Tweet
I am planning a trip this summer on a '69 FL with a 12v 4.8 ohm coil, stock points and condenser. If I were to have a coil failure and could only find a newer style 2.8 ohm coil would it work, would it cause any other damage? Thanks for any insight, I am electrically challenged.
-
Bob Rice #6738 -
I would work, but the coil will overheat and not last long. I would get you home though. Points would need dressing/replacement too.AMCA #41287
1972 FX Boattail Night Train
1972 Sportster project
1971 Sprint SS350 project
1982 FXR - AMCA 99.25 point restoration
1979 FXS 1200 never done playing
1998 Dyna Convertible - 100% Original
96" Evo Softail self built chopper
2012 103" Road King "per diem"
plus 13 other bikes over the years... -
Thank you. Can you or someone explain to me in laymans terms (if possible) why the things you say will happen? What do the lower ohms actually do or change in my system, why lower ohms for electronic ignition? Thanks.Bob Rice #6738Comment
-
Ohms measure resistance to electric current or flow. Less ohms means more current can flow and that causes more heat in the coil. The points and condenser can't handle the extra current and there is arcing when they open, which damages the contacts.
I don't know what they do with electronic ignitions to work with 3-ohm coils.Last edited by joe fxs fxr; 02-23-2021, 02:30 PM.AMCA #41287
1972 FX Boattail Night Train
1972 Sportster project
1971 Sprint SS350 project
1982 FXR - AMCA 99.25 point restoration
1979 FXS 1200 never done playing
1998 Dyna Convertible - 100% Original
96" Evo Softail self built chopper
2012 103" Road King "per diem"
plus 13 other bikes over the years...Comment
Comment