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Hello guys,
I was riding my Waverunner the other day and all of a sudden the Revs dropped off and would only rev to about 1/4 rpm. I suspect that it was overheating and the thermal switch cut in to protect the motor.

Upon inspection I found a line split. How come I have 2 hoses going to the engine. Doesn't the water come back out through the exhaust like an outboard.
 

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One of those may be a bilge pump line (the top one) and the bottom one may be the piss pipe. Is there a piss pipe coming out of the side of the ski? I'm not sure how that model is configured
 

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The one at the bottom of the pic ( left hand side of the ski ) is the bilge line. It should connect to the small square bilge pick up in the bottom center rear of the engine compartment. The one that is split is the water supply to the engine for cooling. The cooling water exits the ski through the exhaust system. There is no pisser on the WR500. That's just my two cents worth so take it as the opinion of one who has three of the WR500 s
 
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