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  1. #1
    Top Dog
    Join Date
    Nov 2006
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    Twin Lakes ID
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    1,304

    Nice looking $20 tachometer from Harbor Freight...

    Like many others here I have been looking for a way to add a tach to my 96XP. This may be a really inexpensive solution.

    Harbor Freight has started carrying a nice looking series of two inch gauges for $20 each. One is a tachometer that goes to 8000 RPM, perfect for mid-90's Rotax engines. Its pickup connects to the low voltage side of the ignition coil. If you switch it for 4-cylinder operation I believe it will read accurately for 2-stroke Rotaxes.

    Here's a link to the webpage:

    http://www.harborfreight.com/cpi/cta...emnumber=98480

    My 96XP has a roughly two-inch circle on the fiberglass in front of the seat that could be cut out to accommodate such a gauge. I don't know what's behind it, or how much depth is available (the gauge requires 2-3 inches).

    I haven't personally seen one of these gauges yet, but thought I'd share the idea.
    1996 XP (787 engine)
    1997 GSX (787 engine)
    Mostly factory stock

  2. #2
    Tech Guru PWCToday.com Is My Home Away From Home Watercraft Magic's Avatar
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    Glendora, California
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    Re: Nice looking $20 tachometer from Harbor Freight...

    That "circle" in your dash is where Sea Doo put the info guage on the 1995 XP 800.
    email Chris at Watercraft Magic cdofixr1@live.com

  3. #3
    Tech Guru PWCToday.com Is My Home Away From Home Watercraft Magic's Avatar
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    Re: Nice looking $20 tachometer from Harbor Freight...

    That volt meter might stop about 2 million questions here about voltage regulators/rectifiers.

    What would be handy is a single wire inductive tach and a voltmeter mounted on a portable holder to attach to pwc's to do quick diagnostics at home in the garage.......
    email Chris at Watercraft Magic cdofixr1@live.com

  4. #4
    Top Dog
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    Re: Nice looking $20 tachometer from Harbor Freight...

    Then hopefully there is enough depth there to hold a gauge in the 96 model! I can't remember offhand but will check next time I'm at the lake.
    1996 XP (787 engine)
    1997 GSX (787 engine)
    Mostly factory stock

  5. #5
    Top Dog Landworks's Avatar
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    Re: Nice looking $20 tachometer from Harbor Freight...

    I'd like to hook up a temp guage.


    3 96 XP's
    2000 XPL
    2002 XPL 67mph GPS
    twin pipe build up link
    http://www.pwctoday.com/showthread.php?t=204126

    If you want more inches STROKE IT!

  6. #6
    Tech Guru PWCToday.com Is My Home Away From Home Watercraft Magic's Avatar
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    Re: Nice looking $20 tachometer from Harbor Freight...

    There is plenty of space there to hold that guage.

    Temp guage ? Easy enough, just replace oem temp sender to beeper with the proper temp sensor for that temp guage. Problem is matching thread sizes in head. I made an aluminum water manifold with a temp sensor and connected it to the water line leaving the head at the back of the head, then used an aftermarket boat water temp guage like that one from Harbor Frieght. I kept the beeper and overheat sensor on there too..
    email Chris at Watercraft Magic cdofixr1@live.com

  7. #7
    Top Dog
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    Twin Lakes ID
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    Re: Nice looking $20 tachometer from Harbor Freight...

    Quote Originally Posted by Bill O'Neal
    That volt meter might stop about 2 million questions here about voltage regulators/rectifiers.
    Agreed, but so would Harbor Freight's $3 DVM! [grin]
    1996 XP (787 engine)
    1997 GSX (787 engine)
    Mostly factory stock

  8. #8
    Top Dog Landworks's Avatar
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    Mar 2007
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    Re: Nice looking $20 tachometer from Harbor Freight...

    Quote Originally Posted by Bill O'Neal
    There is plenty of space there to hold that guage.

    Temp guage ? Easy enough, just replace oem temp sender to beeper with the proper temp sensor for that temp guage. Problem is matching thread sizes in head. I made an aluminum water manifold with a temp sensor and connected it to the water line leaving the head at the back of the head, then used an aftermarket boat water temp guage like that one from Harbor Frieght. I kept the beeper and overheat sensor on there too..
    I am going to try that. What did you use to make the manifold?


    3 96 XP's
    2000 XPL
    2002 XPL 67mph GPS
    twin pipe build up link
    http://www.pwctoday.com/showthread.php?t=204126

    If you want more inches STROKE IT!

  9. #9
    Frequent Poster seadooVA-NC's Avatar
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    Oct 2007
    Location
    Virginia Beach, VA
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    53
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    178

    Re: Nice looking $20 tachometer from Harbor Freight...

    Nice looking tach. Wish they had a $20 trim gauge...
    1996 SPX
    bone stock
    trim works, gauge doesn't
    no fancy paint
    ridden every weekend
    What more do you need?

  10. #10
    Top Dog
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    Nov 2006
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    Twin Lakes ID
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    Re: Nice looking $20 tachometer from Harbor Freight...

    You could probably make the voltage gauge work. I believe the trim uses a varying resistance based on a magnet passing by reed switches that switch in different fixed resistors. You could create a voltage divider that would yield a variable voltage that would move the voltmeter.
    1996 XP (787 engine)
    1997 GSX (787 engine)
    Mostly factory stock

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