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Yamaha Alarm ?

Old 08-13-2011, 10:03 AM
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Default Yamaha Alarm ?

Hello, I have a 2003 Seaswirl CC with a 2003 150 yamaha 2 stroke. I've owned from new and have had very little issues with it. Today we were out trolling for blues and then ancored up for about 30-45 minutes. When I started the engine, it had an alarm. It had plenty of oil and gas and a steady water stream from the engine. I ran it back to the dock and it ran fine, the rpms didn't cut down. I have never changed the impeller or therostat or anything major like that, and I know I should be. Any ideas what it could be? Thanks in advance.
Old 08-13-2011, 11:53 AM
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Originally Posted by seaswirl21 View Post
Hello, I have a 2003 Seaswirl CC with a 2003 150 yamaha 2 stroke. I've owned from new and have had very little issues with it. Today we were out trolling for blues and then ancored up for about 30-45 minutes. When I started the engine, it had an alarm. It had plenty of oil and gas and a steady water stream from the engine. I ran it back to the dock and it ran fine, the rpms didn't cut down. I have never changed the impeller or therostat or anything major like that, and I know I should be. Any ideas what it could be? Thanks in advance.
There are only two alarms on that motor, low oil in engine tank or overheat. Did the alarm stop after a while?
Low oil in main tank alarm will force motor into safe mode. Temp alarm will not.
OK, there is a third alarm for cranking the motor with the kill lanyard unclipped. So if you shut off when you heard the motor and checked that everything was OK and perhaps you played with the kill switch, it may not have been seated all the way but if that were the case, the alarm wouldn't sound again.
Old 08-13-2011, 12:15 PM
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I always love the fact guys run them anyway then ask what the alarm was and did I hurt anything
Old 08-13-2011, 12:29 PM
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Sounds like the kill switch wasn't snapped in.

How many alarms on a 2005 Z200TXR?
Old 08-13-2011, 01:18 PM
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Thanks lostsinker and cedarholm. I will check it tomorrow to see if it could be an overheat issue. Sorry eggsucker if you couldn't understand my post, but I didn't ask if I hurt anything and I was about a mile from my dock and didn't panic and jump overboard and call for a tow. Next time you read a post, read it one word at a time, slowly.
Old 08-13-2011, 03:04 PM
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Originally Posted by seaswirl21 View Post
Thanks lostsinker and cedarholm. I will check it tomorrow to see if it could be an overheat issue. Sorry eggsucker if you couldn't understand my post, but I didn't ask if I hurt anything and I was about a mile from my dock and didn't panic and jump overboard and call for a tow. Next time you read a post, read it one word at a time, slowly.
If the motor sat for 45 minutes after trolling, itis unlikely it was an actual overheat issue especially if the alarm didn't sound while trolling. It could be a bad temp sensor but those are failry rare. Your motor may heat up up bit after shutting it off. You may have been on the limit of high temp, but I would expect it to cool off anough after 45 minutes to not trigger an alarm. Do you flush the motor with fresh water after use? It may have salt buildup but to check you will need to pull a t-stat or two.
Old 08-13-2011, 03:21 PM
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Originally Posted by seaswirl21 View Post
Thanks lostsinker and cedarholm. I will check it tomorrow to see if it could be an overheat issue. Sorry eggsucker if you couldn't understand my post, but I didn't ask if I hurt anything and I was about a mile from my dock and didn't panic and jump overboard and call for a tow. Next time you read a post, read it one word at a time, slowly.
Did the alarm sound immediately as you turned the key?

Did you mess with the kill switch and then restarted?

An alarm after sitting off for 45 minutes is weird.
Old 08-13-2011, 05:38 PM
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Lostsinker, I'm going to change my thermostats. That would be the fastest and cheapest thing to start with. Cedarholm, the alarm was right away after starting. I pulled the kill switch and that wasn't the problem, and I agree, 45 minutes and the engine must of been long enough. I just checked it 7 hrs later and the alarm came on. Thanks again guys.
Old 08-13-2011, 06:16 PM
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Let us know.

BTW, impellers aren't difficult to replace.

Removing/reinstalling the lower unit is the part that takes patience. (And the service manual.)
Old 08-13-2011, 06:45 PM
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Not trying to hijack this thread and I'm sure this will get me crushed, but I'll put it out there anyway. I have recently purchased my first saltwater boat with twin 1998 yamaha saltwater series 2 engines. The engines were thoroughly evaluated by a well respected yamaha service center prior to purchase and got a perfect review. A marine surveyor passed the boat. I sea trialed the boat first with the owner and then with owner and the surveyor. Each and every time the ignition key for each engine is switched to the on position, a beeping sound is emitted until the engine is started. There is no sound emitted while the engines are running. If either engine cuts out with the key in the on position, the beeping sound comes on again. I assumed this was normal, but after reading this thread I got worried. Is this a problem, an alarm as described above?
Old 08-13-2011, 06:49 PM
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Originally Posted by seaswirl21 View Post
Lostsinker, I'm going to change my thermostats. That would be the fastest and cheapest thing to start with. Cedarholm, the alarm was right away after starting. I pulled the kill switch and that wasn't the problem, and I agree, 45 minutes and the engine must of been long enough. I just checked it 7 hrs later and the alarm came on. Thanks again guys.
Its not t-stats if it happened after sitting 7 hours. Do you have the command link gauges? If so, do any 'alarms' display: Flashing symbols etc. I mentioned thermo sensors. They are not the thermostats. They are press fit into rubber cups , one on each head. That can easily be removed, just pull out, disconnect the connector and test with a pot of hot water and an ohm meter.
Old 08-13-2011, 06:54 PM
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Originally Posted by rcm55 View Post
Not trying to hijack this thread and I'm sure this will get me crushed, but I'll put it out there anyway. I have recently purchased my first saltwater boat with twin 1998 yamaha saltwater series 2 engines. The engines were thoroughly evaluated by a well respected yamaha service center prior to purchase and got a perfect review. A marine surveyor passed the boat. I sea trialed the boat first with the owner and then with owner and the surveyor. Each and every time the ignition key for each engine is switched to the on position, a beeping sound is emitted until the engine is started. There is no sound emitted while the engines are running. If either engine cuts out with the key in the on position, the beeping sound comes on again. I assumed this was normal, but after reading this thread I got worried. Is this a problem, an alarm as described above?
Some Yamis beep when the ignition is turned on. Its sort of a test of the alarm. Mine doesn't, it only beeps if you turn on with kill switch dissengaged oran overheat condition.
Old 08-13-2011, 06:57 PM
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wasn't aimed just at you and obviously it isn't a temp issue after 45 minutes - you need to spend your time and money looking siomewhere else.
Old 08-14-2011, 04:45 AM
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I have the yamaha gauges that show oil level and a overheat alarm and everything is fine. Never lost any RPMs going back to my dock after the alarm sounded. I went and bought the big Seloc repair manual last night and it says you will loss rpms with oil and overheat issues. I don't mind working on this myself at a moderate to difficult level since the mechanics I call are pretty much booked for a couple of weeks before they can even look at it. Sorry eggsuckindog, but I was having a bad day and didn't want to be looked at like a dummy
Old 08-14-2011, 06:23 AM
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Might be water pressure control valve. If your alarm sounded when the engine was at idle and slow speed then went away when the engine speed increased it was probably this little gizmo on the backside of the block. The valve opens at high speed to regulate pressure. If it sticks open then at low speed too much cooling water is by-passed.

If your alarm went away after speeding up this could be it. Costs about 8 bucks to buy and replace the grommet(35) and gasket(36). Mine stuck on my '00 150hp OX66. When I disassembled the cover the plastic valve (33) was stuck in place open because the grommet was swolled- (I hate when that happens). http://www.boats.net/parts/search/Ya...202/parts.html
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Old 08-14-2011, 07:19 AM
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rtmadm00, Thanks for the info, but the alarm never shut off at idle or at a high rpm or with the key in the on position. I did run it at a higher speed while returning to dock to see if the rpms would go into safe mode, but it ran fine, almost like nothing is wrong with it except the buzzing sound.
Old 08-17-2011, 10:04 AM
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It was the thermo switch / thermo sensor. Thanks everybody.......
Old 08-17-2011, 11:47 AM
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Originally Posted by seaswirl21 View Post
It was the thermo switch / thermo sensor. Thanks everybody.......
Thanks for posting resolution. Just for info did you follow this advice from lostsinker to get to there?

"I mentioned thermo sensors. They are not the thermostats. They are press fit into rubber cups , one on each head. That can easily be removed, just pull out, disconnect the connector and test with a pot of hot water and an ohm meter. "
Old 08-18-2011, 03:21 AM
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I did follow everybodys advice. I did pulled the wires to the sensor and the alarm shut off. Also a certified yamaha mechanic was at the dock next door and he confirmed it. He is also going to do alot of the maintenance issues I NEED done, like the vts filter, thermostats, thermo sensors, plus all the fuel filters, ect. In the spring, finally the water pump system. Thanks again, I learned alot.......
Old 08-22-2011, 06:06 AM
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Originally Posted by rcm55 View Post
Not trying to hijack this thread and I'm sure this will get me crushed, but I'll put it out there anyway. I have recently purchased my first saltwater boat with twin 1998 yamaha saltwater series 2 engines. The engines were thoroughly evaluated by a well respected yamaha service center prior to purchase and got a perfect review. A marine surveyor passed the boat. I sea trialed the boat first with the owner and then with owner and the surveyor. Each and every time the ignition key for each engine is switched to the on position, a beeping sound is emitted until the engine is started. There is no sound emitted while the engines are running. If either engine cuts out with the key in the on position, the beeping sound comes on again. I assumed this was normal, but after reading this thread I got worried. Is this a problem, an alarm as described above?
To answer your question, I have a pair 1994 150's, they each beep a set number of times when the key is turned on (always took it to be a warning/alarm check), quite while running, if an engine cuts out, yes the alarms come on to warn you that it cut out. This is normal behavior.

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