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Flushing an outboard motor
wrote:
On Fri, 04 Jan 2008 19:51:29 -0500, Dan wrote: wrote: On Fri, 04 Jan 2008 13:40:42 -0500, wrote: On Fri, 04 Jan 2008 11:24:30 -0500, wrote: To flush my Yamaha, here is what I do: Attach garden hose to fitting built into the motor and turn on water. Do NOT run motor while doing this. Drink a beer Turn off water and unscrew hose. If you don't run the motor long enough to open the thermostat you are not really flushing the powerhead, only the water manifold. There may be some exchange with the water in the powerhead but there will be pockets that remain. The Yamaha was designed and built with this method of flushing. It's not an afterthought, and you do NOT need to run the motor to properly flush it. In fact, that would be a bad thing to do! How could it be bad? It's no different than running it in the water. I have the built in connection but I still prefer to run it. Your water pump may feel differently about that. I don't get your point. When you idle in the water or a tub there's nothing but the impeller (water pump) forcing water though the motor. On muffs or with the quick connect there's +/- 50psi of water forcing itself through the motor. I have a 4 stroke "Yamamercury". Yamaha on top - Merc on the bottom. |
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