i been riding with air filter off, can it do harm?

Discussion in 'Motorized Bicycle General Discussion' started by 4wdingman, Nov 4, 2008.

  1. 4wdingman

    4wdingman New Member

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    HI
    I got a new carby and it won't run with out the cover and air filter off, with it off it doesn't go lean or too rick so can it do any damage?

    Thanks
     
  2. MikeBike

    MikeBike New Member

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    i whould leave the air filter on, because you do not want any dust or tiny bugs to bug up you hole works
     
  3. OSCAR383

    OSCAR383 New Member

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    On A Four Stroke With No Air Cleaner Junk Gets In You Clyinders On A Two Stroke Junk Gets On Your Crank Rod Cylinders And Everywhere In Between
     
  4. Bikeguy Joe

    Bikeguy Joe Godfather of Motorized Bicycles

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    Set the carb a little leaner, and put it back on.
     
  5. tyrslider

    tyrslider New Member

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    I've noticed that the filter cover is restrictive. You could drill some holes on the back face of the cover. Also Spooky Tooth sells a unifilter that'll give it more air.
     
  6. ibcnya

    ibcnya New Member

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    This is like asking if the bike would run better with a velocity stack, if it works on car Individual throttle bodies then why wouldnt it help make more power on a single carb?
     
  7. saetta

    saetta New Member

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    I have the stock black plastic air breather and I drilled four holes in the area around the mounting screws. I wasn't correcting a problem, however I do feel a difference.
     
  8. Bikeguy Joe

    Bikeguy Joe Godfather of Motorized Bicycles

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    Exellent advice.
     
  9. Bikeguy Joe

    Bikeguy Joe Godfather of Motorized Bicycles

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    Not exactly...he's asking if running with the right mixture and no air filter is a good idea..... it isn't.

    Any engine will run better with a less restrictive intake or exhaust if it is tuned correctly.
     
  10. ibcnya

    ibcnya New Member

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    But would a velocity stack improve the perfomance of these engines?

    [​IMG]
     
  11. Bikeguy Joe

    Bikeguy Joe Godfather of Motorized Bicycles

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    It could if you get the jetting/needle right and only in the upper rpm range.
     
  12. thatsdax

    thatsdax Member

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    Never run with the air filter off. Dirt and dust will enter the motor and grind up the piston and rings. There are some roads where I live that have granite dust and will ruin any motor in just a few miles. Always use an air filter. Enjoy the ride....
     
  13. tyrslider

    tyrslider New Member

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    Velocity stacks are used by racers who expect the most out of their motors for short periods of time. Race 2 strokes need completely rebuilt about every 10 hrs of run time and get top end attention more often than that. Most people I've known to race 2 strokes use filters even a drag racer I knew. That Unifilter Spooky Tooth sells is a race quality filter.
     
  14. Bikeguy Joe

    Bikeguy Joe Godfather of Motorized Bicycles

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    Yes, and these aren't race engines either....their "performance" is defined by low cost transportation and ease of maintenace.

    Not mpg, not mph.
     

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