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Yamaha 200 hpdi fuel system question #13359368 12/02/19 07:19 PM
Joined: Oct 2001
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Mo Offline OP
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If I have an external fuel filter/ water separator , Can I bypass the one under the cowling ?
My engine is a 2000. It is sucking air into the internal fuel filter/ water separator. Boat will run for 100 yards or so , then die.
I have tightened the plastic ring nut as much as I dare.

I have new fuel filter and o ring ordered, but if that doen't fix it , What are my options


thanks
Mo



MY BACKYARD , 20,000 ACRES , NO MOWING smile
Re: Yamaha 200 hpdi fuel system question [Re: Mo] #13359447 12/02/19 08:48 PM
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ssmith Offline
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those motors need all the fuel filtration they can get especially coming from the boat side

Re: Yamaha 200 hpdi fuel system question [Re: Mo] #13359511 12/02/19 10:19 PM
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CADD Offline
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Amen on the need for filters 👍

My guess is clogged VST (vapor separator filter) or blown/wore out Low Pressure fuel pumps.
If they haven't been changed or rebuilt they way over due.


2001 Pathfinder 2200V 150Vmax HDPI
2015 Diablo Amigo (Sand Fleck)

Re: Yamaha 200 hpdi fuel system question [Re: Mo] #13359735 12/03/19 03:21 AM
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CADD Offline
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For more details search for "HPDI" and user name "Rodbolt" on iboats .com and just Google search HPDI VST Filter and HPDI Low Pressure Fuel Pumps.
I've done LPFP once and he VST twice. I replaced the LPFP with new ones from Boats .net and put in a VST filter the first time and just cleaned it the second time.


2001 Pathfinder 2200V 150Vmax HDPI
2015 Diablo Amigo (Sand Fleck)

Re: Yamaha 200 hpdi fuel system question [Re: Mo] #13359812 12/03/19 05:01 AM
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lurenthewind Offline
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I need to change all the filters on a VZ225 Yamaha HPDI. It does not look like fun?

Wayne


Luck will beat skill any time you have enough of it!
Re: Yamaha 200 hpdi fuel system question [Re: Mo] #13359972 12/03/19 02:15 PM
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boatman025 Offline
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check your high pressure filter and you need all fuel filters on that motor


Hughes Marine Service
3855 Osage Lane
Wylie ,Texas
Re: Yamaha 200 hpdi fuel system question [Re: Mo] #13362495 12/06/19 12:36 AM
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Mo Offline OP
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Are all the short hoses past the first fuel filter just regular fuel line hoses ? I assume I should change the out ..?

Received the low pressure pump. , will be changing them out tomorrow, wish me luck.

Mo



MY BACKYARD , 20,000 ACRES , NO MOWING smile
Re: Yamaha 200 hpdi fuel system question [Re: Mo] #13363207 12/06/19 02:35 PM
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boatman025 Offline
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I have not seen a lot of Yamaha fuel line going bad


Hughes Marine Service
3855 Osage Lane
Wylie ,Texas
Re: Yamaha 200 hpdi fuel system question [Re: Mo] #13363455 12/06/19 06:20 PM
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Chris B Offline
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When you hook up the computer does it show that it's running out of fuel? If you can't answer this question and you like your motor, take it to a shop and quit throwing parts at it. Service Marine at Lake Fork is excellent with HPDI's. This coming from a guy that likes to do most all of his own work himself.



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Re: Yamaha 200 hpdi fuel system question [Re: Mo] #13363479 12/06/19 06:35 PM
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boatman025 Offline
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I was the Yamaha rep for this area


Hughes Marine Service
3855 Osage Lane
Wylie ,Texas
Re: Yamaha 200 hpdi fuel system question [Re: Mo] #13366431 12/09/19 06:27 PM
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Mo Offline OP
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Thanks , Guy,

After taking a hard look at how much I would have to unhook , just to get to the parts in question ,
I have decided to let a pro do it.

MO



MY BACKYARD , 20,000 ACRES , NO MOWING smile
Re: Yamaha 200 hpdi fuel system question [Re: Mo] #13366438 12/09/19 06:32 PM
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boatman025 Offline
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Im in Wylie


Hughes Marine Service
3855 Osage Lane
Wylie ,Texas
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