Yamaha hpdi won't pee

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Yamaha hpdi won't pee
Yamaha hpdi won't pee
Yamaha hpdi won't pee
December 14, 2017 4:20 am EST
Location: 33.436N 77.743W
Wind Dir: WSW (250°)
Wind Speed: 29 knots
Wind Gust: 37 knots
AT Ps: 29.82 in (1009.7 mb)
Air Temp: 58°F (14.4°C)
Dew Point: 39°F (3.9°C)
Water Temp: 66°F (18.8°C)

Yamaha hpdi won't pee
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Yamaha hpdi won't pee
 
 
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surffishn
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PostPosted: Sun Dec 03, 2017 6:15 pm    Post subject: Yamaha hpdi won't pee Reply with quote

I was off shore other day and noticed I didn't have a stream coming out of port motor. I tried a wire. To see if it was plugged. Also blew air from a compressor into it. It ran ok did not heat up. Water pressure gauge at 10 psi. But nothing coming out. Any ideas hate to take to shop if I can fix. Thanks in advance
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PostPosted: Sun Dec 03, 2017 7:46 pm    Post subject: Reply with quote

Normally it's a water pump or Tstat.....  
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BarryTurano
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PostPosted: Sun Dec 03, 2017 8:38 pm    Post subject: Reply with quote

Do you see any water inside the housing? Water pump or T stat failure would over heat the motor. Is there a hose that goes to the pee outlet? If so could it be off or broken? Just a thought.
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surffishn
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PostPosted: Sun Dec 03, 2017 10:06 pm    Post subject: Reply with quote

I checked the small tube to outlet
It's on dose not seem clogged.no water in housing. I think pump is ok as I have pressure at gauge. I guess I'll take to my mechanic.
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PostPosted: Mon Dec 04, 2017 5:35 am    Post subject: Reply with quote

disconnect the hose at the discharge fitting, start the engine and see if water comes out. If it does the fitting is bad.  
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tanc
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PostPosted: Mon Dec 04, 2017 1:47 pm    Post subject: Reply with quote

I've had the same. With the cowling off I traced the water line backwards from the discharge fitting, disconnecting the hose to see if I could find a blockage in a hose or fitting. Turned out to be a wad of sand in the rectifier. Once I got that cleaned out she's been fine. My guess is that the boat's previous owner ran her too shallow and sucked the sand up in there roll  
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surffishn
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PostPosted: Mon Dec 04, 2017 2:33 pm    Post subject: Reply with quote

I have not ran shallow. But must of picked up something. To cause blockage. I get a few drops out of fitting. But no stream. Guy that normally works on my motors. Says he can't get to it till first of year. Guess I will try some more. Any advice on Yamaha mechanic within 50 miles of New Bern?
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PostPosted: Mon Dec 04, 2017 8:00 pm    Post subject: Reply with quote

Burleson marine in MHC is great, but I think any Yamaha certified mech should be able to handle this one.

I use a plastic stick to break the clogs, one of those gas line marking flags. Works best with motor running on muffs, and it may be way up there. Could also try some salt away or run motor in trash barrel or other similar with a bunch of white vinegar in it. Find 2-3 gallons of cheap white vinegar plus water to get above pickups.
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DOGKILLR
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PostPosted: Tue Dec 05, 2017 7:54 am    Post subject: Reply with quote

150 to 200lb mono works good to clean out the tube. Stiff enough to push down but make sure end is blunt not cut at angle as it can damage the pee tube.
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cantgitright
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PostPosted: Tue Dec 05, 2017 5:47 pm    Post subject: Reply with quote

Try blowing air back thru the pee tube. I changed water pump, thermostat and flushed with all kinds of salt away products on my Yamaha last summer and still weak to no stream. Blew air back thru it with my compresser and cleared right up  
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surffishn
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PostPosted: Thu Dec 07, 2017 11:36 am    Post subject: Reply with quote

Thanks for all the advice. I worked on it did not get it unlocked. But I will try again. Just been busy. And won't be going offshore for a while.
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