Need help identifying fuel/water discharge

[fastnlight]

Have a 95 Yamaha Waveblaster 1100 and during a dry start a fuel/water frothy mixture discharged out the rear. See attached pics. Running 40:1 premix with oil block off. Thanks.


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[Big Kahuna]

Water in cases?

 

[fastnlight]

Water in cases?

Wondering if I put this in the right category. Would it get more looks in “carnage”? Thanks.

 

[SXIPro]

Mucinex twice a day will clear that up.

 

[fastnlight]

No one’s ever seen this?


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[Quinc]

When you are doing riding for the day start it up out of the water and give it a couple few braps to clear the water out.

 

[mikidymac]

What color is your injector oil?

Sure looks like oil and water mixed but really strange how frothy it is and brown. Typically injector oil is blue.

 

[Iconicsuperpoop]

That's my favorite starbucks, a choc coffee, frothy latte with a dub o' synthetic. That'll wake your 'giner up.

 

[fastnlight]

What color is your injector oil?

Sure looks like oil and water mixed but really strange how frothy it is and brown. Typically injector oil is blue.

Oil is black. Maxim 990 Castor. The discharge smells like fuel. It’s a mixture of water and 40 to 1 pre-mix.


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[Big Kahuna]

Looks like a bad case of the runs. It does look like oil and water mix.

 

[restosud]

Just unburned fuel with water left in exhaust.if it came out of engine it would be darker.

 

[mikidymac]

If there is that much fuel and water in the exhaust I would say you have a leaking needle & seat in the carbs.

 

[Iconicsuperpoop]

As far as the oil injection delete, how was it done? Is the pump and/or lines still there, possibly sucking up bilge water?

 

[SXIPro]

If there is that much fuel and water in the exhaust I would say you have a leaking needle & seat in the carbs.

When I had a leaky NS in my squarenose it was puking out black goop not goop that looks like it fell out of a troll’s nose on Harry Potter.

 

[fastnlight]

As far as the oil injection delete, how was it done? Is the pump and/or lines still there, possibly sucking up bilge water?

Pump and lines are all gone. Has an oil block off plate.