My 2010 kawi stx 15f has vapor coming out the tail pipe

[moond0gy]

Is this normal. After a long ride I notice smoke after flushing. The vapor rises about 7 ft and disappears. All compression is at 151 when cold. Replaced exhaust manifold gasket with kawasaki OEM. Ans it looks like this ...

different angel

[K447]

Looks like water vapor, just steam from the exhaust cooling via water injection?

[pro1200]

I'm surprised to see vapor coming from my 15F while on the water, compared to my Sea-Doo. I'd say your exhaust looks normal but why did you replace the exhaust manifold gasket?

[moond0gy]

It was aftermarket and I crushed it a few times. I thought it could be compromised so i replaced it with OEM.

[steve45]

Let's see...

Basic chemistry, when you burn gasoline, you're mixing C8-H18 (or something near that) with O2. This results in CO2 and H2O, i.e. water vapor. Hello!