warning horn yamaha 140 v4 1994

[woodhill driver]

Yamaha 140 v4 2 stroke 1994 approx
can someone tell me if the warning horn would sound if i was not supplying enough water from my hose (low water pressure) whilst flushing on the muffs or if this would sound if the 2 stroke main tank oil is low. Outboard tank is fine new 2 stroke oil pump just fitted. engine temp is ok
In fact can anyone tell me every instance that this alarm will sound so i can eliminate
Thanks

 

[rodbolt]

Re: warning horn yamaha 140 v4 1994

that horn will sound for engine overheat,low engine oil tank level and cranking with the stop lanyard removed.
as the 140 is not a US market motor I am not sure if low battery voltage will set the horn as well.
that motors alarm system does not monitor water pressure just cylinder head temps.