caught me by surprise. Next time I
will look at the clear inline gas filter down near the primer bulb to
see if its empty if and when it happens. It was only my second outing
this year so who knows what going on and was too shocked to think about
looking at the fuel situation. You know, it sounded great at 8000
revs.
Mike,
You may want to consider dropping back to a "cruising" rpm, instead of
running it WOT. Running the boat at WOT will shorten the life of the
engine considerably and use about 3 times the gas. For most boats, the
best gph or mpg is about 3400-3600 rpm. You shouldn't pick up much
incremental speed at WOT.

I ran mine at WOT yesterday, for the first time. Only did it for about
15 seconds. Man, that little boat is fast!
--
John H

"The democracy will cease to exist when you take away from those
who are willing to work and give to those who would not." Thomas
Jefferson

That sound of the wind whistling in your ears, was really the sound of the
engine sucking down the gas.

--
Reginald P. Smithers III, Esq.

This Newsgroup post is a natural product. The slight variations in
spelling and grammar enhance its individual character and beauty and in no
way are to be considered flaws or defects

That is why I have the sticker: My carbon footprint is bigger than yours.

Calif Bill wrote:
"Reginald P Smithers III, Esq." wrote in
message ...
John H wrote:
On Mon, 15 Jun 2009 07:50:33 -0400, "Reginald P Smithers III, Esq."
wrote:

Mike Slater wrote:
"Eisboch" wrote in message
...
"Mike Slater" wrote in message
news:knfZl.742458$yE1.158636@attbi_s21...
I was cruising along in my 24ft pontoon boat when I got a real
surprise. Somebody please tell me how and why I could be running wide
open throttle at my normal 5500 rpm and then suddenly the boat took
off like a bat out of hell running at 8000 rpms and 25mph??? I never
touched the throttle. It has never run that fast ever. After about 2
minutes it went back down to 5500 and never did 8000 again. Its a
60hp mercury Bigfoot outboard. It has never done this before and I
don't even know how it could rev that high and go 25mph. Normal is
5500 and 17mph. What happened??

Mike
Is it a two stroke? I've often noticed on 2 stroke weed wackers or
chain saws that just as you are about to run out of fuel they speed
up. I think they start running lean due to air in the fuel line.
Is it possible you had a temporary air leak in a line and a similar
thing is happening?

Eisboch

Yep. Its a two-stroke. It really caught me by surprise. Next time I
will look at the clear inline gas filter down near the primer bulb to
see if its empty if and when it happens. It was only my second outing
this year so who knows what going on and was too shocked to think about
looking at the fuel situation. You know, it sounded great at 8000
revs.
Mike,
You may want to consider dropping back to a "cruising" rpm, instead of
running it WOT. Running the boat at WOT will shorten the life of the
engine considerably and use about 3 times the gas. For most boats, the
best gph or mpg is about 3400-3600 rpm. You shouldn't pick up much
incremental speed at WOT.
I ran mine at WOT yesterday, for the first time. Only did it for about
15 seconds. Man, that little boat is fast!
--
John H

"The democracy will cease to exist when you take away from those
who are willing to work and give to those who would not." Thomas
Jefferson
That sound of the wind whistling in your ears, was really the sound of the
engine sucking down the gas.

--
Reginald P. Smithers III, Esq.

This Newsgroup post is a natural product. The slight variations in
spelling and grammar enhance its individual character and beauty and in no
way are to be considered flaws or defects

That is why I have the sticker: My carbon footprint is bigger than yours.



Why are you dangling that bait in front of Harry?

--
Reginald P. Smithers III, Esq.

This Newsgroup post is a natural product. The slight variations in
spelling and grammar enhance its individual character and beauty and in
no way are to be considered flaws or defects

"den" wrote in message
...
NO WAY is the prop hub slipping. That would be 8000 rpms and ducks
swimming by you.
I vote for leaning out. BIG bubble in the fuel line, or the kid hooked
up a nitro bottle!
Den
48YF EAGLE

Nope. The boat went from its normal 17mph WOT cruising speed up to 25mph
in
an instant.

Mike

Oh yeah... I did kick the nitrous in when it happened.... kidding!
Anyway, I did get the clear message not to let it run that fast if I want
to have a motor when I get back to the dock. Thanks.

Didn't read the post right. The 'normal' speed was ambiguously unclear
and out of place in the text.
JR


Loogypicker wrote:

On Jun 14, 9:01 pm, JR North wrote:

Your prop hub is slipping. Get the prop rebuilt.
JR
BTDT got the T-shirt, too


If the prop was slipping it wouldn't go from the normal 17mph @ 5500
RPM to the 25mph at 8k.

--
--------------------------------------------------------------
Home Page: http://www.seanet.com/~jasonrnorth

"Reginald P Smithers III, Esq." wrote in
message ...
Calif Bill wrote:
"Reginald P Smithers III, Esq." wrote
in message ...
John H wrote:
On Mon, 15 Jun 2009 07:50:33 -0400, "Reginald P Smithers III, Esq."
wrote:

Mike Slater wrote:
"Eisboch" wrote in message
...
"Mike Slater" wrote in message
news:knfZl.742458$yE1.158636@attbi_s21...
I was cruising along in my 24ft pontoon boat when I got a real
surprise. Somebody please tell me how and why I could be running
wide open throttle at my normal 5500 rpm and then suddenly the boat
took off like a bat out of hell running at 8000 rpms and 25mph???
I never touched the throttle. It has never run that fast ever.
After about 2 minutes it went back down to 5500 and never did 8000
again. Its a 60hp mercury Bigfoot outboard. It has never done this
before and I don't even know how it could rev that high and go
25mph. Normal is 5500 and 17mph. What happened??

Mike
Is it a two stroke? I've often noticed on 2 stroke weed wackers or
chain saws that just as you are about to run out of fuel they speed
up. I think they start running lean due to air in the fuel line.
Is it possible you had a temporary air leak in a line and a similar
thing is happening?

Eisboch

Yep. Its a two-stroke. It really caught me by surprise. Next time
I will look at the clear inline gas filter down near the primer bulb
to see if its empty if and when it happens. It was only my second
outing this year so who knows what going on and was too shocked to
think about looking at the fuel situation. You know, it sounded
great at 8000 revs.
Mike,
You may want to consider dropping back to a "cruising" rpm, instead of
running it WOT. Running the boat at WOT will shorten the life of the
engine considerably and use about 3 times the gas. For most boats,
the best gph or mpg is about 3400-3600 rpm. You shouldn't pick up
much incremental speed at WOT.
I ran mine at WOT yesterday, for the first time. Only did it for about
15 seconds. Man, that little boat is fast!
--
John H

"The democracy will cease to exist when you take away from those
who are willing to work and give to those who would not." Thomas
Jefferson
That sound of the wind whistling in your ears, was really the sound of
the engine sucking down the gas.

--
Reginald P. Smithers III, Esq.

This Newsgroup post is a natural product. The slight variations in
spelling and grammar enhance its individual character and beauty and in
no way are to be considered flaws or defects

That is why I have the sticker: My carbon footprint is bigger than yours.

Why are you dangling that bait in front of Harry?

--
Reginald P. Smithers III, Esq.

This Newsgroup post is a natural product. The slight variations in
spelling and grammar enhance its individual character and beauty and in no
way are to be considered flaws or defects

Just evil at times.