Posted By: H-D Dad
Overheating 06Yahama 250 Hpdi - 09/19/16 02:11 PM
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.
Posted By: ssmith
Re: Overheating 06Yahama 250 Hpdi - 09/19/16 06:34 PM
check the poppet valve if it has not been serviced.
Posted By: H-D Dad
Re: Overheating 06Yahama 250 Hpdi - 09/19/16 07:02 PM
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
Posted By: ssmith
Re: Overheating 06Yahama 250 Hpdi - 09/19/16 07:32 PM
yes it comes out it would be included with the spring an plunger.
Posted By: H-D Dad
Re: Overheating 06Yahama 250 Hpdi - 09/20/16 01:33 AM
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.
Posted By: gary purdy
Re: Overheating 06Yahama 250 Hpdi - 09/20/16 11:49 AM
I would order the improved poppet assembly. You need to service your thermostats too.