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Thread: Quick question 85r

  1. #1
    trikeguy2014's Avatar
    trikeguy2014 is offline At The Back Of The Pack Arm chair racerFirst time rider
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    Quick question 85r

    Their is several chain brands that sell sets. Comes with chain and front and rear sprockets. Is their a difference between 85 and 86. Lot of places on eBay say 1985 250r and have a different listing for 1986. But some say both years. So is their a difference? Any help would be great
    One of the Haspin Locals
    Trikefest 12' 13' 14' 15' 16' 17'

    Trikes owned

    1985 Honda atc 250r - raced by yours truly #27
    1985 Honda atc 250es big red- Dad bought new from Ike's Honda in Richmond Indiana
    1984 Honda atc 200s - raced by Evan Pflum #3

  2. #2
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    Both are the same

  3. #3
    Join Date
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    Blossvale NY
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    Rear sprockets are NOT the same!

    One rides on the inside of the sprocket hub and the other rides on the outside. You have to run whichever sprocket matches to your axle.
    Trikes:
    '85 ATC 350R
    '85 ATC 250R
    '86 ATC 350X
    '85 ATC 350X
    '84 ATC 200ES Big Red
    '84 ATC 125M
    '85 ATC 110
    '85 ATC 70/110

    If you have bought from me or sold to me, please leave me feedback here>>> http://www.3wheelerworld.com/showthr...+RIDE-RED+250r

  4. #4
    trikeguy2014's Avatar
    trikeguy2014 is offline At The Back Of The Pack Arm chair racerFirst time rider
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    Okay I was thinking their may be a difference. My r is an 85 but I know people like to change stuff over time. Does the 85 sprockets run on the inside or outside. I want to make sure before I order 85 and mine has been changed to run 86 sprockets.
    One of the Haspin Locals
    Trikefest 12' 13' 14' 15' 16' 17'

    Trikes owned

    1985 Honda atc 250r - raced by yours truly #27
    1985 Honda atc 250es big red- Dad bought new from Ike's Honda in Richmond Indiana
    1984 Honda atc 200s - raced by Evan Pflum #3

  5. #5
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    Quote Originally Posted by trikeguy2014 View Post
    Okay I was thinking their may be a difference. My r is an 85 but I know people like to change stuff over time. Does the 85 sprockets run on the inside or outside. I want to make sure before I order 85 and mine has been changed to run 86 sprockets.
    '85 runs on the outside, '86-on runs on the inside.

    FYI: you can swap an '86-on axle into your '85 rear end. All you have to do is run the '86-on rear sprocket. If your sprocket alignment on your machine is good, you know you are running the correct rear sprocket.

    Front sprockets are the same.
    Trikes:
    '85 ATC 350R
    '85 ATC 250R
    '86 ATC 350X
    '85 ATC 350X
    '84 ATC 200ES Big Red
    '84 ATC 125M
    '85 ATC 110
    '85 ATC 70/110

    If you have bought from me or sold to me, please leave me feedback here>>> http://www.3wheelerworld.com/showthr...+RIDE-RED+250r

  6. #6
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    Lloydminster, Alberta
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    An 86 sprocket can be used on an 85. My 85 had an 86 sprocket on it when I first got it. You just have to make sure you use bolts with a tapered head on them so they will fit into the tapered holes on the sprocket
    Mixing gas and haulin' ass


    1984 ATC 70 x2
    1985 ATC 250R-Ported/Polished, PWK 39mm, V-force 3's, Outerwears air box lid, FMF fatty with DG silencer, DWT wheels, LSR +4 axle, all black plastics
    1985 ATC 250R-stock

  7. #7
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    Quote Originally Posted by Samjp22 View Post
    An 86 sprocket can be used on an 85. My 85 had an 86 sprocket on it when I first got it. You just have to make sure you use bolts with a tapered head on them so they will fit into the tapered holes on the sprocket
    Hold on a sec.... Which side of the sprocket hub do you mount it too??? I'm thinking with the '85 spec axle, you would have to run it on the outside still due to clearance issues between the sprocket and carrier? And if that's the case, is sprocket alignment on??
    Trikes:
    '85 ATC 350R
    '85 ATC 250R
    '86 ATC 350X
    '85 ATC 350X
    '84 ATC 200ES Big Red
    '84 ATC 125M
    '85 ATC 110
    '85 ATC 70/110

    If you have bought from me or sold to me, please leave me feedback here>>> http://www.3wheelerworld.com/showthr...+RIDE-RED+250r

  8. #8
    trikeguy2014's Avatar
    trikeguy2014 is offline At The Back Of The Pack Arm chair racerFirst time rider
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    Sorry about the mud just got back from a ride yesterday
    One of the Haspin Locals
    Trikefest 12' 13' 14' 15' 16' 17'

    Trikes owned

    1985 Honda atc 250r - raced by yours truly #27
    1985 Honda atc 250es big red- Dad bought new from Ike's Honda in Richmond Indiana
    1984 Honda atc 200s - raced by Evan Pflum #3

  9. #9
    trikeguy2014's Avatar
    trikeguy2014 is offline At The Back Of The Pack Arm chair racerFirst time rider
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    Other side
    One of the Haspin Locals
    Trikefest 12' 13' 14' 15' 16' 17'

    Trikes owned

    1985 Honda atc 250r - raced by yours truly #27
    1985 Honda atc 250es big red- Dad bought new from Ike's Honda in Richmond Indiana
    1984 Honda atc 200s - raced by Evan Pflum #3

  10. #10
    Join Date
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    Blossvale NY
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    Well what you have is the 86 rear sprocket setup.
    Trikes:
    '85 ATC 350R
    '85 ATC 250R
    '86 ATC 350X
    '85 ATC 350X
    '84 ATC 200ES Big Red
    '84 ATC 125M
    '85 ATC 110
    '85 ATC 70/110

    If you have bought from me or sold to me, please leave me feedback here>>> http://www.3wheelerworld.com/showthr...+RIDE-RED+250r

  11. #11
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    Lloydminster, Alberta
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    With the 86 sprocket on the 85 hub the sprocket was still mounted on the outside and the alignment of the chain was still fine. Now I've got an 86hub and sprocket on there but yes the 86 sprocket is on the inside of the 86hub
    Mixing gas and haulin' ass


    1984 ATC 70 x2
    1985 ATC 250R-Ported/Polished, PWK 39mm, V-force 3's, Outerwears air box lid, FMF fatty with DG silencer, DWT wheels, LSR +4 axle, all black plastics
    1985 ATC 250R-stock

  12. #12
    trikeguy2014's Avatar
    trikeguy2014 is offline At The Back Of The Pack Arm chair racerFirst time rider
    Join Date
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    When I order my sprocket set and chain I'll get the 1986 then.
    One of the Haspin Locals
    Trikefest 12' 13' 14' 15' 16' 17'

    Trikes owned

    1985 Honda atc 250r - raced by yours truly #27
    1985 Honda atc 250es big red- Dad bought new from Ike's Honda in Richmond Indiana
    1984 Honda atc 200s - raced by Evan Pflum #3

  13. #13
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    Jul 2014
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    Lloydminster, Alberta
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    You'll need different bolts as well also good to put lock nuts on the back side of the bolts just for some extra insurance
    Mixing gas and haulin' ass


    1984 ATC 70 x2
    1985 ATC 250R-Ported/Polished, PWK 39mm, V-force 3's, Outerwears air box lid, FMF fatty with DG silencer, DWT wheels, LSR +4 axle, all black plastics
    1985 ATC 250R-stock

  14. #14
    Join Date
    Feb 2010
    Location
    Blossvale NY
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    4,563
    Thanks Samjp22. Funny, I would think that alignment would be off a bit... But anyhow..

    By the looks of his photos, he does have the correct bolts already in the rear sprocket. X2 on new locknuts.
    Trikes:
    '85 ATC 350R
    '85 ATC 250R
    '86 ATC 350X
    '85 ATC 350X
    '84 ATC 200ES Big Red
    '84 ATC 125M
    '85 ATC 110
    '85 ATC 70/110

    If you have bought from me or sold to me, please leave me feedback here>>> http://www.3wheelerworld.com/showthr...+RIDE-RED+250r

  15. #15
    trikeguy2014's Avatar
    trikeguy2014 is offline At The Back Of The Pack Arm chair racerFirst time rider
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    I would say the previous owner must have switched it over to a 86 setup. I'll get a 86 chain and sprocket set ordered. And get some lock nuts. Might just use some none permanent locktight and try that first
    One of the Haspin Locals
    Trikefest 12' 13' 14' 15' 16' 17'

    Trikes owned

    1985 Honda atc 250r - raced by yours truly #27
    1985 Honda atc 250es big red- Dad bought new from Ike's Honda in Richmond Indiana
    1984 Honda atc 200s - raced by Evan Pflum #3

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