engine alarms

applebeepa

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i've changed the poppet valves and water pumps...still alarms, it is continuous with slowed rpm...only happens when not on plane...any help appreciated.
thanks
larry
 

applebeepa

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engine alrms

good oil pressure....yamaha 130's /port engine...just had everything changed...isn;t the oil alarm intermittant? sorry i am new to boating.
 

JUST-IN-TIME

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applebeepa said:
i've changed the poppet valves and water pumps...still alarms, it is continuous with slowed rpm...only happens when not on plane...any help appreciated.
thanks
larry

what year 130?

changed t-stats?
change w-pump housing?
 

JUST-IN-TIME

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applebeepa said:
JUST-IN-TIME said:
applebeepa said:
i've changed the poppet valves and water pumps...still alarms, it is continuous with slowed rpm...only happens when not on plane...any help appreciated.
thanks
larry

what year 130?1998

changed t-stats?no
change w-pump housing?[yes]

t-stat check time asap
 

applebeepa

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JUST-IN-TIME said:
applebeepa said:
JUST-IN-TIME said:
applebeepa said:
i've changed the poppet valves and water pumps...still alarms, it is continuous with slowed rpm...only happens when not on plane...any help appreciated.
thanks
larry

what year 130?1998

changed t-stats?no
change w-pump housing?[yes]

t-stat check time asap[do you mean thermastats? i will check asap, is this an expensive or difficult repair?]thanks for your help,larry
 

Boats Rock

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I had the same problem. When I removed the thermostats they were clogged. I had to dig at the ports with a piece of wire and run a lot of water down the passages. I found when you flush after use it only pushes water up to the bottom of the thermostats not threw them. So this winter I removed them,washed out the passages and pured salt desolver down the holes.