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  1. #1

    remove oil tank and premix

    my oil tank on my new 97 780 slt is cracked and rather than replace it, i was thinking about just bypassing it and using premixed, hopefully to avoid oil loss to the cylinders at a later date (doing top end rebuild).

    has anyone done this? pros / cons? thanks!


  2. #2
    urugol's Avatar
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    Replacing the oil tank will be easier than going to premix. $$$ probably similar to get a used tank vs block off kit. This subject has been talked to death in the past, lots of opinions here. What is certain is that you will use more oil going premix than with injection, this I know from experience. In terms of reliability Polaris oil pumps are very reliable, the only risk is more around old lines, linkages, carb maintenance etc you need to do your maintenance. I personally run premix but that's just my opinion. Use the search feature to get more info, here's one of those threads:

    http://www.greenhulk.net/forums/show...t=59843&page=1

  3. #3
    She likes the bike. But the ski gets her wet!!!! xlint89's Avatar
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    Those and the SLTX (same hull) have issues with the oil tanks if you beat the crap out of the ski.

    It's easy to go premix, and yes you will use alot more oil. It's not as convenient as straight gas and oil, but at least I know my engine has oil running through it.

    You will smoke alot more at lower RPM because of the added oil, but that's fine with me.

  4. #4
    thanks! i think I will be going premix.....

    on a second note, what is the difference between sl, slt, and slx? and what are you guys using for a premix, 50:1?

  5. #5
    She likes the bike. But the ski gets her wet!!!! xlint89's Avatar
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    SL 2 seater

    SLT 3 seater

    X in the designation just means performance options. SLX/SLTX/SLXH

    32:1 ratio for piston ring break in on new top end. Do not use synthetic oils when breaking in rings.

    40:1 normal riding

    Some may go with a 50:1 if using a full synthetic oil, and you feel lucky

  6. #6
    so are SLX motor/parts/components all compatible with SLT?

  7. #7
    Oil Pump

    Removing the oil pump is do-able but…. Extremely! , Extremely ! ….difficult, as you have to use a combination of mirrors to see. Be aware the Allen head bolts that hold the pump in place are Metric. Drain the tank before you remove the oil lines.

    I first tried to seal the Block-Off Plate using an O-ring, but discovered that just would not work.( Couldn’t get hands in there). I finally used thin gasket material , (made a gasket) coating all sides with RTV, which sealed OK.

    I also wired in, a 33-35 ohm resistor in the oil indicator line to fool the MFD.now the MFD shows full all of the time

  8. #8
    She likes the bike. But the ski gets her wet!!!! xlint89's Avatar
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    Quote Originally Posted by bobbo268 View Post
    so are SLX motor/parts/components all compatible with SLT?
    Some SLX 780 engine parts, yes

    SLX 1200 NO!!!

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