Thanks, there is good information on the PDQ site.
Yesterday I removed the thermostat from the motor and it appears to be stuck in
the open position. I started and ran the motor for a few seconds to verify
that water was indeed flowing from the thermostat housing. I replaced the
housing cover and again ran the motor. The water flow from the tell-tale
remains very weak, only sputtering. I will replace the thermostat on each
motor and then run the boat using only the affected motor to see if it
overheats. The writer on the PDQ website says that if cooling water is flowing
from the thermostat housing, then cooling of the engine is taking place. While
I haven't read any positive reports, I may use Salt-Away to try to flush out
the corrosion that is apparently blocking the cooling passages. If anyone has
a better solution or product, please pass it on.
Thanks, Ted
--- On Thu, 5/6/10, andrew jackson <catedelmiami@xxxxxxxxx> wrote:
From: andrew jackson <catedelmiami@xxxxxxxxx>
Subject: [Scoaa-members] Yamaha cooling passages
To: scoaa-members@xxxxxxxxx
Date: Thursday, May 6, 2010, 7:34 AM
I have found the PDQ forum www.pdqforum.com to be a great source of info
relating to the Yamaha outboard. Just go to the outboard section and search all
the threads. A lot of info on how to unclog the water passages.
AJ
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