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Max Online: 36273 @ 01/23/13 02:34 PM
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#11751109 - 07/31/16 07:04 AM Yamaha 200 HPDI 2007 - Top End Power
BassLakeFork Offline
Outdoorsman

Registered: 10/30/11
Posts: 161
Chronic problem with my Yamaha 200 HPDI. The motor occasionally loses top end power almost like it is running on 5 cylinders. It was rebuilt due to a blown power head last year and had similar symptoms before it blew.

The last two one-day fishing trips, it started fine, got on plane fine, but would top out with about 20% less power than usual. Both times I stopped short of my planned destination and fished for about an hour. When I started back up it seemed to run normal the rest of the day - with maybe just a time or two where it sputtered at full throttle for just second which was almost unnoticeable.

I have had all the typical filters, fuel lines, and pump ball replaced. One item excluded from the rebuild last year was the high pressure fuel pump. I have heard there are some filters in the high pressure pump also that are difficult or maybe impossible to replace. Any thoughts here?

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#11751162 - 07/31/16 08:06 AM Re: Yamaha 200 HPDI 2007 - Top End Power [Re: BassLakeFork]
gary purdy Online   content
TFF Guru

Registered: 05/24/03
Posts: 10429
Loc: Littlefield Tx & Lake A. H. US...
I would have all of the injectors serviced plus the hidden filters soon before you blow it again:
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#11752434 - 07/31/16 10:42 PM Re: Yamaha 200 HPDI 2007 - Top End Power [Re: BassLakeFork]
BassLakeFork Offline
Outdoorsman

Registered: 10/30/11
Posts: 161
Pardon my ignorance, but what is that a picture of?

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#11752528 - 08/01/16 06:16 AM Re: Yamaha 200 HPDI 2007 - Top End Power [Re: BassLakeFork]
gary purdy Online   content
TFF Guru

Registered: 05/24/03
Posts: 10429
Loc: Littlefield Tx & Lake A. H. US...
Hidden fuel filters
_________________________
“The world will not be destroyed by those who do evil, but by those who watch them without doing anything” GOD IS GOOD

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#11753824 - 08/01/16 06:21 PM Re: Yamaha 200 HPDI 2007 - Top End Power [Re: BassLakeFork]
BassLakeFork Offline
Outdoorsman

Registered: 10/30/11
Posts: 161
It that a high pressure pump that the filters are hidden in?

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#11757399 - 08/03/16 06:47 PM Re: Yamaha 200 HPDI 2007 - Top End Power [Re: BassLakeFork]
Fish Killer Offline
Big Sexy

Registered: 12/11/04
Posts: 24718
Loc: Weatherford
Yes
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#11758899 - 08/04/16 03:37 PM Re: Yamaha 200 HPDI 2007 - Top End Power [Re: Fish Killer]
RedSkeeter Online   content



Registered: 04/12/05
Posts: 12568
Loc: Emory, Texas
Originally Posted By: Fish Killer
Yes


Chris have you pulled your pump and replaced them ?? I have never done it, Lance at F&S may have at some point.. I change out all the one's I can get to regularly, and I added a water seperator w 20 bizillion micron filter. Hopefully I can catch any bad stuff before it gets that far, been ok for 13 yrs..
To the OP,
I had some old/ bad gas cause mine to stumble on higher rpm's, it didn't take long to go bad.. Chuck at service marine said it lose's octane power quickly, he gave me a pump to sux it all out, and into my truck. Ran fine in the truck's hemi.. Justsay'n
New plugs, and fresh gas, boat runs like a scalded dog... grin
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#11759384 - 08/04/16 08:25 PM Re: Yamaha 200 HPDI 2007 - Top End Power [Re: BassLakeFork]
BassLakeFork Offline
Outdoorsman

Registered: 10/30/11
Posts: 161
Thanks, yes I have a large gas tank and tend to only add about once a month. Maybe I should start running it closer.

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