200 Hp Mercury Outboard Water Impeller. 225 30L EFI SEAPRO. Usually the impeller is the culprit but you wont know until you remove the lower unit and take a look.
Insects love to crawl up into it but once there they may become trapped and die. 200hp thru to 250hp EFI DFI OptiMax. OEM part numbers used for reference.
Usually the impeller is the culprit but you wont know until you remove the lower unit and take a look.
Insects love to crawl up into it but once there they may become trapped and die. There are three reasons your outboard motors impeller wont pump. 817275A5 817275A 5 817275A618-3407 Quantity. The first is that the water stream fitting -- the outlet hole for an outboard motors cooling system -- is clogged.