1992 Indy 500 SP EFI, assembly help!
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1992 Indy 500 SP EFI, assembly help!

This is a discussion on 1992 Indy 500 SP EFI, assembly help! within the Polaris forums, part of the Brand Specific Snowmobile Discussion category; Hey everyone - I recently bought a 92 Indy 500 EFI as a project. It is mostly assembled, but the EFI components are all taken ...

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Thread: 1992 Indy 500 SP EFI, assembly help!

  1. #1
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    1992 Indy 500 SP EFI, assembly help!

    Hey everyone - I recently bought a 92 Indy 500 EFI as a project. It is mostly assembled, but the EFI components are all taken apart. I have only worked on carbed sleds and I'm having a helluva time trying to figure out how to PROPERLY assemble things.

    Any help I can get would be greatly appreciated!

    I mainly need help with the fuel line routing, how to connect the coolant reservoir lines...things like that. Does anyone have any helpful tips or common mistakes? Or maybe a picture of a fully assembled EFI motor, minus the airbox so I can see how it's all put together? I do have the good old 1985-1995 Service manual and some parts diagrams, but they aren't helping much with assembly.

    I know this posting probably seems pretty broad...it's just hard to figure out where to start sometimes on something like this.

    Thanks!

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    Ugly_old_Poo_kid's Avatar
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    The fuel system runs from the bottom line on the tank, to the fuel pump, to the metal filter, and to the end of the fuel rail by the clutch. The other end of the fuel rail is the return line to the tank and connects to the top. (this is universal on the 90's Polaris EFI sleds)

    Can't help you on the hose routing, the 500 and 650 are different there.
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    Thank you very much, that helps a lot...
    I'm guessing the bottom of the fuel pump is the inlet, am I right? By the bottom I mean the end without the wires coming out. And the fuel line goes from the tank, then to the L-fitting, and into the bottom of the fuel pump...

    Thanks again, I appreciate the help!

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