1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

Help FZR250 2kr won't start

Discussion in 'Yamaha 250cc In-Line 4's' started by amdeleon11, Apr 19, 2019.

  1. amdeleon11

    amdeleon11 Member

    Messages:
    10
    Likes Received:
    7
    Trophy Points:
    13
    Joined:
    Dec 9, 2018
    Gender:
    Male
    Occupation:
    Strength and Conditioning Coach
    Location:
    Philippines
    My Bike:
    FZR250 2kr
    okay i'm stumped. cleaned carb, replaced the tci, ignition coil, coil plugs, fuel pump, fuel pump relay, new spark plugs, and my 2kr still wont run. any ideas? it seems like it's gonna start at some point but it doesn't continue.

    i tried bump starting it, it will fire for a sec then it will die. it also backfires sometimes. when cranking/bump starting.
     
  2. Linkin

    Linkin The Apprentice Premium Member Dirty Wheel Club Contributing Member

    Messages:
    3,779
    Likes Received:
    2,206
    Trophy Points:
    943
    Joined:
    Mar 18, 2014
    Location:
    Sydney NSW
    My Bike:
    '99 YZF-R6, '99 GSF250VY
    Is the fuel flow after the fuel tap OK? Is the fuel fresh?

    Exhaust headers getting hot as you crank it over? A cold exhaust indicates it's not firing
     
  3. my67xr

    my67xr Bike Enthusiast Staff Member Premium Member Contributing Member

    Messages:
    3,622
    Likes Received:
    2,079
    Trophy Points:
    898
    Joined:
    Jun 18, 2016
    Gender:
    Male
    Occupation:
    Panel Beater, Spray Painter, Custom Fabricator
    Location:
    Adelaide, South Australia
    My Bike:
    Yamaha's, 1990 FZR250R 3LN3 , 1986 XT250TS 57R , 1984 IT200L 43G
    Intake manifold's are cracked. use some windscreen urethane to try and seal them up until you can find some new one's
    Remove the rubber intake's and smear the urethane all over them, might buy you a bit of time
     
  4. amdeleon11

    amdeleon11 Member

    Messages:
    10
    Likes Received:
    7
    Trophy Points:
    13
    Joined:
    Dec 9, 2018
    Gender:
    Male
    Occupation:
    Strength and Conditioning Coach
    Location:
    Philippines
    My Bike:
    FZR250 2kr
    yup the exhaust gets hot and i removed the hose from the carb and there is fuel. it's not new fuel though might have to check that but when i bump start it, it fires up a bit then dies. and i noticed when i blip the throttle while cranking it it wants to fire up more but doesnt continue.
     

Share This Page