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G
gegenator150
replied to the thread
Water Intrusion
.
I bought a pressure tester and pumped it up to 15psi. I sprayed soapy water around off the possibly leak points and they seamed sealed...
Sep 17, 2026
jimmbo
replied to the thread
Can't kill it!
.
1966, at least the Cowl is
Sep 17, 2026
Lou C
replied to the thread
2018 Mercury 40 EFI – rhythmic RPM surging at WOT after 5 minutes – video
.
Another possible cause might be a clogged screen (if it has one) on the fuel tank pick up tube. Also look in the stickies, there is a...
Sep 17, 2026
C
Crosbyman
replied to the thread
Can't kill it!
.
this 9.5 beauty still runs perfectly to ! from the mid 60s paid $50 cdn but had to help the rings wake up !
Sep 17, 2026
A
airshot
replied to the thread
Can't kill it!
.
It might but the maintenance and repairs will exceed the value
Sep 17, 2026
arks
replied to the thread
Can't kill it!
.
Agreed, but I keep an eye on it. As long as it’s pumping strong, there’s no reason to change it.
Sep 17, 2026
arks
reacted to
flashback's post
in the thread
Can't kill it!
with
Like
.
Your pushin Your luck regarding the pump impeller.
Sep 17, 2026
R
ryanagler
reacted to
dog22's post
in the thread
2018 Mercury 40 EFI – rhythmic RPM surging at WOT after 5 minutes – video
with
Like
.
Sounds like a fuel or air problem. It's not getting enough fuel, which can indicate a bad fuel pump or a clogged fuel filter, or it's...
Sep 17, 2026
alldodge
reacted to
muc's post
in the thread
Adding antifreeze
with
Like
.
You only remove that plug when using the single point drain while boat is in the water.
Sep 17, 2026
jimmbo
replied to the thread
Can't kill it!
.
Back in 1980, we had the Evinrude version of that motor. I think we had it for 15 yrs. Had it on a 14 foot car topper
Sep 17, 2026
D
dog22
replied to the thread
2018 Mercury 40 EFI – rhythmic RPM surging at WOT after 5 minutes – video
.
Sounds like a fuel or air problem. It's not getting enough fuel, which can indicate a bad fuel pump or a clogged fuel filter, or it's...
Sep 17, 2026
alldodge
replied to the thread
What's the word on the street about current Mercury models?
.
Using AI is about like asking folks on a forum, some know some don't know, adding AI in the mix without checking if it's actually...
Sep 17, 2026
alldodge
reacted to
MikeSchinlaub's post
in the thread
Boats from work.
with
Like
.
I still have a hard time with the pearl. That stuff is hard to see anyway, and it really doesn't help when it doesn't contrast with the...
Sep 17, 2026
redneck joe
replied to the thread
What's the word on the street about current Mercury models?
.
AI summary So this is tonight's answer from A1 The production location for Mercury outboards in the 60 to 90 horsepower (hp) range...
Sep 17, 2026
redneck joe
reacted to
MikeSchinlaub's post
in the thread
Boats from work.
with
Like
.
I still have a hard time with the pearl. That stuff is hard to see anyway, and it really doesn't help when it doesn't contrast with the...
Sep 17, 2026
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