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Thread: Timing chain on a 70

  1. #1
    Join Date
    Nov 2004
    Location
    Waterloo IL
    --
    2,701

    Timing chain on a 70

    A buddy of mine has an ATC70 and it makes a lot of top end noise and the timing chain is very loose, we thought the roller was missing but it is in there. I'm at work right now and he is trying to change it and he said it looks like you have to split the bottom end to change the timing chain. Sounds kinda odd to me but I'm not looking at it so I don't know. Any tips?
    08 Outlaw 525s
    07 CRF70
    04 Harley FLHRCI
    04 TRX90
    03 XR650R
    03 400EX- XR650R engine
    02 XR100R

    01 Banshee
    00 XR50R
    00 XR70R

    99 PW50
    99 JR50
    96,95 Sportsman 400
    95 Xplorer 400
    94 Indy XLT
    87 Trail Boss
    86,86,86,86,86 Scrambler

    86 TRX70 x2
    85 ATC350X
    85,84 ATC250R

    85 Red Tecate
    85 LT50 x2
    84 XR500R
    84,84,84,84,83,82,80,79 ATC70
    82,79 XL500R

    83 ALT50
    79,78,77,77,76 XT/TT500
    76,75,74 XL70
    72,71,71,71 SL70

    72 Harley FX
    72,71,70,70,70,70,70 CT70H
    72 SL100
    70,69 Z50

  2. #2
    Join Date
    Nov 2004
    Location
    Waterloo IL
    --
    2,701
    No one here has ever put a timing chain in a 70? That's weird. I guess since I will be pioneering this procedure for 3WW I will post my results.
    Last edited by Blown 331; 11-01-2005 at 01:47 PM.
    08 Outlaw 525s
    07 CRF70
    04 Harley FLHRCI
    04 TRX90
    03 XR650R
    03 400EX- XR650R engine
    02 XR100R

    01 Banshee
    00 XR50R
    00 XR70R

    99 PW50
    99 JR50
    96,95 Sportsman 400
    95 Xplorer 400
    94 Indy XLT
    87 Trail Boss
    86,86,86,86,86 Scrambler

    86 TRX70 x2
    85 ATC350X
    85,84 ATC250R

    85 Red Tecate
    85 LT50 x2
    84 XR500R
    84,84,84,84,83,82,80,79 ATC70
    82,79 XL500R

    83 ALT50
    79,78,77,77,76 XT/TT500
    76,75,74 XL70
    72,71,71,71 SL70

    72 Harley FX
    72,71,70,70,70,70,70 CT70H
    72 SL100
    70,69 Z50

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