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  1. #1

    Master Disconnect Switch

    Hey guys here is a little mod that comes in handy whenever a battery disconnect is in order. Just flip the switch and it opens the entire electrical circuit from the battery. Cole Hersee master disconnect switch, marine version is only 30 bucks. Also works as a security system, with switch open nobody is going to ride off on your ski. Just splice into the main battery ground cable and mount wherever you like. Should work great for winter storage or any long term storage, no need to disconnect cable from battery just flip switch. Heres my install on my SS FZR. NHRA mandates these for safety reasons, and its nothing new, just a great addition for service work, safety and security.
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  2. #2

    Join Date
    Jul 2005
    Central North Carolina
    These work great to protect your ski for anyone who has had a starter solenoid switch hang in the on position also, Tommy Jordan
    Last edited by K447; 09-27-2014 at 09:40 PM.

  3. +1 by:

  4. #3
    Yes it will Tommy, any emergency shutoff is there with the flip of a switch. I always disconnect my battery when it sits for any length of time and had worn out the lead terminals on the battery from so many cable disconnects.

  5. #4
    Ale's Avatar
    Join Date
    Feb 2014
    it's the first mod I did when purchased my FZR.
    I don't like current always on in my pwc.
    it could be dangerous.
    it could be discharge battery
    anyone could be run my starter
    anyone could be look at my hour meter (205 hr now)

  6. #5
    Gus13letter's Avatar
    Join Date
    Apr 2008
    Tampa Bay, FL
    Lookin good Ross!

  7. #6
    Click avatar for tech links/info, donation request K447's Avatar
    Join Date
    Jul 2007
    near Toronto, Canada
    Quote Originally Posted by Ale View Post
    it could be dangerous...
    anyone could be look at my hour meter ...
    Danger comes in many forms. A failed disconnect switch (resistive or burned/damaged/loose contacts) can strand the machine on the water. To bypass a failed switch installed in the battery cable requires tools and ability to work under the seat, which may be difficult in rough waters.

    Interesting that the switch is installed in the battery negative cable. Many battery disconnect switches are installed in the positive battery cable. I can see reasons to choose the negative cable.

    To prevent engine starting yet reduce the risk of a failed switch causing stranding the disconnect could be inserted into the starter cable. Engine will then continue to run with a bad switch, only (re)starting would be affected. And jumping a bad switch to allow starting can be done (carefully) using any metal tool, once started the engine will keep running.

    Different approaches, different risk profiles, different owner priorities.

    Why is the hour meter important?

  8. #7
    Hi Ross, i see you conected the switch to the negative, you did this because its easyer to locate the switch closer to the negative cables?? Any advantage if i do the same but tho the posistive? Thanks.

  9. #8
    Either + or - will work. Using the negative you don't risk touching the open terminals on back of switch and causing an arc. Bit of a safety advantage with negative is all I see.

  10. #9
    bscpaint's Avatar
    Join Date
    Apr 2013
    LongIsland NY
    Perko makes a nice compact plastic face switch that I used to use on my gpr, I completely forgot about this so I think I'm going to do this again

  11. #10
    abracadabra's Avatar
    Join Date
    Oct 2008
    Wellington, FL United States of America

    Thumbs up Battery Disconnect

    This is what i did on my 2014 FX-SVHO, Julio...Click image for larger version. 

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  12. +1 by:

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