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!

"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

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.

"Chuck" wrote in message
news:5TSck.244293$yE1.55866@attbi_s21...
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
Doesn't anybody want to know what the problem turned out to be?

scroll down................


down more..............................


Remember its a 60hp motor on a 24ft pontoon party boat. On the fourth of
July I had 14 people on it and THAT was the reason it felt so sluggish and
caused me to check the plugs, which is when I noticed they were "wet." When
I have a few people on the boat it cruises easily at twenty knots.
Yeah.... don't anybody say it......... go ahead..........

On Mon, 11 Aug 2008 02:10:55 GMT, "Chuck" wrote:


"Chuck" wrote in message
news:5TSck.244293$yE1.55866@attbi_s21...
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
Doesn't anybody want to know what the problem turned out to be?

scroll down................


down more..............................


Remember its a 60hp motor on a 24ft pontoon party boat. On the fourth of
July I had 14 people on it and THAT was the reason it felt so sluggish and
caused me to check the plugs, which is when I noticed they were "wet." When
I have a few people on the boat it cruises easily at twenty knots.
Yeah.... don't anybody say it......... go ahead..........


Ah well: live and learn.... matching prop pitch to desired cruise
speed is almost a black-art....

Brian W

On Sun, 10 Aug 2008 21:15:18 -0500, Brian Whatcott
wrote:

matching prop pitch to desired cruise
speed is almost a black-art....

I though you gave it enough pitch just reach maximum rated RPM at WOT.

Casady

On 2008-08-12 19:18:41 -0400, (Richard
Casady) said:

On Sun, 10 Aug 2008 21:15:18 -0500, Brian Whatcott
wrote:

matching prop pitch to desired cruise speed is almost a black-art....

I though you gave it enough pitch just reach maximum rated RPM at WOT.

AT the speed WOT can give with the engine, prop, weight, drag ...

I had a powerboat friend that switched props depending on whether they
were skiing or traveling.

--
Jere Lull
Xan-à-Deux -- Tanzer 28 #4 out of Tolchester, MD
Xan's pages: http://web.mac.com/jerelull/iWeb/Xan/
Our BVI trips & tips: http://homepage.mac.com/jerelull/BVI/

On Tue, 12 Aug 2008 23:18:41 GMT, (Richard
Casady) wrote:

On Sun, 10 Aug 2008 21:15:18 -0500, Brian Whatcott
wrote:

matching prop pitch to desired cruise
speed is almost a black-art....

I though you gave it enough pitch just reach maximum rated RPM at WOT.

Casady

If you pitch a prop like this for a full laden boat - it can be dicey
with a light laden boat, don't you think?

Brian W