Hi all. New member and new outboard jet owner. I feel dumb asking this question but how do you flush a 25hp mercury jet?
I’ve looked all over and can’t find a place to connect a flushing attachment.
The manual says to use muffs by there is no shaft/ lower unit with water intake
I called mercury and they said there should be a flushing connection on the port side. Can’t find it.
I feel like I must be missing the obvious?!
Thanks
The flush port is plugged with a bolt. It is located near the grease tube. Remove the bolt and there is a treaded adaptor that screws in with a hose quick connect.
Moved to the Outboard Maintenance section for future reference @Joshvt
Thanks for the quick response and sorry for the wrong category.
Still feeling dumb here… the bolt I am pointing too in the pic? Doesn’t seem large enough and is on both sides. I’m hesitant to start unbolting random bolts that don’t seem logical.
No worries on the category. We’re all learning here.
Leaving it up to the expert @JCDesigns to answer your question.
Negative, that bolt holds the impeller liner in. I’m not seeing the flush port on yours though. It is typically right there where the grease port is maybe slightly higher. Check the other side in that location, maybe they put ig there due to clearances on the small pump.
Here’s a pic of the other side. My manual says the bigger bolt I am pointing to is the oil drain plug. I don’t see any other possible flushing bolts.
After lots of searching, I think I found the answer… Finally watched this video in it’s entirety https://www.youtube.com/watch?v=5MGV5imIb5Q (I initially wrote it off bc it wasn’t a merc) At about the 3 min. mark he talks about how small pumps do not have a fitting for flushing. He suggests you can drill and tap in a fitting… So incase anyone is wondering, a Mercury 25 jet does not have a flush port. Luckily, my motor only has 2.5 hrs- all in fresh water. I bought this boat with the intention to sell/ swap this motor for a prop since we will be using it in saltwater and a prop better suits our needs. I won’t be attempting to drill and tap in my own fitting on a basically brand new motor. Hopefully this hard to find fact helps someone who may be considering a Mercury jet.
for the time bing, just put the lower in a trash can of tupparwear with water and let it cycle. dont go crazy with this the watwr will get hot. warm is ok, hot not good.
That’s my plan. Bought a big trashcan last night. Do you change the water multiple times. Seems like it would be instantly salty and then you are flushing w salt water
