YB 125 will not start

Discussion in '2 smokers' started by nicolascav, Feb 26, 2012.

  1. nicolascav

    nicolascav Been here awhile

    Joined:
    Nov 3, 2005
    Oddometer:
    363
    Location:
    ecuador, Quito
    hello, so my yamaha YB 125 just will not start no matter what . it has spark , any ideas what should i try. thanks :ear
    #1
  2. PistonPants

    PistonPants Crankcase Scavenger

    Joined:
    Jun 11, 2008
    Oddometer:
    519
    Location:
    Cantwell, AK
    In addition to spark it needs compression and decent fuel. Fresh fuel works wonders if it sat for extended time.

    Piston
    #2
  3. Shocktower

    Shocktower Long timer

    Joined:
    Jul 27, 2009
    Oddometer:
    9,535
    Location:
    Oregon City Orygun
    How long has the bike been sitting ?? how old is the fuel, the new fuel is not good especialy if it has ethinol :puke1
    #3
  4. Abdelhub

    Abdelhub Blanco Trasho

    Joined:
    Nov 24, 2007
    Oddometer:
    727
    Location:
    Snohomish County
    poke a small guitar string through the pilot jet....works for me...

    Mike
    #4
  5. Euromad

    Euromad Been here awhile

    Joined:
    Feb 16, 2010
    Oddometer:
    343
    Location:
    Lower Slobbovia
    Compression spark and fuel. Old gas sucks!
    Where can we get the good old stuff :cry
    #5