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#11836763 - 09/19/16 09:11 AM Overheating 06Yahama 250 Hpdi
H-D Dad Offline
Angler

Registered: 02/26/11
Posts: 401
Loc: Baytown TX
After idling for a few minutes, then trying to get on plane the overheat alarm will sound. If I put it in neutral and rev it to about 1500 rpm for a few seconds, that seems to cool it enough to get on plane. It looks to be about 8 psi on plane. I suspect some type of water pressure problem.
I replaced the impelled with no change in the problem. Any help would be appreciated.
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Wes

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#11837330 - 09/19/16 01:34 PM Re: Overheating 06Yahama 250 Hpdi [Re: H-D Dad]
ssmith Offline
Extreme Angler

Registered: 11/22/07
Posts: 2643
Loc: scotland tx
check the poppet valve if it has not been serviced.

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#11837389 - 09/19/16 02:02 PM Re: Overheating 06Yahama 250 Hpdi [Re: H-D Dad]
H-D Dad Offline
Angler

Registered: 02/26/11
Posts: 401
Loc: Baytown TX
I am working on that right now. Trying to get all of the parts. I am not sure if that rubber piece comes out of the cylinder block or not. Can anyone help me with that
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Wes

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#11837453 - 09/19/16 02:32 PM Re: Overheating 06Yahama 250 Hpdi [Re: H-D Dad]
ssmith Offline
Extreme Angler

Registered: 11/22/07
Posts: 2643
Loc: scotland tx
yes it comes out it would be included with the spring an plunger.

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#11837468 - 09/19/16 02:38 PM Re: Overheating 06Yahama 250 Hpdi [Re: H-D Dad]
H-D Dad Offline
Angler

Registered: 02/26/11
Posts: 401
Loc: Baytown TX
Ok Thanks
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Wes

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#11838178 - 09/19/16 08:33 PM Re: Overheating 06Yahama 250 Hpdi [Re: H-D Dad]
H-D Dad Offline
Angler

Registered: 02/26/11
Posts: 401
Loc: Baytown TX
Got her going. 12 psi at 3500 rpms. Thanks sssmith for your help. Maybe I will make this part of annual service or at a minimum every 2 yrs.
_________________________
Wes

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#11838612 - 09/20/16 06:49 AM Re: Overheating 06Yahama 250 Hpdi [Re: H-D Dad]
gary purdy Offline
TFF Guru

Registered: 05/24/03
Posts: 10907
Loc: Littlefield Tx & Lake A. H. US...
I would order the improved poppet assembly. You need to service your thermostats too.
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“The world will not be destroyed by those who do evil, but by those who watch them without doing anything” Remember what He has done and remember that He is not done yet! GOD IS GOOD

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