Used engine, weird spots, awkward sputters.

Discussion in 'General Questions' started by LukePeoples, Mar 24, 2009.

  1. LukePeoples

    LukePeoples New Member

    So I just installed this engine yesterday, it was a "Beach Dweller" as the previous owner said, and there are awkward spots (as seen here http://photos-d.ak.fbcdn.net/hphotos-ak-snc1/hs030.snc1/2584_60293203809_553283809_1493723_5144161_n.jpg ) and when i reach full speed, most of the time, the engine stops accelerating, and slows down, as if i had hit the kill switch. spark plug is new, air filter is fine, chains arent snagging, and brakes are fine. so what is causing this bike to barely reach 15 mph... my other one, which is the exact same engine is maxed out at 35....
     

  2. LukePeoples

    LukePeoples New Member

    sorry about the double post, but if I do need a new engine... where would i buy just an engine, because all im seeing is kits, and since i have a 66cc "Raw" engine... would an 80cc engine fit all my parts?
     
  3. rjs5700

    rjs5700 Member

    The spots are just oxidation on the aluminum from the salt air at the beach. Not really a problem except cosmetic. Don't give up on that motor as it may be as simple as carb adjustment, or dirt or residue in the system. If it sat unused for any length of time it could be either one. Flush the tank, clean the carb and see what happens. BTW the "80cc" motors are actually 66cc advertised as 80cc.
    Good luck.
     
  4. LukePeoples

    LukePeoples New Member

    so, the engine going vroom VRoom VROOM vroom vroom is because i have bad fuel?


    edit.
    i have an extra 66cc engine, so if ill switch these two, and then see the changes in quality. i think i just got a bad engine.
     
    Last edited: Mar 24, 2009
  5. rjs5700

    rjs5700 Member

    It's possible. The slightest bit of sludge or debris in the carb could restrict fuel flow and cause the problem.
     
  6. LukePeoples

    LukePeoples New Member

    carbs fine. new fuel, i think ill just change engines and see whats going on tomorrow night.
     
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