TinBoats.net
The original aluminum boat site!
Forums
New posts
Search forums
Blog
What's new
New posts
New media
New media comments
Latest activity
Media
New media
New comments
Search media
Members
Current visitors
Log in
Register
What's new
Search
Search
Search titles only
By:
New posts
Search forums
Menu
Log in
Register
Install the app
Install
Forums
Boats
Motors
74' Evinrude 25hp - 25402M
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Help Support TinBoats.net:
This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.
Message
<blockquote data-quote="Johnny" data-source="post: 399890" data-attributes="member: 13599"><p>my '79 Johnson 25 has 90psi top and bottom and it runs great.</p><p>I am running 50:1 and sometimes 40:1 gas mix. And now, non-ethanol.</p><p>I have seen several people here say a minimum of 80psi.</p><p>100 or more is gravy. Not more than 10% (??) difference.</p><p>Like they say, if the numbers are low and equal, it "may" be a leak in the head gasket.</p><p>Pappy was <u>extremely</u> gracious last year in walking me through</p><p>replacing the water deflectors and other items that are crucial in</p><p>getting the motor up to good running condition.</p><p></p><p><strong><span style="color: #0000FF">a Repair/Service Manual and Parts Catalog are highly recommended for any motor you own.</span></strong></p></blockquote><p></p>
[QUOTE="Johnny, post: 399890, member: 13599"] my '79 Johnson 25 has 90psi top and bottom and it runs great. I am running 50:1 and sometimes 40:1 gas mix. And now, non-ethanol. I have seen several people here say a minimum of 80psi. 100 or more is gravy. Not more than 10% (??) difference. Like they say, if the numbers are low and equal, it "may" be a leak in the head gasket. Pappy was [u]extremely[/u] gracious last year in walking me through replacing the water deflectors and other items that are crucial in getting the motor up to good running condition. [b][color=#0000FF]a Repair/Service Manual and Parts Catalog are highly recommended for any motor you own.[/color][/b] [/QUOTE]
Verification
Post reply
Forums
Boats
Motors
74' Evinrude 25hp - 25402M
Top