I have a Merc 60 Bigfoot, 3-cyl outboard fitted with NGK BP8H-N-10 plugs. I
think my plugs look too "wet" much like the third one shown in the photo on
the NGK website.
http://www.ngksparkplugs.com/techinf...200&country=US

Although the motor runs pretty smoothly. I running with a 130 degree
thermostat. What should I look at adjusting?

Chuck

"Chuck" wrote in news:5TSck.244293$yE1.55866@attbi_s21:

What should I look at adjusting?



NOTHING! That's LUBE OIL coming up from the 2-stroke crankcase to keep the
bearings lubed up! Why screw around with something that's running great
with good lubrication?!

Why does everyone have to tear apart perfectly good working things and
screw it all up?!

If it's a 4-stroke, you have bad rings or valve seats.....my condolences.

A proper 2-stroke should be all gooey right to the end of the exhaust
outlet. If it's not, dismantle the damned autoinjection used to wear out
new motors fast so they can sell you more and premix the gas to 25:1 with
OIL COMPANY BRAND NAME TC-W3, not the cheap crap from engine manufacturers
the dealer sells! Engine manufacturers don't have oil refineries. Who
knows who made it....lowest bidder??

When I sold a 150hp 6-cyl Merc Sport Jet with 3 deuces carbs on it, having
run its whole life on 25:1, you could still see the hone marks on the
cylinder walls and every bearing in the crankcase was as tight as new....
(c;...hundreds of hours later after running wide open all that time.

100:1 is SUICIDE!

BTW - AMSOIL IS NOT AN OIL COMPANY!

wrote in
:

On Wed, 09 Jul 2008 02:33:17 +0000, Larry wrote:

When I sold a 150hp 6-cyl Merc Sport Jet with 3 deuces carbs on it,
having run its whole life on 25:1, you could still see the hone marks
on the cylinder walls and every bearing in the crankcase was as tight
as new.... (c;...hundreds of hours later after running wide open all
that time.

If it was running so well why was anyone looking at bearings and
cylinder walls?


I have a borescope and the guy who wanted to buy it wanted to see?

Will that do?

On Jul 8, 7:37*pm, "Chuck" wrote:
I have a Merc 60 Bigfoot, 3-cyl outboard fitted with NGK BP8H-N-10 plugs. *I
think my plugs look too "wet" much like the third one shown in the photo on
the NGK website.http://www.ngksparkplugs.com/techinf...aqread2.asp?na...

Although the motor runs pretty smoothly. *I running with a 130 degree
thermostat. What should I look at adjusting?

Chuck

Looks to me that it may just be loading up, like idling too long
before you shut down. Take the thing out, get it up to temp and make a
run with it, then shut it down and look at the plugs. If they are
still wet after making an at speed run, you may have a too rich fuel/
oil ratio, or a carb problem.

wrote in message
...
On Tue, 08 Jul 2008 23:37:37 GMT, "Chuck" wrote:

I have a Merc 60 Bigfoot, 3-cyl outboard fitted with NGK BP8H-N-10 plugs.
I
think my plugs look too "wet" much like the third one shown in the photo
on
the NGK website.
http://www.ngksparkplugs.com/techinf...200&country=US

Although the motor runs pretty smoothly. I running with a 130 degree
thermostat. What should I look at adjusting?

Chuck


Before I got crazy and tried to "fix" a motor that was running well I
would ask, how far did you have to idle back to the ramp before you
pulled these plugs?
If this is running well other the entire range I might try a little
hotter plug, if it is loading up when you idle you could play with the
idle screws a little but be careful you don't break it.

I see your point about the idling...... it took me at least 10 minutes
running at idle rpm. I never thought of that. BTW, this is an automatic
oil injection system and so I cant adjust the fuel/oil mixture ratio.

"Larry" wrote in message
...
"Chuck" wrote in news:5TSck.244293$yE1.55866@attbi_s21:

What should I look at adjusting?



NOTHING! That's LUBE OIL coming up from the 2-stroke crankcase to keep
the
bearings lubed up! Why screw around with something that's running great
with good lubrication?!

Why does everyone have to tear apart perfectly good working things and
screw it all up?!

If it's a 4-stroke, you have bad rings or valve seats.....my condolences.

A proper 2-stroke should be all gooey right to the end of the exhaust
outlet. If it's not, dismantle the damned autoinjection used to wear out
new motors fast so they can sell you more and premix the gas to 25:1 with
OIL COMPANY BRAND NAME TC-W3, not the cheap crap from engine manufacturers
the dealer sells! Engine manufacturers don't have oil refineries. Who
knows who made it....lowest bidder??

When I sold a 150hp 6-cyl Merc Sport Jet with 3 deuces carbs on it, having
run its whole life on 25:1, you could still see the hone marks on the
cylinder walls and every bearing in the crankcase was as tight as new....
(c;...hundreds of hours later after running wide open all that time.

100:1 is SUICIDE!

BTW - AMSOIL IS NOT AN OIL COMPANY!


The only reason I checked the plugs is because the responsiveness felt a bit
sluggish on the night of the 4th. It didn't have the normal top-end like it
did last season. At least I feel comfortable that the plugs are supposed to
look that way now "all gooey." Thanks

"Chuck" wrote in message
news:v_2dk.190760$TT4.166948@attbi_s22...

wrote in message
...
On Tue, 08 Jul 2008 23:37:37 GMT, "Chuck" wrote:

I have a Merc 60 Bigfoot, 3-cyl outboard fitted with NGK BP8H-N-10 plugs.
I
think my plugs look too "wet" much like the third one shown in the photo
on
the NGK website.
http://www.ngksparkplugs.com/techinf...200&country=US

Although the motor runs pretty smoothly. I running with a 130 degree
thermostat. What should I look at adjusting?

Chuck


Before I got crazy and tried to "fix" a motor that was running well I
would ask, how far did you have to idle back to the ramp before you
pulled these plugs?
If this is running well other the entire range I might try a little
hotter plug, if it is loading up when you idle you could play with the
idle screws a little but be careful you don't break it.

I see your point about the idling...... it took me at least 10 minutes
running at idle rpm. I never thought of that. BTW, this is an automatic
oil injection system and so I cant adjust the fuel/oil mixture ratio.
To check the plugs you need to run at a cruising speed and then shutdown,
pull the plugs and take a look at them. Idling around for anytime is going
to load them up on a 2 stroke.

"jamesgangnc" wrote in message
m...
"Chuck" wrote in message
news:v_2dk.190760$TT4.166948@attbi_s22...

wrote in message
...
On Tue, 08 Jul 2008 23:37:37 GMT, "Chuck" wrote:

I have a Merc 60 Bigfoot, 3-cyl outboard fitted with NGK BP8H-N-10
plugs. I
think my plugs look too "wet" much like the third one shown in the photo
on
the NGK website.
http://www.ngksparkplugs.com/techinf...200&country=US

Although the motor runs pretty smoothly. I running with a 130 degree
thermostat. What should I look at adjusting?

Chuck


Before I got crazy and tried to "fix" a motor that was running well I
would ask, how far did you have to idle back to the ramp before you
pulled these plugs?
If this is running well other the entire range I might try a little
hotter plug, if it is loading up when you idle you could play with the
idle screws a little but be careful you don't break it.

I see your point about the idling...... it took me at least 10 minutes
running at idle rpm. I never thought of that. BTW, this is an automatic
oil injection system and so I cant adjust the fuel/oil mixture ratio.
To check the plugs you need to run at a cruising speed and then shutdown,
pull the plugs and take a look at them. Idling around for anytime is
going to load them up on a 2 stroke.

Excellent. That's what I didn't know. I am going to run her a bit and then
refill with fresh fuel which should get me back to running like last year.
Thanks.

On Wed, 9 Jul 2008 09:37:26 -0400, "jamesgangnc"
wrote:


To check the plugs you need to run at a cruising speed and then shutdown,
pull the plugs and take a look at them. Idling around for anytime is going
to load them up on a 2 stroke.

Any caution here about letting the heads cool down?
They're aluminum, right?

--Vic

On Wed, 09 Jul 2008 20:59:28 -0400, wrote:

On Wed, 09 Jul 2008 11:13:56 -0500, Vic Smith
wrote:

To check the plugs you need to run at a cruising speed and then shutdown,
pull the plugs and take a look at them. Idling around for anytime is going
to load them up on a 2 stroke.

Any caution here about letting the heads cool down?
They're aluminum, right?

--

Bass boats run flat out, then shut down fast all the time. The heads
seem fine

I meant to say pulling plugs from a hot aluminum head.
I stretched some threads doing that once.
Thereafter there was no more screwing them in easily by hand.
Might be a head can cool faster than a plug too.
In any case it's better to let the whole shebang cool off to near
ambient, which is what I always do now.

--Vic