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  1. #1

    96' slt780 starting issue

    I posted earlier about the ski not even turning over. Well me and mt dad got that settled. It was the relay that switched over when pressing the start button down. It was all rusted out and wouldn't complete the circuit. Well with that aside the ski turns over. The problem now is when you try and start it the volts drop extremely quick and doesn't have the power to turn over. The battery is fully charged and the volts go back up within a few seconds of letting it sit. The mfd flickers when turning It over. I don't know where to look next.

    Another thing I need is a fuel pump. Mine is completely shot. Ideas for both would be greatly appreciated! Thanks in advance
    Jeff


  2. #2
    Click avatar for tech links/info, donation request K447's Avatar
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    Quote Originally Posted by Jeff_Loomis View Post
    ... when you try and start it the volts drop extremely quick and doesn't have the power to turn over. The battery is fully charged and the volts go back up within a few seconds of letting it sit. The MFD flickers when turning it over...

    Another thing I need is a fuel pump. Mine is completely shot...
    Battery is probably no good. A battery that is weak or aged internally, even after charging, will not be able to deliver the voltage under load.

    Battery voltage without load is meaningless. What matters is the battery's ability to deliver the voltage while cranking the engine. A strong battery will deliver more than 10.6 volts while cranking the engine.

    If you can, buy a factory sealed AGM type battery, such as Deka ETX16LM, or Odyssey PC625. Both are high quality AGM (Absorbed Glass Mat) type batteries, which are excellent for PWC use.

    John Zigler has the fuel pump you need. His contact info can be found from my signature link, under Parts Sources.

  3. #3
    She likes the bike. But the ski gets her wet!!!! xlint89's Avatar
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    That or the starter is shot and drawing WAYYY too much amperage.

    Also make sure your battery cables/connections are clean and tight.

    As for the fuel pump, the 780 came with the H.O 65L pentagon. Those can be rebuilt for around $20. Try John Zigler or Sharp's marine for the rebuild kit.

  4. #4
    john zigler's Avatar
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    i have genuine mikuni pump kits here for your 780. new.
    many USED parts including good starter relays if you need.
    new sealed batteries, etc.

    please email, or call if i can help.

  5. #5
    Click avatar for tech links/info, donation request K447's Avatar
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    Quote Originally Posted by john zigler View Post
    i have ... new sealed batteries ...
    What brand/type of batteries would these be?

    AGM?

  6. #6
    john zigler's Avatar
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    Quote Originally Posted by K447 View Post
    What brand/type of batteries would these be?

    AGM?
    YES, these are AGM. they are "power source" brand, as distributed by lynn vic. i have had excellent results with them here in my shop. lynn vic actually supplies MANY other company's with these, private label. RIVA, batteries plus, WPS, and others.
    75.00 + s&h
    Last edited by K447; 05-02-2011 at 01:36 AM.

  7. #7
    Click avatar for tech links/info, donation request K447's Avatar
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    Quote Originally Posted by john zigler View Post
    YES, these are AGM. they are "power source" brand, as distributed by lynn vic. i have had excellent results with them here in my shop. lynn vic actually supplies MANY other company's with these, private label. RIVA, batteries plus, WPS, and others.
    75.00 + s&h
    John, you gotta expand that web site you have

    Glad to hear you are carrying a decent quality AGM battery.
    Lynn Vick products, Marine and PWC batteries

    Apparently Lynn Vick suggests that Polaris PWC use the WP16CL-BS model

    Last edited by K447; 05-02-2011 at 01:36 AM.

  8. #8
    john zigler's Avatar
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    hi again Keith.

    yes, that is the exact battery i have here on hand.

    Please remember, I am a FULL service shop here. The Internet is just a small part of what i do, as far as sales go.

    I stock both NEW, and used parts for all makes of machines. Yamaha, Kawasaki, Polaris, Honda, Sea-doo, etc. I have easily a couple hundred thousand dollars in inventory. (new parts).

    I do try to keep items on the site, but it is hard. I guess i should add the batteries huh?

    I always tell people to ask, if you need something, because i have WAY more here than shown on the site.

    zig
    Last edited by K447; 05-02-2011 at 01:35 AM.

  9. #9
    Quote Originally Posted by xlint89 View Post
    That or the starter is shot and drawing WAYYY too much amperage.
    How could I tell if the starter is drawing to much amperage?
    As for the battery connections I have double and triple checked to make sure they are clean and tight.

    Sorry for the long wait to get back! I have been caught up in school and did not get the emails to my phone, which is odd! Thanks to all Who have posted!

  10. #10
    She likes the bike. But the ski gets her wet!!!! xlint89's Avatar
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    Sounds like it from your description. Do you have another known good battery to test with? That's your easiest route.

    If that doesn't work out, then I would consider finding another known good starter.

    Also try this, remove your spark plugs and and coupler cover. Then try to turn the engine over by hand. Should turn pretty easily. If there's a lot of drag, something is wrong. (starter Bendix or jet pump bearings)
    Last edited by K447; 05-02-2011 at 01:37 AM.

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