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  1. #1

    Join Date
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    96 SLT 780 Project

    Just picked up another ski. Pictures below.

    So far going through it I have found the following things:

    Power cable to MFD cut at handle bars - Fixed
    MFD Fuse blown - Fixed
    Hood fiberglass cracked
    Grey wire in CDI cut, with electrical tape on it. Any idea's where this goes?
    Dirty as can be

    PO said the PTO cylinder is bad and will be replaced. Haven't cracked it open yet to look at it.

    It does start and run on the other 2 cylinders, so not all that bad considering.












  2. #2
    Canadian Beaver Inspector jkindt's Avatar
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    I wouldn't try running it again until you check out that piston and cylinder. It may run on 2 but you may have a hole in the other piston or other damage that could be spreading metal shavings all over your crank bearings. Take it apart, check it out, and you may just save yourself a pricy crank rebuild.

  3. #3

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    Doing that now actually.

    Got the MFD working! Was just the typical fuse. Well, not to mention the power wire that the idiot PO cut.

    At least one thing has been acomplished and completed off the list.

  4. #4

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    Here are pictures of the pistons. PTO is definatly shot. Not only does it have a divit in the middle, but the side has been burned through.

    Looks like I need to adjust the carbs, which a rebuild was planned along with new lines.

    Heads look ok though.

    Mag:


    Center:


    PTO:


    Heads:

  5. #5

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    Sep 2009
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    Anyone have thoughts on where the wires that are circled go to or what they are for?

    The lower one looks to have been cut at one point and has electrical tape on it, which leads me to think that it didn't come from the factory that way.

    Also, how does everyone think the rest of the pistons look?


  6. #6
    Click avatar for tech links/info, donation request K447's Avatar
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    Quote Originally Posted by stl_sl650 View Post
    Anyone have thoughts on where the wires that are circled go to or what they are for?

    The lower one looks to have been cut at one point and has electrical tape on it, which leads me to think that it didn't come from the factory that way...
    What circled wires?

  7. #7

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    opps...

    Updated with picture.

  8. #8
    Click avatar for tech links/info, donation request K447's Avatar
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    Quote Originally Posted by K447 View Post
    What circled wires?
    Quote Originally Posted by stl_sl650 View Post
    opps...

    Updated with picture.
    Can't really tell from that photo.

    What colors are the disconnected wires?

  9. #9

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    The lower is a grey wire.

    Upper is grey with a blue stripe (I think, have to check again tomorrow).

  10. #10
    She likes the bike. But the ski gets her wet!!!! xlint89's Avatar
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    Sorry, didn't see this post.

    The grey wire is the limp mode wire. It actually attaches to the TAN terminal on the circuit board. Seriously, I'm not kidding.

    If it was disconnected, it prob has the bad float or something that made the PO eliminate it, and maybe he thought disconnecting the MFD would work too?

    MAG piston not too bad, I'd like to see a little more wash than that though. Roughly another 1/4 turn OUT on the hi speed screw.

    CEN WAY rich. Turn the hi speed IN about 3/8

    That PTO is shot. I bet you're going to have alot of debris in the bottom of the case. Does the crank feel "gritty" when turning it by hand?

    When I did that to my piston, I got alot of metal in my bearings.

    Record where your carbs are set right now before you rebuild them. You can then see how they compare to the manual, and set them back to where they are now.

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