Home › Forum › Ask A Member › Diagnosing no spark issue on 1992 mercury 8 hp. 2 cycle › Reply To: Diagnosing no spark issue on 1992 mercury 8 hp. 2 cycle
ok good luck with the motor keep us all in the loop on the aches of your “new” motor. 🙂
just fyi the phase maker ignition (Thunderblot) using points would fire on points CLOSING contrary to magneto convention.
the CDI circuit was known to blow when the kill button was used when RPMS where high. With more modern CDI like yours with no mecanical points (uses a trigger pulse coil) I am not educated enough to know if the CDi could … be kill if interrupted at higher rpms.
If you are able to measure specs on the trigger and the stator as per the Video and the CDI book I strongly suspect the CDI box itself.
thankfully they don’t seem to expensive on Amazon compared to OEM at 300$
fyi bed time reading 🙂
https://wrcoutboards.org/wp-content/uploads/2021/02/The-Phase-Maker-CDI.pdf
Microsoft Word – Generator Coils Explained.doc (wrcoutboards.org)
Joining AOMCI has priviledges 🙂