1968 40hp johnson gas or air line??

[Nhayes0027]

I seem to have an air or gas hose running from the right side of the engine (looking back to front of boat) from a small circular power source of some sort. I also have a duct or plug in valve which sets on the block, under the carb and under the starter mounting bracket. This valve I noticed a minute ago sprays a myst I'm not sure it's origin. Does this hose go to the valve? I can email pictures better detailing but it won't let me post them here

 

[Nhayes0027]

It seems the hose in reference runs from the cut out switch. Should this be connected to some thing on its opposite end? Could this not being connected effect performance?

 

[F_R]

Reading between the lines, I think you are talking about the metal hot air tube leading from the exhaust manifold to the automatic choke. The other hose (assuming) goes to the vacuum cut-put switch. What sort of problem are you having, other than a leaking hose?

 

[F_R]

There is another, smaller hose running between the bottom and top of the block. It is an oil hose to lubricate the upper main bearing. The vacuum cut-out switch does nothing unless the motor is in runaway condition (running wild, won't slow down). The vacuum cut-out kills the ignition on one cylinder till it slows down to normal.

 

[Nhayes0027]

The hose doesn't leak. The one from the cutout switch is just dangling. The valve under the carburetor though not connected is spewing a myst out

 

[Nhayes0027]

My issue originally is it isn't getting enough speed on the water. I posted in another blog on this site. While replacing the old spark plugs I noticed this hose and the myst I noticed after starting the motor to ensure plugs were firing it up.

 

[Nhayes0027]

Where will I find the upper valve to plug the hose from the bottom to the top?

 

[Nhayes0027]

After some parts searching. It does seem to be a lube fitting. How ever, I have no clue as to where the hose goes from there assuming it even gets a hose.