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  1. #31
    Click avatar for tech links/info K447's Avatar
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    Quote Originally Posted by Mr. Matrix View Post
    Quote Originally Posted by K447 View Post
    Quote Originally Posted by Mr. Matrix View Post
    Quote Originally Posted by ripcuda View Post

    The Weber oil pressure switch is a single wire that goes to ground when oil pressure drops. From the service manual, it looks as though that wire to the oil pressure switch goes directly to the NGI



    Cheers!
    What is displayed on the Dash when there is low oil pressure? Just the little oil symbol? There is no oil pressure warning on the 140 display.
    Try grounding that input pin and see what the display does.

    You can see all the possible LCD symbols by taking a photo just as the display wakes up and self tests all the LCD segments. Gotta be quick with the shutter button!

    I will try that, however I need to remove the display from the hood to do it. There is no wire in that pin on my harness.

    At least in my application, since I already have a gauge in the left mirror, I am going to install a warning LED in the mirror next to the gauge. I will only have to run one more wire there to do it. I will run the pressure switch on the ground wire, through the reverse switch so I also get the rev limiter when the pressure drops.
    You may need an isolation diode to prevent back feeding the LED when using reverse in the normal manner.

    Do you have a source for a super bright LED that can be seen in daylight and is waterproof?

    LED with integral flashing mode would be better than a warning light that just illuminates.

  2. #32
    MSX 150 guy lives on Mr. GP1800's Avatar
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    This should work.....

    https://www.superbrightleds.com/more...attributes/104

    Choose the blinking red option

  3. #33
    ripcuda's Avatar
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    MSX 110/150 display shows an 'oil can' when low oil pressure is triggered.



    Cheers!
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  4. #34
    MSX 150 guy lives on Mr. GP1800's Avatar
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    Quote Originally Posted by ripcuda View Post
    MSX 110/150 display shows an 'oil can' when low oil pressure is triggered.



    Cheers!
    That looks just like the 140 display. I would assume the oil symbol would flash on the 140 display as well if you ground pin 6

  5. #35
    Click avatar for tech links/info K447's Avatar
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    Quote Originally Posted by Mr. Matrix View Post
    This should work.....

    https://www.superbrightleds.com/more...attributes/104

    Choose the blinking red option
    Beware of LED products that do not post actual specifications for the brightness. I suspect that particular blinking red LED will have marginal brightness in daylight, especially from off axis viewing angles.

    Since the application is an urgent warning to the rider, it needs to be ridiculously bright so that the rider will notice it right away. Having the RPM limiter kick in at the same time will help clue the rider in, depending on who is riding and what the rider is doing at the time.

    Brightness is spec'ed in a few ways, such as lumens. No lumens, candlepower, or other brightness spec that I could see.

    Using a resistor inline to control LED current is another clue that this may be a modest LED. There are some really nice LED around that have a current control chip built right into the LED. No need for resistor and consistent brightness across the voltage range.


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