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
1979 Johnson 35HP No spark on one cylinder.
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="kofkorn" data-source="post: 394858" data-attributes="member: 7076"><p>CDI Electronics has a pretty good troubleshooter guide for spark issues that you can follow here:</p><p></p><p>https://www.cdielectronics.com/support/ (1979 2 cylinder Johnson starts on pg 34)</p><p></p><p>Based on the guide, you may have an issue with the timing base under the flywheel. This tells the power pack when to fire the spark it has stored. Could be that your timer isn't close enough to the magnet and isn't picking up the field well. Johnson uses a "Locator Ring Tool" to position the stator/timer properly when installing. You may need to re-position it. There should be a little ledge under the timer that is machined into the crankcase. The front of the timer needs to align with this ledge perfectly. Using a straight edge should get you really close.</p><p></p><p>Might also be that one magnet is just a hair weaker than the other or the timer isn't picking up the field well. May be a bad timer base. But based on your description, I'd look at the positioning first. </p><p></p><p>Good luck!</p></blockquote><p></p>
[QUOTE="kofkorn, post: 394858, member: 7076"] CDI Electronics has a pretty good troubleshooter guide for spark issues that you can follow here: https://www.cdielectronics.com/support/ (1979 2 cylinder Johnson starts on pg 34) Based on the guide, you may have an issue with the timing base under the flywheel. This tells the power pack when to fire the spark it has stored. Could be that your timer isn't close enough to the magnet and isn't picking up the field well. Johnson uses a "Locator Ring Tool" to position the stator/timer properly when installing. You may need to re-position it. There should be a little ledge under the timer that is machined into the crankcase. The front of the timer needs to align with this ledge perfectly. Using a straight edge should get you really close. Might also be that one magnet is just a hair weaker than the other or the timer isn't picking up the field well. May be a bad timer base. But based on your description, I'd look at the positioning first. Good luck! [/QUOTE]
Verification
Post reply
Forums
Boats
Motors
1979 Johnson 35HP No spark on one cylinder.
Top