John2189 535 #1 Posted April 1, 2023 Ok the original ignition was bad so I did the Ford rear brake sensor , gm ignition module and 12 volt coil from a youtube video. It runs great until you get to over 1/2 throttle then it starts back firing really bad. I just read another post about an engine back firing and one of the suggestions was to replace the condenser. Well the video said nothing about a condenser. Is it needed? Where does it go? On the positive side of the coil? Would any condenser work? john 1 Share this post Link to post Share on other sites
Ed Kennell 41,419 #2 Posted April 1, 2023 3 minutes ago, John2189 said: On the positive side of the coil? No, negative side same as the points. 1 Share this post Link to post Share on other sites
Blasterdad 3,044 #3 Posted April 1, 2023 (edited) 33 minutes ago, John2189 said: Would any condenser work? If I'm reading this right you don't have points, you've made it in effect an electronic ignition. Since you said it has a 12 volt coil you can try putting a condensor to the negative terminal of the coil & see if it helps. There are two kinds, one for magneto systems & one for coil systems. They have different Farad ratings. Use one for a coil system. Make sure the condensor is grounded. Edited April 1, 2023 by Blasterdad Share this post Link to post Share on other sites
953 nut 59,334 #4 Posted April 1, 2023 (edited) 1 hour ago, John2189 said: Is it needed? Where does it go? On the positive side of the coil? Would any condenser work? The condenser is there to quench the arc that is formed at the points when the points first open. I know nothing about the components you have used so can't give a well documented answer. The condenser on a Kohler battery ignition system connects to the negative side of the ignition coil and should be Kohler part # 230722. There are 25 posts (including some of your own) on here about the set-up you are using, read through them and you probably will find an answer to your question. https://www.wheelhorseforum.com/search/?q=GM ignition module&updated_after=any&sortby=relevancy&search_and_or=and Edited April 1, 2023 by 953 nut Add link 1 Share this post Link to post Share on other sites
John2189 535 #5 Posted April 1, 2023 7 hours ago, 953 nut said: The condenser is there to quench the arc that is formed at the points when the points first open. I know nothing about the components you have used so can't give a well documented answer. The condenser on a Kohler battery ignition system connects to the negative side of the ignition coil and should be Kohler part # 230722. There are 25 posts (including some of your own) on here about the set-up you are using, read through them and you probably will find an answer to your question. https://www.wheelhorseforum.com/search/?q=GM ignition module&updated_after=any&sortby=relevancy&search_and_or=and Yes. Seems the more I read about it, the more confused I get. 1 Share this post Link to post Share on other sites
