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Over heat alarm in sounding....water is going through the
over heat alarm in sounding....water is going through the engine … read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade School
21,048 satisfied customers
Over heats at hih. My 200hp blackmax over heats at high rpm
My 200hp blackmax over heats at high rpm new impeller and houseing new poppet valve thermoststa look good ive ran it with and without thermostats still runs hot i removed powerhead and changed the grommet that seals the pic up tube don't know what elese to do ?help … read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade School
21,048 satisfied customers
I think it is over heating. 2003 Merc elpt 75 4s. It set the
It set the alarm and I shut it down. Restarted and no water coming out the pee hole. … read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade School
21,048 satisfied customers
New used boat first time out and after 10 minutes of running
New used boat first time out and after 10 minutes of running a buzzing sound goes off like an alarm... the previous owner had just installed a new upper and lower unit... is it over heating? … read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade School
21,048 satisfied customers
I have a 40hp mercury efi four stroke outboard. I recently
I have a 40hp mercury efi four stroke outboard. I recently hit a sandbar and had immediate engine issues, my local mechanic has replaced the impeller and impeller housing and done a full flush but aft… read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade School
21,048 satisfied customers
My brother has a 2000 Yamaha 2 stroke salt water series. His
My brother has a 2000 Yamaha 2 stroke salt water series. His over heat alarm has started going off the beginning of this season. We have changes thermostats, impeller,poppet valve and removed the head… read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade School
21,048 satisfied customers
90 hp 2 stroke yamaha engine with a buzzer alarm! Just put
Just put the boat into the water, drove a short distance. Left engine on for 5 min. Waterourlet was blocked when i returned by some seaweed or similar. Opened up the outlet so water flows bow. Alarm still on. White smoke out of engine at the back of it! Left it now to cool down.… read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade School
21,048 satisfied customers
I have a 2000 50 horse. The alarm is sounding but can't
I have a 2000 Johnson 50 horse. The alarm is sounding but can't locate the problem. Squeezed bulb and that seemed to work once, but last time out, it didn't. disconnected line to motor and squeezed bu… read more
Tan
Tan
MerCruiser Certified Technician
Certified Marine Technician
11,409 satisfied customers
I have my boat in the shop. I have a 1989 50 HP us marine force
I have my boat in the shop. I have a 1989 50 HP us marine force motor. I've changed the impeller an . No water out the telltale. Took it to shop and he changed the head gasket and impeller pin still n… read more
Tan
Tan
MerCruiser Certified Technician
Certified Marine Technician
11,409 satisfied customers
I am looking at a used boat that has a mercury 2002, 150 hp
I am looking at a used boat that has a mercury 2002, 150 hp 2 stroke saltwater series. I remember reading issues regarding heat alarms on mercuries and was doing a little research on the subject. Is t… read more
Tan
Tan
MerCruiser Certified Technician
Certified Marine Technician
11,409 satisfied customers
hi i have a 1998 115hp yamaha outboard ,when i hole a full
hi i have a 1998 115hp yamaha outboard ,when i hole a full throttle for a 2,3 minutes 5500 to 5650 rpm look like water pump stop working and water go up the manifold and steam come out the engine and … read more
Charles
Charles
Certified Mercury Tech
5,638 satisfied customers
Have a Mercury 2005 60 horse EFI fourstroke tiller model. Since
Have a Mercury 2005 60 horse EFI fourstroke tiller model. Since the last fuel up after a little time at mid range rpm's the engine will cut out a little and then run fine again but the alarm goes off … read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade School
21,048 satisfied customers
I have a Mariner Outboard 175 and its over heating and the
I have a Mariner Outboard 175 and it's over heating and the alarm keeps going off. We put a new umpeller, changed lower unit/lube, and cleaned the plugged pop up valve and put it back together and it … read more
Tan
Tan
MerCruiser Certified Technician
Certified Marine Technician
11,409 satisfied customers
I have a year 2000 Optimax 115 Hp outboard (V6 2.5 liter)
I have a year 2000 Optimax 115 Hp outboard (V6 2.5 liter) When I bought it 11 years ago it immediately had overheating problems - and apparently there was a kit modification to solve this, associated … read more
Jeff G.
Jeff G.
Marine Mechanic
Vocational, Technical or Trade Scho
4,730 satisfied customers
Hi I have 1989 wave runner GP760 . once an awhile she runs
Hi I have 1989 wave runner GP760 . once an awhile she runs hot ? is their a thermostate or sensor that I could check ? the bottom intake is clean . no seawweed or fod in the cage. the water coming out… read more
Jeremy R.
Jeremy R.
5,362 satisfied customers
I have a 1998 Promax 225 that has the overheat sensor going
I have a 1998 Promax 225 that has the overheat sensor going off we have tested the water temp with a thermometer and it is in the normal range… read more
Jeff G.
Jeff G.
Marine Mechanic
Vocational, Technical or Trade Scho
4,730 satisfied customers
I have a 2006 sun tracker party barge with a 90 hp optimax.
I have a 2006 sun tracker party barge with a 90 hp optimax. today when I put it in the water and ran it for about 15 minutes or so there was a lound peirceing alarm that came on and off again in the c… read more
Jason
Jason
Associate Degree
210 satisfied customers
I recently had a mechanic makes some repairs to my 200hp Johnson
I recently had a mechanic makes some repairs to my 200hp Johnson outboard. Last week the bearing shattered and now I need to replace powerhead, he says. My engine always ran good just idled rough. He … read more
Jeff G.
Jeff G.
Marine Mechanic
Vocational, Technical or Trade Scho
4,730 satisfied customers
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Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

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