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Thread: leaded fuel

  1. #1
    Join Date
    Jul 2006
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    iowa
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    leaded fuel

    i just finished up a trike conversion project with a snowmobile engine. The engine is an air cooled 2cyl. 2stroke and i just noticed that it says im supposed to use leaded fuel only. Should i use a lead additive? If i have heard correct, the lead reduces heat and friction but im not sure if its neccesary or not. What do you guys think? thanks in advance.

  2. #2
    70ATC90's Avatar
    70ATC90 is offline At The Back Of The Pack Arm chair racerFirst time rider
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    Nov 2006
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    Minnesota
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    I guess I probably would. Non leaded fuel might eat away at the gaskets in the carb, its been known to happen on older carbs. You should show us some pictures of this project, sounds very interesting.
    Last edited by 70ATC90; 06-06-2007 at 09:16 PM.
    1978 ATC 90
    2001 400EX



  3. #3
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    Apr 2007
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    ohio
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    What year is this snowmobile engine you are speaking of ?

  4. #4
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    Jul 2006
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    iowa
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    oh the engine is a 340cc kohler from a 1979 john deere spitfire

  5. #5
    Join Date
    Apr 2007
    Location
    ohio
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    774
    If you don't use the bike for just normal riding you might consider running a higher octane leaded fuel such as turbo blue 110, that is what I use in my 300r dragbike and it works excellent.

  6. #6
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    Jul 2006
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    iowa
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    yea the engine is completely stock so i doubt i could get the advantage from 110, but i'll probably try some lead additive for now.

  7. #7
    70ATC90's Avatar
    70ATC90 is offline At The Back Of The Pack Arm chair racerFirst time rider
    Join Date
    Nov 2006
    Location
    Minnesota
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    Whats this motor sitting in?
    1978 ATC 90
    2001 400EX



  8. #8
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    Jul 2006
    Location
    iowa
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    heres a link to the project, but i still need to get some finished pics.
    http://www.3wheelerworldforums.com/s...ad.php?t=66669

  9. #9
    fla 2-stroke's Avatar
    fla 2-stroke is offline At The Back Of The Pack Arm chair racerAt the back of the pack
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    unleaded is fine for that moter.

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