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  1. #1

    Thumbs down Polaris SLX 780 info

    Hi all,

    My first post on here!

    Anyhow I have recently purchased a slx 780, it has a broken jet pump/impellor which I am currently replacing. The engine etc all seems happy however.

    This machine has sat for a long time so I'm just after some info
    On any things I may need to look out for?

    I got told the fuel pumps can be dodgy getting enough fuel to no 3 cylinder and some people run 2 pumps. Anybody experience this?

    Also are the oil pumps reliable or am I better scrapping it ?

    I am a true believer in if it ain't broke don't fix it , but being my first ski I'd like to improve reliability where possible.


    Any info / help on this model would be great.


  2. #2
    Also my cylinder compressions are all 150 is this ok? What's the norm?

  3. #3
    I transcend race Hombre! TBone14's Avatar
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    I have fixed up a couple of these, and it will be a reliable ski for you.....

    I would replace all fuel lines and rebuild the fuel pump...it is pretty cheap. I would also rebuild the carbs. Leak down test the engine, just to make sure all seals are still OK too. Oil pumps in these are reliable, so I'd leave it in.

    I have a pump/impeller for this boat if you haven't bought one yet....I'll cut a good deal on it

  4. #4
    Thanks for that info.

    I have found a jet pump / impellor allready, however certain O rings spacers etc i have had to get in direct from a jet ski center. Not sure where they are getting them from as delivery is taking a while..... Possibly me being a tad eager!

    Don't suppose u have a Digital Dash tho?? Mine works but its all faded and i cant really see it in certain light, so i'd like to get that fixed...

    Being in the UK it's tough to get anything 2nd hand really.

    Also does the clock always stay on the dash?

    Glad to hear about the oil pump, and the guy before me had the carbs rebuilt in December.

    Cheers

    Mike

  5. #5
    She likes the bike. But the ski gets her wet!!!! xlint89's Avatar
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    Welcome to the Hulk.

    You can fix your faded MFD display yourself. We have a couple threads on here explaining how to do it.

    Oil pumps are reliable, but the oil hoses and clamps aren't./ They're cheap and should be replaced.


    Don't trust the previous owners carb rebuild. Use only genuine Mikuni replacement parts. This is where guys try to save a few bucks and get burnt.

  6. #6
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    Quote Originally Posted by xlint89 View Post
    Welcome to the Hulk.

    You can fix your faded MFD display yourself. We have a couple threads on here explaining how to do it.

    Oil pumps are reliable, but the oil hoses and clamps aren't./ They're cheap and should be replaced.


    Don't trust the previous owners carb rebuild. Use only genuine Mikuni replacement parts. This is where guys try to save a few bucks and get burnt.
    Get burnt......literally......as in pistons

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