I have a 1985 85 Force Outboard on a Bayliner Trophy Fish & Ski. The
label on the boat, by the fuel filler hole, states "Use Leaded Regular
gas..."

I thought Leaded fuel went out in the mid 70s. Why then do I need Leaded
fuel on a 1985 motor?

--
It's no good unless it makes your eyes water.

Why then do I need Leaded
fuel on a 1985 motor?

A 2-stroke motor does not rely on lead for lubrication. Dont sweat it.

In article ,
obull (CCred68046) wrote:

Why then do I need Leaded
fuel on a 1985 motor?

A 2-stroke motor does not rely on lead for lubrication. Dont sweat it.


But why does it ask for Leaded?

--
It's no good unless it makes your eyes water.

"Jeepers" wrote in message
...
I have a 1985 85 Force Outboard on a Bayliner Trophy Fish & Ski. The
label on the boat, by the fuel filler hole, states "Use Leaded Regular
gas..."

I thought Leaded fuel went out in the mid 70s. Why then do I need Leaded
fuel on a 1985 motor?


Is there any chance the label is not original and
was added by some other owner of the boat?

In article ,
"Gary Warner" wrote:

"Jeepers" wrote in message
...
I have a 1985 85 Force Outboard on a Bayliner Trophy Fish & Ski. The
label on the boat, by the fuel filler hole, states "Use Leaded Regular
gas..."

I thought Leaded fuel went out in the mid 70s. Why then do I need Leaded
fuel on a 1985 motor?


Is there any chance the label is not original and
was added by some other owner of the boat?


I don't thinks so, it's an original package, boat and motor. I am the
second owner.

--
It's no good unless it makes your eyes water.

In article ,
wrote:

But why does it ask for Leaded?

Your engine talks? Be firm. Tell it it's getting unleaded or nothing. That'll
shut it up!

No, the engine doesn't talk, the LABEL does!

--
It's no good unless it makes your eyes water.

Jeepers wrote:

I thought Leaded fuel went out in the mid 70s. Why then do I need Leaded
fuel on a 1985 motor?

You don't.

The lead in gasoline was added to reduce knocking. Mixing lube oil in
gasoline for use in a 2-stroke engine lowers the fuel's knock
resistance. The manufacturer designed the engine to perform to
specifications with the use of leaded regular gasoline mixed with the
specified proportion of 2-stroke oil and therefore recommends that grade
of fuel.

Since leaded gasoline is no longer available you will have to use
regular or better grade unleaded fuel that matches the octane value of
the old leaded "regular" gasoline.

Rick

excerpt from: http://www.radford.edu/~wkovarik/lead/overview.html



"When you fill your car up at the gas pump, you may notice that you are
using "unleaded" gasoline.

Lead is not something that comes with gasoline that has to be taken out --
it was deliberately added by the oil industry to boost "octane" or
anti-knock ratings for fuel. It had to be phased out by government order,
for public health reasons, starting in 1975, and concluding in 1986. It was
also banned in various European nations in the 1990s. It is still having
serious public health impacts in developing nations, and a complete global
phase-out has long been advocated by the World Health Organization and all
other international health organizations."



excerpt from: http://www.chevron.com/prodserv/fuel...etin/unld-gas/



Marine Engines:

There is concern about older four-stroke cycle engines in marine service,
which were designed prior to the introduction of unleaded gasoline
(pre-1974). Under severe duty, these older engines could have valve
recession problems. If these engines are in severe duty service, owners
should consider installing hard seat inserts or using lead substitute
additives to minimize valve recession. Products like this have been found
effective in minimizing valve recession.

Mercury, who is a major supplier of Stern Drive Engines for marine use,
advises that their engines are automotive based and have hardened exhaust
valve seats. Most of Mercury's outboard engines were developed with unleaded
gasolines, and Mercury's only concern is with octane number.

All of Outboard Marine Corporation's current four-stroke cycle engines were
designed for unleaded gasoline and valve protection additives are not
needed. Additives are also not needed for their two-stroke cycle engines,
however, some of them may have the need for octanes higher than 87(R+M)/2.

The newer Volvo Pinta Stern-Drive four-stroke cycle engines are designed for
use with unleaded gasoline. Some of the older engines are not. We would
suggest owners contact their dealer for advice if they have an older engine
in severe service.

Yamaha outboard engines operate satisfactorily on unleaded gasoline. At
least one model, a high performance Model 225, requires a minimum 89(R+M)/2
gasoline.

Outboard Marine Corporation has issued a Service Letter for General
Information #53, August 1985, subject: Gasoline Lead and Alcohol. This
bulletin is very comprehensive on their position regarding unleaded gasoline
use and has extensive guidelines relating to their minimum octane level
desired. This should be available from Johnson and Evinrude dealers.

In article ,
"Stanley Barthfarkle" wrote:

If these engines are in severe duty service, owners
should consider installing hard seat inserts or using lead substitute
additives to minimize valve recession.


Mine doesn't see sever duty unless going all out across a big lake is
severe duty. I used lead additive in the tank for my first fill up (I
just bought it) due to the label. Was Iwrong in doing so? Do I not need
to add lead? I have no idea what sort of valve inserts this engine has.

--
It's no good unless it makes your eyes water.

In article t,
Rick wrote:

Jeepers wrote:

I thought Leaded fuel went out in the mid 70s. Why then do I need Leaded
fuel on a 1985 motor?

You don't.

The lead in gasoline was added to reduce knocking. Mixing lube oil in
gasoline for use in a 2-stroke engine lowers the fuel's knock
resistance. The manufacturer designed the engine to perform to
specifications with the use of leaded regular gasoline mixed with the
specified proportion of 2-stroke oil and therefore recommends that grade
of fuel.

Since leaded gasoline is no longer available you will have to use
regular or better grade unleaded fuel that matches the octane value of
the old leaded "regular" gasoline.

Rick


Could lead additive affect it's performance? So you are saying I don't
need to add additive, just use a bit higher octane?

--
It's no good unless it makes your eyes water.