My remote oil pump stays on. Mechanic said the main tank oil sensor
is bad. Looks like an easy fix...just get a new sensor.

In the meantime, can I disconnect the electrical leads to the remote
tank and manualy fill the main tank as needed. I will be getting the
sensor as soon as possible, but would like to use the boat in the
meantime.

On Sat, 07 Jan 2006 17:38:05 GMT, Charlie Brown
wrote:

My remote oil pump stays on. Mechanic said the main tank oil sensor
is bad. Looks like an easy fix...just get a new sensor.

In the meantime, can I disconnect the electrical leads to the remote
tank and manualy fill the main tank as needed. I will be getting the
sensor as soon as possible, but would like to use the boat in the
meantime.

Engine is an 84 model 115 hp Yamaha. I noticed the quick connect
fittings from the sensor to the control unit was disconnected. I
hooked them up and upon turning the key to just the on position, the
buzzer alarm went off. I disconnected the same lead again. I pulled
the main oil sensor part way out of the tank yesterday just to see
what it looked like basically and pushed it back into place. Turned
the key to the on position again and the pump turned on just as
before. This time though, when the pressure built up enough it popped
the oil sensor off the top. Not sure where it was leaking out before,
but I assuem it would have been the breather hose.

Looking at the manual (aftermarket manual) it shows a circlip at the
base of the sensor unit. Not sure if this applies to my year model or
not but I see no possible way of removing or securing any time of clip
to the base of the sensor unit.

On Sun, 08 Jan 2006 17:10:28 GMT, Charlie Brown
wrote:

On Sat, 07 Jan 2006 17:38:05 GMT, Charlie Brown
wrote:

My remote oil pump stays on. Mechanic said the main tank oil sensor
is bad. Looks like an easy fix...just get a new sensor.

In the meantime, can I disconnect the electrical leads to the remote
tank and manualy fill the main tank as needed. I will be getting the
sensor as soon as possible, but would like to use the boat in the
meantime.

Engine is an 84 model 115 hp Yamaha. I noticed the quick connect
fittings from the sensor to the control unit was disconnected. I
hooked them up and upon turning the key to just the on position, the
buzzer alarm went off. I disconnected the same lead again. I pulled
the main oil sensor part way out of the tank yesterday just to see
what it looked like basically and pushed it back into place. Turned
the key to the on position again and the pump turned on just as
before. This time though, when the pressure built up enough it popped
the oil sensor off the top. Not sure where it was leaking out before,
but I assuem it would have been the breather hose.

Looking at the manual (aftermarket manual) it shows a circlip at the
base of the sensor unit. Not sure if this applies to my year model or
not but I see no possible way of removing or securing any time of clip
to the base of the sensor unit.

Correction to the above...it was a single lead that was
disconnected...the red lead from the sensor to the control unit.

"Charlie Brown" wrote in message
...
On Sun, 08 Jan 2006 17:10:28 GMT, Charlie Brown
wrote:

My remote oil pump stays on. Mechanic said the main tank oil sensor
is bad. Looks like an easy fix...just get a new sensor.

Engine is an 84 model 115 hp Yamaha. I noticed the quick connect
fittings from the sensor to the control unit was disconnected. I
hooked them up and upon turning the key to just the on position, the
buzzer alarm went off. I disconnected the same lead again. I pulled
the main oil sensor part way out of the tank yesterday just to see
what it looked like basically and pushed it back into place. Turned
the key to the on position again and the pump turned on just as
before.


Here is a link to an article I wrote several years ago about the Yamaha oil
transfer system. I hope it can help you.

http://bassandwalleyeboats.com/output.cfm?id=942859

Bill Grannis
service manager

On Mon, 09 Jan 2006 00:34:32 GMT, "Billgran"
wrote:




Here is a link to an article I wrote several years ago about the Yamaha oil
transfer system. I hope it can help you.

http://bassandwalleyeboats.com/output.cfm?id=942859

Bill Grannis
service manager

Yes, that does help. I see some references to a filter causing
problems with the sensor inside the main oil tank:

"Carefully remove the unit, making sure the black foam sealing washer
stays with the tubular filter element. If it remains in the tank, the
seal can be forced into the feed hose going to the engine-driven
metering pump which could block the flow of oil."

In taking my sensor out, I didn't see any filter like that. Would
that be something in newer motors?

My sensor is a very simple thing, a cap with a long tube with an end
cap at the bottom secured with a circlip. If you take the circlip off
and the outer tube there is only the float remaining.

"Charlie Brown" wrote in message
...
On Mon, 09 Jan 2006 00:34:32 GMT, "Billgran"
wrote:




Here is a link to an article I wrote several years ago about the Yamaha
oil
transfer system. I hope it can help you.

http://bassandwalleyeboats.com/output.cfm?id=942859

Bill Grannis
service manager

"Carefully remove the unit, making sure the black foam sealing washer
stays with the tubular filter element. If it remains in the tank, the
seal can be forced into the feed hose going to the engine-driven
metering pump which could block the flow of oil."

In taking my sensor out, I didn't see any filter like that. Would
that be something in newer motors?



If you have to, drain the engine tank and look for the sealing washer and
install a new one on your sensor screen. Also make note of the screen
positioning over the sensor assembly so it will not airlock the oil and keep
it from flowing. Yamaha does not have any type of warning system if the oil
is not reaching the pump.

Bill Grannis
service manager

On Mon, 09 Jan 2006 08:45:49 GMT, "Billgran"
wrote:



If you have to, drain the engine tank and look for the sealing washer and
install a new one on your sensor screen. Also make note of the screen
positioning over the sensor assembly so it will not airlock the oil and keep
it from flowing. Yamaha does not have any type of warning system if the oil
is not reaching the pump.

Bill Grannis
service manager

I appreciate all your good advice about this. If you can't tell, I'm
a little bit challenged mechanically. Is the outside plastic tube on
the sensor the same thing as the filter you are referring to?

On my tank, the sensor does not seem to be connected in any way to the
bottom of the tank. Is the sealing washer to go around the cap?

Charlie Brown wrote:
On Mon, 09 Jan 2006 08:45:49 GMT, "Billgran"
wrote:



If you have to, drain the engine tank and look for the sealing washer and
install a new one on your sensor screen. Also make note of the screen
positioning over the sensor assembly so it will not airlock the oil and keep
it from flowing. Yamaha does not have any type of warning system if the oil
is not reaching the pump.

Bill Grannis
service manager

I appreciate all your good advice about this. If you can't tell, I'm
a little bit challenged mechanically. Is the outside plastic tube on
the sensor the same thing as the filter you are referring to?


So we are on the same page, the main tank is also the engine mounted
tank. The remote tank is the one in the boat.

The sensor on the main tank is removed by pulling it up and out. There
is a round screen around the float area to filter the oil. At the
bottom of the round screen should be a foam gasket, unless it is
dislodged inside the main tank. You would remove the clear plastic
tube held on by a ty-rap, to drain the tank.

You can find the parts breakdown on the Yamaha website and click on
service.

Good luck.

Bill Grannis
service manager
On my tank, the sensor does not seem to be connected in any way to the
bottom of the tank. Is the sealing washer to go around the cap?