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Thread: JT front sprocket

  1. #1
    crackshot's Avatar
    crackshot is offline Worthless, would be a vast improvement. Arm chair racerJust too addicted
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    JT front sprocket

    I just got a JT front sprocket for my 85 R and noticed it has like a
    "flange" on one side making it offset and the other side is flat and does not have this.
    Does the "flanged" side go in towards the engine and the flat side out?
    1980 110
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    1985 350X
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    1984 185s
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  2. #2
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    If it's like i'm thinking it goes out.

  3. #3
    crackshot's Avatar
    crackshot is offline Worthless, would be a vast improvement. Arm chair racerJust too addicted
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    Quote Originally Posted by Erics350x
    If it's like i'm thinking it goes out.
    So the flat side of sprocket goes in toward engine?
    The flanged side has the markings with the tooth size, model number and brand.

    Here is a pic. The sprocket on left has that "offset flange" and is a better visual what I am talking about.
    Last edited by crackshot; 01-14-2007 at 11:12 AM.
    1980 110
    1982 250R
    1985 200s
    1985 250R
    1985 350X
    Parting out...
    1983 250R
    1984 185s
    PM me for parts



  4. #4
    crackshot's Avatar
    crackshot is offline Worthless, would be a vast improvement. Arm chair racerJust too addicted
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    Anyone? Feel free to speak up.
    1980 110
    1982 250R
    1985 200s
    1985 250R
    1985 350X
    Parting out...
    1983 250R
    1984 185s
    PM me for parts



  5. #5
    nate b is offline At The Back Of The Pack Arm chair racerAt the back of the pack
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    what does your old sprocket look like? hold this one up to your old one and make sure they have the same amount of offset off the motor
    85 atc 250r;
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  6. #6
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    typically the flange goes towards the motor. The flange adds clearance for the larger sealed (o, x, t -ring chains) so they do not hit the cases.
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  7. #7
    crackshot's Avatar
    crackshot is offline Worthless, would be a vast improvement. Arm chair racerJust too addicted
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    Quote Originally Posted by maggiesboy
    typically the flange goes towards the motor. The flange adds clearance for the larger sealed (o, x, t -ring chains) so they do not hit the cases.
    Yeah it does not make sense to put that washer over the flange.
    I installed it so flange is toward engine and ran it. Did not throw chain and seems to be lined up.
    1980 110
    1982 250R
    1985 200s
    1985 250R
    1985 350X
    Parting out...
    1983 250R
    1984 185s
    PM me for parts



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