I have a 1990 evinrude 120 that has not been run in 7 years
Put new plugs , impeller, t-stats , and linked and synced carbs
Motor runs great but overheats and alarm goes off after 4-5 minutes above 4000 rpm
Keep it below 4000 rpm and it runs all day without overheat
Only the starboard head sensor goes off
Any suggestions on this would be great but my real question is : The instant that the overheat alarm goes off , the motor bucks like its missing badly and the rpm's drop instantly
are the overheat sensor and the powerpack related at that time to protect the motor ?
Once it cools down it starts right back up and runs great until exceeding 4000 rpm
Always run in fresh water ( Montana )
Put new plugs , impeller, t-stats , and linked and synced carbs
Motor runs great but overheats and alarm goes off after 4-5 minutes above 4000 rpm
Keep it below 4000 rpm and it runs all day without overheat
Only the starboard head sensor goes off
Any suggestions on this would be great but my real question is : The instant that the overheat alarm goes off , the motor bucks like its missing badly and the rpm's drop instantly
are the overheat sensor and the powerpack related at that time to protect the motor ?
Once it cools down it starts right back up and runs great until exceeding 4000 rpm
Always run in fresh water ( Montana )