2005 PLSOR cuts after starting

Harkonnen

Petty Officer 3rd Class
Joined
Mar 29, 2022
Messages
82
More problems with J115PLSOR 2-stroke.

Starts fine, but the moment I release the starter switch, it dies immediately. What gives?

What I know so far:

Not the ignition switch — same behavior even when bypassed completely.
Not the kill circuit — checks out fine.
Not fuel-related — it dies cleanly, and the dashboard resets at the same moment as if the ignition had been switched off and back on.

At this point, I am thinking there is a brief power loss when the starter circuit turns off, just long enough to kill the motor and reboot the dash. Any ideas on how to troubleshoot that would be appreciated.

Thanks!
 
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