yamaha yn 50 neo's not starting

Discussion in 'The Workshop' started by mattyt2010, Dec 29, 2010.

  1. mattyt2010

    mattyt2010 Member

    Messages:
    83
    Rides:
    gilera runner vx 125
    hi i currently fixing a mates bike for him. he said he was riding along a few days ago and the bike just died as if he turned the ignition off. any ideas would be very helpful. i checked the plug and thats fine. i cleaned the carb and the fuel is getting there ok but the fuel tap is constantly letting fuel to the carb even when the ignition is off. could that be a problem at all. and every so often when trying to start it a big gust of air and sparks fly out of the exhaust. please help any info would be useful. thanks
     
  2. m1ck_t

    m1ck_t Moderator Staff Member

    Messages:
    3,627
    Rides:
    alot of shit
    Replace the fuel tap and fit a new plug .
     
  3. mattyt2010

    mattyt2010 Member

    Messages:
    83
    Rides:
    gilera runner vx 125
    ok mate thanks. is there anything else i need to check aswell as replacing them. thanks for the help.

    matty
     
  4. m1ck_t

    m1ck_t Moderator Staff Member

    Messages:
    3,627
    Rides:
    alot of shit
    Before you actually screw the plug in make sure theres a good spark

    Could also check the HT and ignition coil lead is ok and not tracking anywhere.

    Check the fuel and vacume lines for splits etc..

    Just note/inspect the condition of general parts/items as you go along really

    Perhaps give the bike a bit of a service ?
     

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