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  #1  
Unread 04-12-2018, 03:00 PM
wellcraftv20step wellcraftv20step is offline
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Default Yamaha ox66 question

This morning I hooked up the muffs and started the motor.It started perfectly but I have no real volume of water coming out of the pee hole , it's merely a slow drip. I shut it down within 20 seconds or so, I stuck a wire in the pee hole just to be sure it wasn't clogged ,and it was free. I restarted it again with the same result. What should I be looking at next ? Stats ?? I can't imagine the lower unit pump just died like that but then again what do I know !!
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Unread 04-12-2018, 04:11 PM
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Try starting it in the water, Them motors need a god supply of water to pump[.
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Unread 04-12-2018, 05:10 PM
wellcraftv20step wellcraftv20step is offline
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Hi Joe, good to see ya! Last year I had an overheat alarm going off , and I was told by one of the guys as you said that they need mucho water , but I changed the thermostats and along with running the garden hose full open I never had that issue again.. I'm running the garden hose full open. I just know the motor well enough to feel as though I'm running her to long without water !!
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Unread 04-12-2018, 06:10 PM
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it should pee right away even when stats are closed.

not running, Does it pee with hose on the flush port?

I'm new to Ox66s. I've only run mine on the muffs last december during shutdown. they peed pretty good on the muffs.

Some motors need to build up enough water to start pumping. Sometimes you can plug a drain hole with your finger and get it to fill up...if that makes sense to you???

When was the last impeller change?
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Unread 04-12-2018, 07:25 PM
wellcraftv20step wellcraftv20step is offline
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Impeller was done 12 months ago, I just can't believe it would go from perfect to nothing at all, I'm afraid of running it dry for to long !!
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Unread 04-12-2018, 07:38 PM
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Yamaha's don't like running on muffs. Proper way is to run a muff and a y fitting to the flush fitting on the power head. Hook a hose the the flush fitting and see if anything is blocking the pee hole. Put the engine in a barrel or back it in teh water and see how it pumps
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