On Thu, 05 Aug 2010 13:28:18 -0700, Andy wrote:

Andy writes:
If someone can suggest a better newsgroup for this question I
would appreciate it..

I have a Briggs 4 cycle , 5hp outboard motor that sat unused for 6
months.

Now, when I crank it up, it runs, but after about 15 seconds oil comes
pouring out the oil filler cap at the top of the engine, and after a few
more
seconds, the engine stops. No noticeable smoke from the exhaust. While
the engine is running, but when I crank it back up 15 minutes later ,
there is
some smoke, a small amount, out of the exhaust for a few seconds.

The oil level is proper, and the oil filler cap does not fit
tightly, so
the oil can come out.

Does anyone have any suggestions ?

Andy in Eureka, Texas

Might help to know the model number of the motor. Besides that, there may
be a separate breather somewhere that an insect or small animal has
clogged while the motor was stored. I can't recall ever seeing oil forced
up the filler on a small motor but there's pressure building up inside
and the only way out it seems is the filler. Usually the right oil level
does permit some blow-by to escape up the filler since there should be a
small gap at the top of the filler hole in the block between the oil
level and the top of the hole. Are you sure you don't have too much oil
in it?