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-   -   Merc 1150 runs really sweet, but have to squirt gas in carbs to start...help! (https://www.boatbanter.com/general/79977-merc-1150-runs-really-sweet-but-have-squirt-gas-carbs-start-help.html)

[email protected] April 17th 07 10:31 PM

Merc 1150 runs really sweet, but have to squirt gas in carbs to start...help!
 


I have a 1976 6-cyl inline 115 hp merc outboard that refuses to start
without a squirt of gas in any one of its carbs. We have had the
engine rebuilt with new pistions and rings. The fuel pump is working
fine. We have taken it to a local dealer/repair shop, and they have
informed us that they can't fix the problem; though, they still
charged us 300 some odd dollars. Does anyone out there have any ideas
that might be able to help? Thanks!

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Clams Canino April 17th 07 11:13 PM

Merc 1150 runs really sweet, but have to squirt gas in carbs to start...help!
 
Starting procedure is likely the problem.

You gotta nearly flood them to start them - SOP.

Make sure the motor is trimmed all the way in (down).
Make sure the warm-up lever or fast idle thingie is working. Pump the ball
a little harder than needed - to force a bit of gas past the needle seats.
Advance the warm up lever all the way.

Crank the engine with the choke applied the *entire* time you are cranking.
Once it finally catches, back off on the warm-up lever and warm it up at
2000 or less. DON'T let it rev up hight in neutral after it catched.

-W

wrote in message
...


I have a 1976 6-cyl inline 115 hp merc outboard that refuses to start
without a squirt of gas in any one of its carbs. We have had the
engine rebuilt with new pistions and rings. The fuel pump is working
fine. We have taken it to a local dealer/repair shop, and they have
informed us that they can't fix the problem; though, they still
charged us 300 some odd dollars. Does anyone out there have any ideas
that might be able to help? Thanks!

--
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Dave Brown April 18th 07 01:14 AM

Merc 1150 runs really sweet, but have to squirt gas in carbsto start...help!
 
Clams Canino wrote:

Starting procedure is likely the problem.
You gotta nearly flood them to start them - SOP.


As crazy as this sounds, it is exactly the way to start these 'towers of
power". The problem is the size of the holes in the choke plates and one
of these days I'm gonna solder them shut to see if that doesn't cure it
on this (and many other older) Merc models.



--
Regards,
Dave Brown
Brown's Marina Ltd
http://brownsmarina.com/

Clams Canino April 18th 07 01:36 AM

Merc 1150 runs really sweet, but have to squirt gas in carbs to start...help!
 

"Dave Brown" wrote in message
news:m4SdnQRyRYdB_7jbnZ2dnUVZ_rDinZ2d@wtccommunica tions.ca...
Clams Canino wrote:

Starting procedure is likely the problem.
You gotta nearly flood them to start them - SOP.


As crazy as this sounds, it is exactly the way to start these 'towers of
power". The problem is the size of the holes in the choke plates and one
of these days I'm gonna solder them shut to see if that doesn't cure it
on this (and many other older) Merc models.


Choke plates are plastic on the towers. (and I think solid)

The throttle butterflys have holes.

-W



[email protected] April 18th 07 01:50 AM

Merc 1150 runs really sweet, but have to squirt gas in carbs to start...help!
 
On Wed, 18 Apr 2007 00:36:11 GMT, "Clams Canino"
wrote:


"Dave Brown" wrote in message
news:m4SdnQRyRYdB_7jbnZ2dnUVZ_rDinZ2d@wtccommunic ations.ca...
Clams Canino wrote:

Starting procedure is likely the problem.
You gotta nearly flood them to start them - SOP.


As crazy as this sounds, it is exactly the way to start these 'towers of
power". The problem is the size of the holes in the choke plates and one
of these days I'm gonna solder them shut to see if that doesn't cure it
on this (and many other older) Merc models.


Choke plates are plastic on the towers. (and I think solid)

The throttle butterflys have holes.

-W


Hey, thanks, guys. I'll pass this along to my Dad. He has
the boat down on Johnathon Creek. He says that the engine will start
within an hour after having run it for a bit; but, it won't start
cold. The folks at the repair shop were clueless (go figure).

Regards

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totem April 18th 07 02:05 AM

Merc 1150 runs really sweet, but have to squirt gas in carbsto start...help!
 
wrote:
On Wed, 18 Apr 2007 00:36:11 GMT, "Clams Canino"
wrote:

"Dave Brown" wrote in message
news:m4SdnQRyRYdB_7jbnZ2dnUVZ_rDinZ2d@wtccommunica tions.ca...
Clams Canino wrote:

Starting procedure is likely the problem.
You gotta nearly flood them to start them - SOP.
As crazy as this sounds, it is exactly the way to start these 'towers of
power". The problem is the size of the holes in the choke plates and one
of these days I'm gonna solder them shut to see if that doesn't cure it
on this (and many other older) Merc models.

Choke plates are plastic on the towers. (and I think solid)

The throttle butterflys have holes.

-W


Hey, thanks, guys. I'll pass this along to my Dad. He has
the boat down on Johnathon Creek. He says that the engine will start
within an hour after having run it for a bit; but, it won't start
cold. The folks at the repair shop were clueless (go figure).

Regards

Look for pin holes or other air leaks into the fuel line, primer bulb,

etc. It sounds like the fuel is draining back down the line after
sitting for a while. Ordinarily, you still have to choke and sometimes
prime, by pumping the bulb, on a cold carburated engine.

[email protected] April 18th 07 03:50 AM

Merc 1150 runs really sweet, but have to squirt gas in carbs to start...help!
 
On Tue, 17 Apr 2007 20:05:30 -0500, totem wrote:

wrote:
On Wed, 18 Apr 2007 00:36:11 GMT, "Clams Canino"
wrote:

"Dave Brown" wrote in message
news:m4SdnQRyRYdB_7jbnZ2dnUVZ_rDinZ2d@wtccommunica tions.ca...
Clams Canino wrote:

Starting procedure is likely the problem.
You gotta nearly flood them to start them - SOP.
As crazy as this sounds, it is exactly the way to start these 'towers of
power". The problem is the size of the holes in the choke plates and one
of these days I'm gonna solder them shut to see if that doesn't cure it
on this (and many other older) Merc models.
Choke plates are plastic on the towers. (and I think solid)

The throttle butterflys have holes.

-W


Hey, thanks, guys. I'll pass this along to my Dad. He has
the boat down on Johnathon Creek. He says that the engine will start
within an hour after having run it for a bit; but, it won't start
cold. The folks at the repair shop were clueless (go figure).

Regards

Look for pin holes or other air leaks into the fuel line, primer bulb,

etc. It sounds like the fuel is draining back down the line after
sitting for a while. Ordinarily, you still have to choke and sometimes
prime, by pumping the bulb, on a cold carburated engine.


I'll pass that on. I'm in northern Illinois this week, while
he gets to pass the time away on Ken Lake fishing for crappie. We
examined the fuel pump and lines about 3 weeks ago before we took the
boat and outboard to the Sportsman Boat works on Rt 68, right on
Johnathon Creek. We didn't notice any leaks at that time. We may not
have examined the fuel system well enough, though. I would have
thought that the folks at Sportsman would have considered that, too.
Before that we had the boat at the Swap Market repair shop in Paducah,
and the folks there thought they had it repaired. (Actually the
proprietor of the place in Paducah did correct the timing for us,
among other things.)

Thanks for the tip, though!

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Clams Canino April 18th 07 05:19 AM

Merc 1150 runs really sweet, but have to squirt gas in carbs to start...help!
 

wrote in message

I would have
thought that the folks at Sportsman would have considered that, too.
Before that we had the boat at the Swap Market repair shop in Paducah,
and the folks there thought they had it repaired. (Actually the
proprietor of the place in Paducah did correct the timing for us,
among other things.)


Let's hope that he "corrected" the timing so that the max advance did not
exceed 21 degrees.
If he "corrected it" to the 23 or 27 degrees on the facotry 70's timing
stickers - todays gas will kill it (dead) via detonation damage. 21 degrees
is now "DA RULZ" for the Towers of Power.

-W (PS they cool off pretty quick - "cold" start is relative)






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