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Thread: Intermittent spark on a 1977 Honda ATC 90

  1. #1
    Join Date
    Nov 2015
    Location
    Manitoba Canada
    --
    117

    Intermittent spark on a 1977 Honda ATC 90

    My atc 90 has very strong blue spark, exactly as it should be, the only problem is that it only sparks once every 20 pulls. Would it be a bad connection on the coil above the engine? I disconnected the kill switches and it was still the same.
    1983 ATC 185s 200 jug bored .20 9.5:1 Naumura piston. Fast as ass when its not stretching the drive chain or stripping hubs.
    1986 ATC 250ES. *Total garbage trying to sell it*
    1983 YTM 200E. Runs good, forks are super bent but aside from that its mint.
    1984 YTM 200L. Barn find, everything is mint except the bottom end is bad... *waiting on a new engine*

  2. #2
    Join Date
    Jul 2009
    Location
    South Florida
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    6,798
    I would replace the condenser and the points .
    78 atc 90/180cc Dickson Full Suspension
    76 ATC90/180cc Nicholson
    77 atc 90 Dickson Full Suspension
    84 KLT 110/123cc Powroll Racer from 80s
    87 atc 125m stock
    84 atc 200x Curtis Sparks
    84 atc 200x Powroll My race bike from 80's
    83 atc70/108cc Powroll blue Xmas Special
    81 atc185s HP-ATC full suspension

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