1992 evinrude 150 EXEN vacuum line diagram

[striper chaser]

I have a couple vacuum lines that go no where, they just end and are not plugged. I have tried to find a vacuum diagram and have come up short. The manifold balance tube drains just hang down I assume, to drain. The picture shows a tee that comes from the bottom front of the block, hard to see but if you can zoom in you'll see where it goes to, where does this go?? Then the line that goes to the tach just ends right in front of it. Can some one tell me where these go? Thanks, Mike

 

[Faztbullet]

The lower part is the lower drain and the "T" is not OEM.

 

[striper chaser]

The lower part is the lower drain and the "T" is not OEM.

what does it drain?? where does the tach tube connect to?

 

[racerone]

The air box in front of the carburetors.----Look for a nipple near the bottom.

 

[striper chaser]

The air box in front of the carburetors.----Look for a nipple near the bottom.

10-4, I think I have it all figured out from here except where the speedometer tube goes. I thought it went to a pickup on the bottom stern of the hull but someone routed it to the inside of the engine compartment ?!?!?

 

[saltchuckmatt]

10-4, I think I have it all figured out from here except where the speedometer tube goes. I thought it went to a pickup on the bottom stern of the hull but someone routed it to the inside of the engine compartment ?!?!?

Not sure your question, but some outboards have their own speedo tube. The gearcase has a little hole that routes water up through the motor to a speedo on the dash. From the cowling you have to run your own tube.

 

[striper chaser]

Not sure your question, but some outboards have their own speedo tube. The gearcase has a little hole that routes water up through the motor to a speedo on the dash. From the cowling you have to run your own tube.

this one has a tube that goes from the speed-o to the motor but it is not attached to anything, just sticking up in the air... Where would the tube attach?? I have looked but everything is so tight with all the wires and I don't know where to look...

 

[saltchuckmatt]

this one has a tube that goes from the speed-o to the motor but it is not attached to anything, just sticking up in the air... Where would the tube attach?? I have looked but everything is so tight with all the wires and I don't know where to look...

Usually it goes into the wiring harness area....not sure if your motor has one. Others might know.