WARNING LIGHTS

[jgm7739]

I have a 1986 115 yamaha, with Yamaha gauges in the boat. On the tach, there are three indicator lights. <br />From left to right:<br />-red: with an empty circle in it<br />-orange: with what seems to be an oil can, so I assume this is a low oil indicator which has come on before when low on oil.<br />-green-: with a full circle inside<br /><br />I have no idea what the red and green indicators are for. The green is always on so I can only assume again that this is normal. However, yesterday. The red indicator came on acompanied by a loud buzzer. With this, the engine ran rough at anything above 2000 rpm. Otherwise it seems fine under said rpm range. The oil level seemed sufficient. Thankfully I wasn't that far from the boat ramp, so I 'putted' in. Also, my fuel level at the time was scarily near empty. I'm hoping, but my only guesstimation is that this red light is associated with low fuel levels. I turned on the ignition this morning and the buzzer was still present. So I guess I can rule out an overheated engine.....<br /><br />Some help, any help please.<br />Thankyou!

 

[retnug]

Re: WARNING LIGHTS

I believe the green means you have plenty of oil. I assume this is an oil injected engine. The yellow means you should add oil and the red means you are very low and the motor may limit you to 2000rpm to conserve oil. This may also be an indicator of a clogged oil line.<br /><br />Gunter

 

[jgm7739]

Re: WARNING LIGHTS

Thanks Gunter. The reservoir is about 1-3 to 1/2 full or so. I'll have to trace the line back perhaps to see if I can find a kink of some sort.<br /><br />The yellow has come on before when the oil reservoir was empty, or close to empty. <br /><br />Thanks for the tip

 

[Bozo]

Re: WARNING LIGHTS

Amazing, I came here to ask a very similar question. <br /><br />Mine is a '90 Yamaha 115. It exhibites the same alarm except it does not stay on when I let off of the throttle. <br /><br />The oil tank has oil and the water indicator stream seems to be good.<br /><br />What else would cause such an alarm to be set off?

 

[jgm7739]

Re: WARNING LIGHTS

BOZO, be sure to keep me posted if you find a solution, as will I!!!!<br /><br />I started her up today, she starts fine. However the buzzer was still present when I turned the ignition on (before starting).......I hope it's nothing big$$$$$$

 

[Bozo]

Re: WARNING LIGHTS

JGM...I pulled out the thermostats tonight to check them and placed them in some hot water. They both opened up properly and then closed as the water cooled. And I also made sure nothing was clogging the water pickup. <br /><br />Unless my water pump is failing at a high rpm, I don't think it is a cooling issue. I would think that the water pump would work better at a higher rpm than lower if it was defective. That is just a guess.<br /><br />So that leaves the oil system. I think I might poke around with the oil tank and see if I can see any type of obstruction around the filter in the bottom of the tank.<br /><br />Keep me updated on what you try.

 

[jgm7739]

Re: WARNING LIGHTS

Well, I'm really not sure what to try. I have oil in the tank, I traced the line back from the engine to the tank...no kinks. The only thing that comes to mind is an obstruction in the line or that perhaps it may be the oil pump, if there is one. I assume there is some mechanism that sends oil from the reservoir to the engine. I hear it engage when I turn the ignition on, but who knows if it's working properly. My next step I guess is to seek the help of a Yammie mechanic. I called yesterday and they're unable to look at it til next week. 4TH OF JULY WEEKEND IS COMING, I'm bummed.....

 

[jim dozier]

Re: WARNING LIGHTS

I have a Suzuki that has an inline oil filter which is about the size of a US 50cent piece. If it gets clogged and slows down the flow enough the engine will set off an alarm an kick in a rev limiter. I don't know the details of your Yamaha, but perhaps it is similar and there is a filter in the line or at the oil tank or there is a sock in the oil tank that is restricting flow and setting off the alarm despite the fact that there is plenty of oil in the tank.

 

[Bozo]

Re: WARNING LIGHTS

jgm779,<br /><br />Hopefully your problem has been found by now, I found mine today.<br /><br />I had a loose connection on my battery. Silly huh. Check you battery connections and see if they are tight. If not, then the electronices, including the oil sensor, may not be getting enough juice to work properly. <br /><br />I found out the problem today at the lake. I was still having the problem intermittently. I would be cruising along, the warning light would go off and buzzer sound and as soon as I would let off the throttle and came off plane it would go away. Go back on plane and 5 minutes later, same thing.<br /><br />One of the times that I stopped to pull the cowl off to ensure that the oil resevior on the side of the motor was full, it wouldn't start again. Looked at the battery connections and my negative had worked loose. Tightened it up and no more problems the rest of the day.