Alarm problem

M

Mark1962

Recruit
Joined
Aug 24, 2008
Messages
2
I have a 115HP Yamaha outboard, year 2000. The alarm goes off when RPM get above 1700. I have replaced water pump, oil level sensor, cleaned the oil filter, removed thermostates from both heads, and disconnected both temperature sensors. The alarm continues to go off.

Please help I am getting ready to use as an anchor.

Mark
 
JUSTINTIME

JUSTINTIME

Captain
Joined
Sep 2, 2006
Messages
3,284
Re: Alarm problem

if u pulled the temp sensors, then u know it is not those
does it go into rpm reduction mode
 
M

Mark1962

Recruit
Joined
Aug 24, 2008
Messages
2
Re: Alarm problem

yes the engine goes into rpm reduction mode, the engine temp after removing the thermostats is cool to the touch,
 
Yamajoe

Yamajoe

Petty Officer 1st Class
Joined
Oct 31, 2007
Messages
264
Re: Alarm problem

Replace your thermostats, check your pressure control valves, clean them out if in a bad way, replace and be careful when you replacing it , as you can push the ball into and past the groove, check the wiring on oil level sensor.
 
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