1996 Evinrude 25hp alarm sound causes

aarongreen123

Petty Officer 2nd Class
Joined
Jul 23, 2010
Messages
133
25hp Evinrude, starts and idles at it should. after about 1500 rpms (estimate) the alarm speaking in the throttle control starts to click rhythmically, and then increases with speed as the rpms increase. I haven't pushed it much at all, but the boat will accelerate and get up on plane as normal but the alarm sound continues. This sounds very different to me than the normal high temperature alarm sound as when i throttle back down to idle it stops completely, immediately. Motor is pumping water normally. Impeller and thermostat replaced beginning of last season and everything operated normallly last season. What are the possible causes for this?
 

Bosunsmate

Admiral
Joined
Apr 7, 2012
Messages
6,135
might be a short in it somewhere, check for continuity to ground when out in boat.
Thats a short in the tan/brown wire
 
Top