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Thread: 2002 yz250f starting problem

  1. 01-22-2010 03:08 PM #1
    crazybrazee
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    2002 yz250f starting problem

     
    I have a 2002 yamaha yz250f and when summer was over I drained gas tank, drained the carb float bowl, drained oil, and tranny. Now it is starting to warm up so I filled it up and had all new fluids. It will not start. I changed spark plug, check resistance on the coil, engine stop control. I sprayed starter fluid in the intake and still nothing. But If i push start it it will almost turn over. If anyone has any suggestions please let me know.
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  2. 01-22-2010 03:36 PM #2
    Hardtail
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    I would check and clean the carb, fuel line, pet cock, and tank. Did it run good when you winterized it?
    I love the smell of gasoline!!

    I woke up.....life is good!!!
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  3. 01-22-2010 04:22 PM #3
    crazybrazee
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    It ran like a champ before I winterized it, I have cleaned pet cock, but my next step is to tear apart carb and hope it is dirty, i already replaced all the drain line.
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  4. 01-22-2010 04:32 PM #4
    Hardtail
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    Did you have stabil or any other fuel stabilizer in the tank?
    I love the smell of gasoline!!

    I woke up.....life is good!!!
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  5. 01-22-2010 05:01 PM #5
    off_road_4_me
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    check compression

    2001 Yamaha WR250F
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  6. 01-24-2010 08:05 PM #6
    gscx
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    If it had compression when he put it up it just wont go away, and it would be obvious if he didnt have compresion because he has a manual decomp. It sounds like your pilot circuit is clogged up, dont spay air from the bottom up, spray the cleaner and air from the carb throat down. It you go from the float bowl up it will just jam it up more
    2001 YZ-426f- Aftermarket radiators,radiator braces, rebuilt forks, new linkage bearings, new piston, wrapped header, 5th dragon graphics(or some shit), TAG tripple tree(Thanks TDB) and Turner OV bars.
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  7. 01-24-2010 08:16 PM #7
    off_road_4_me
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    well actually its been sitting on these months dry
    what happens to dry seals? anybody?

    2001 Yamaha WR250F
    High Compression Piston
    FMF Powerbomb
    FMF Powercore IV
    Universal Radiator Braces
    Works Connection Skid Plate
    Cycra M2 Handguards
    White MX Rear Fender
    geared 13/50

    http://www.offroad95.blogspot.com
    check out our how to's
    here
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  8. 01-24-2010 11:08 PM #8
    gscx
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    metal head gaskets dont dry out, and it would havto be sitting for years to dry out the base gasket
    2001 YZ-426f- Aftermarket radiators,radiator braces, rebuilt forks, new linkage bearings, new piston, wrapped header, 5th dragon graphics(or some shit), TAG tripple tree(Thanks TDB) and Turner OV bars.
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  9. 01-25-2010 06:50 AM #9
    off_road_4_me
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    im thinking smaller seals think think think

    2001 Yamaha WR250F
    High Compression Piston
    FMF Powerbomb
    FMF Powercore IV
    Universal Radiator Braces
    Works Connection Skid Plate
    Cycra M2 Handguards
    White MX Rear Fender
    geared 13/50

    http://www.offroad95.blogspot.com
    check out our how to's
    here
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  10. 01-25-2010 10:31 AM #10
    gscx
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    K, tell me a smaller seal that affects compression.
    2001 YZ-426f- Aftermarket radiators,radiator braces, rebuilt forks, new linkage bearings, new piston, wrapped header, 5th dragon graphics(or some shit), TAG tripple tree(Thanks TDB) and Turner OV bars.
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