Problems with motor or carb

Discussion in 'Motorized Bicycle Trouble Shooting' started by Ilanp, May 4, 2017.

  1. Ilanp

    Ilanp New Member

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    Hey everyone, i have a 2 stroker 66 cc got over a thousand miles on it everything great.. Today going home from work started to idle way high then die. Checked for air leaks but still idle way high then low then dies put a new carb on same thing...
     
  2. crassius

    crassius Well-Known Member

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    check for air leak at base gasket & also check head gasket
     
  3. Ilanp

    Ilanp New Member

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    Thanks I think its more than an air leak... Thanks crassius..
     
  4. TheNecromancer13

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    Sounds like an air leak to me, too.
     
  5. crassius

    crassius Well-Known Member

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    clogged fuel filter could also cause that
     
  6. Ilanp

    Ilanp New Member

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    Thanks for the advice but still the same, i am inclined to think that it is an air leak in head gasket or seal of some kind...
     
  7. Ilanp

    Ilanp New Member

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    Hey everyone found the problem, it was the bearing seal on the magneto side had come out and was sucking air.. Popped it back in and installed a new magneto runs great. ordered a new seal also.. THANKS!!!!!!
     
  8. crassius

    crassius Well-Known Member

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    that happens sometimes, but be sure to check the main bearing on that side by prying up a bit with a screwdriver to see if bearing has play in it
     

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