91' Yamaha 130

baymaster 2150

Recruit
Joined
Dec 14, 2005
Messages
3
after 2 to 3 minutes at 5400 rpms under a load, my engine warning alarm goes on. I replaced water pump, checked engine for overheating by apliing fresh lake water directly to engine block (that was fine), dropped engine lower into lake and it still keeps going on. Alarm goes on, engine backs off and then alarm goes off seconds after bringing back throttle. Stomped as to why?
 
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