not familiar with your particular motor - but- most flush adaptors where you screw an adaptor in and then shove the hose onto them do not need the motor running and are above the water pump level so perhaps not recommended as the impeller may be dry. They seem to flush the block and not the water pump. Personally I would only run the motor with flush muffs attached and I much prefer this method as I want to be sure the water goes thru the water pump to get the salt out of there.
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