Yamaha 200 HPDI external fuel pump?

[firstcatch]

I have a 1989 Pursuit 2800 which was repowered with twin 2004 Yamaha 200 HPDI's prior to my purchase.

I notice that the fuel line for each engine goes through what looks like an external pump mounted in the back of the bilge area on the inside of the transom .

So I guess my questions are;

Do the 200 HPDI's require an external fuel pump?
Is it possible the pumps are legacy from previous engines and now fuel just flows through the old pump but the pump is not doing the pumping?

Trying to get a handle on what exactly this thing is.

Any all insights welcome.

Thanks.

 

[boscoe99]

Re: Yamaha 200 HPDI external fuel pump?

It is not normal to have an electric fuel pump installed. However, it is possible.

Are you sure that these are pumps that you are seeing? Two other things come to mind.

One, boat mounted fuel filters. There may be a pair of wires coming from the bottom of each of them, which is for water in fuel sensing.

Two, senders for Yamaha or another manufacturer's fuel management systems. These will have three wires connected to each sensor.

Now if indeed your boat has electric fuel pumps mounted in the boat only the installer/previous owner will know the reason for such installation.

 

[firstcatch]

Re: Yamaha 200 HPDI external fuel pump?

Hi Boscoe99,
Thanks for the response. They are not fuel filters or fuel water separators. They are between the gas squeeze bulb and the engines.
They do have 3 wires.

 

[boscoe99]

Re: Yamaha 200 HPDI external fuel pump?

Do they look like this?

 

[firstcatch]

Re: Yamaha 200 HPDI external fuel pump?

Do they look like this?

No that is not it. I will upload a pic as soon as I can figure out my wife's camera....

 

[firstcatch]

Re: Yamaha 200 HPDI external fuel pump?

Here is a picture. All help is much appreciated.

 

[boscoe99]

Re: Yamaha 200 HPDI external fuel pump?

I can't tell what that is.

I thought you said it had three wires. I see only two.

 

[firstcatch]

Re: Yamaha 200 HPDI external fuel pump?

I can't tell what that is.

I thought you said it had three wires. I see only two.

Yea = I am a knuckle head. I was going on my memory... which I guess is shot.

 

[N1NE1]

Re: Yamaha 200 HPDI external fuel pump?

I did a Google search of every possible key word "outboard dual electric fuel primer pump" and if you look at images you see one of these , OMC part 174651. oil injection primer pump?

 

[99yam40]

Re: Yamaha 200 HPDI external fuel pump?

If that part # is correct, not sure if it is a oil injection primer though, more like an expensive replacement for regular cheap fuel primer bulbs

http://forums.iboats.com/non-repair-outboard-discussions/fuel-system-priming-6085.html

 

[99yam40]

Re: Yamaha 200 HPDI external fuel pump?

 

[Capt Ken]

Re: Yamaha 200 HPDI external fuel pump?

That is the old fuel primer for the OMC Seadrives. It took the place of a primer bulb. Get it out of the system and throw it as far as you can.

 

[firstcatch]

Re: Yamaha 200 HPDI external fuel pump?

That is the old fuel primer for the OMC Seadrives. It took the place of a primer bulb. Get it out of the system and throw it as far as you can.

That is what I was looking to hear!
Thanks for all the responses guys.

 

[99yam40]

Start your own new thread with all your info
Do not post questions on old threads

EDIT - The post has been moved to a new thread. This is a Public Service Announcement so members don't think 99 was seeing things. :smile: