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1999 wave runner xl700x cooling hose problem

carlmaxx21

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1
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Boat Make
Yamaha
Year
1999
Boat Model
Jet Ski
Boat Length
Other
The pee hole on the left side,has a cooling hose inside the hull. I'm trying to find out where the other end hooks to? 17158684344275642644904773533303.jpg
 

biffdotorg

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Location
Pelican Rapids, MN
Boat Make
Yamaha
Year
2011
Boat Model
Limited S
Boat Length
24
If you fire up the engine on the hose, or in the water, you will see a stream filling your hull. Sounds silly, but you would find it fairly quick. I would suggest doing it on the hose. I would bet, you would not even have to fire up the engine.

Most will say the "pisser" comes directly from the oil cooler, which should be last in the chain of cooling. But in your case, this is a 2-stroke, so no oil cooler. I'm gonna have to look at a parts diagram. It's gotta be on the block somewhere.

Good luck!
 
Last edited:

biffdotorg

Jetboaters Admiral
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Location
Pelican Rapids, MN
Boat Make
Yamaha
Year
2011
Boat Model
Limited S
Boat Length
24
I'm 90% sure there is a hose coming off the top of the exhaust manifold. As most of the 2-stokes of that vintage had a water jacketed exhaust manifold. Check the topside for a connection of that size. I think it plugs into #33 That hose you are holding may be 16,17,18

1715869737783.png
 
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