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Cooling system problem

BnTLyons

Member
Messages
1
Reaction score
0
Points
10
Boat Make
Yamaha
Year
2016
Boat Model
SX
Boat Length
24
Hi everyone! New jet boat owner here and have some questions about what I believe to be a cooling system problem. Trying to do some troubleshooting and noticed that when flushing the port engine, water exits the pisser, the impeller/gear area and this black hole to the left. When flushing the starboard engine, water does not exit through that black hole. I would use proper terminology if I could find a maintenance manual. I’m not very mechanical. Any ideas?
 
Pictures would help, but I imagine that the black hole you’re talking about is the exhaust.
 
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