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Thread: atc 90 help

  1. #1
    Join Date
    Feb 2011
    Location
    center,missouri
    --
    58

    atc 90 help

    ok so i bought a 90 out of a barn this week end cleaned the carb and gas tank fired right up runs great but... 1st and 2nd gear slip/jump. is that a easy fix or? and second question. is the lifan engines on ebay a direct bolt and go and do you just use the stock wirring harness?and can you put the high and low on the lifan engine?thanks kyle

  2. #2
    Join Date
    Jan 2003
    Location
    Southern MN
    --
    1,875
    I think the Lifian engines are CDI, so the stock 90 harness would not work as they are for points. I dont think the hi-low fits on the lifian engine either, but not 100 percent on that. Have you tried getting the engine warm and changing the oil? After that, I would try to adjust the clutch engagement. Do a search on clutch adjustment, or read the service manual. It may just be the clutch discs sticking from sitting too long? Also make sure the chain is in good shape. --- Jon.
    THE 80's RAGE! Currently owns:
    81, 85 Yamaha Tri Moto 125
    83 Yamaha Tri Moto 200 x2
    82,83 Yamaha Tri Moto 175 project
    85 Yamaha Tri Z 250
    84 Kawasaki Tecate 250
    84 Honda ATC 70
    85 Honda ATC 350X
    84 Honda ATC 250R
    (2) 84 Honda ATC 200x
    82, 83 Honda ATC 185s
    81 ATC 200
    Lots of other parts and bikes

  3. #3
    Join Date
    Feb 2011
    Location
    center,missouri
    --
    58
    The sprocket doesnt turn when it skips.and normally you can pull up on the shifter and it like neutral this one doesnt do that it just always pulls? Any ideas

  4. #4
    Join Date
    Feb 2011
    Location
    center,missouri
    --
    58
    any more help would be nice before i pull it apart.thanks kyle

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