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06 Sportster leaking water pump running a lot

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mikerino

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Just bought a sportster, put it in the water and the pump runs about every 15 minutes and pumps out a lot of water. I have it sitting on a jet ski dock so it doesn't sink and with just the back sticking in the water it is still leaking. Can you suggest what to check?
 
Check everything in the back. Drain plug, carbon shaft seal, scupper fitting (if your boat has one). I think sticking your head down in the bilge with a really bright flashlight would also be a good troubleshooting technique.
 
I stuck my head in while it was in the water and heard drip drip drip. Seems like its coming from the exhaust. I am going to put it back in the water and start it, see if I can see where water is spraying out.
 
My Speedster had an exhaust leak as the can was installed improperly installed from the factory. It rubbed the hull and wore a hole in it.

It took alot of time to figure it out as it was difficult to see.

One clue was that the faster you went the more often it was pumping out. Next clue was the water was burning hot coming out. It will always be a bit warm because of how low and hot the engine is, but my bilge was hot hot.

I feel for you with a leak though as I bought my used and it did exactly what you are experiencing and it was frustrating to find.

My go pro was the most valuable tool as it attached a led panel light to it and put it in the bilge. I found my issue almost right away due to the fact that one I got underway, the whole engine bay went foggy. I then put it right looking at the carbon seal, and nothing. But when looking down at the seal you could see the stream coming from the right from under the exhaust can.
 
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