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wr 250f saga

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  • January 1, 2010 at 8:06 am #97823

    bruce
    Member

    well the saga of the wr250 f that won’t go continues.
    i took it out of the shop it was in {they couldn’t be bothered ].got it home . now it only fires once when you jump on the kickstarter. had the shims, timing, stator tested ‘ carb cleaned.
    even if you give it a spray of aerostart if only fires once .
    if there are any gurus out there who have smoe kind of clue i would be greatful.
    :blush:

    January 1, 2010 at 9:44 am #166716

    Mick D
    Member

    You have covered all the things I would check. Wiring loom maybe?? Earth to coil?? Just grasping at straws here though.I am thinking electrics,maybe I am way off the mark.

    January 1, 2010 at 10:12 am #166717

    Liam
    Member

    Checked the plug and everything behind it?

    January 1, 2010 at 10:25 am #166731

    Greg
    Member

    The fact that is fires makes me think fuel delivery / supply.

    If it was plug it wouldn’t fire you would think.
    If it was timing it shouldn’t really fire

    Without knowing much more other then what you wrote and whats been done if it was done correctly, yeah fuel

    TB

    January 1, 2010 at 10:32 am #166732

    Liam
    Member

    Trailboss wrote:

    Quote:
    If it was plug it wouldn’t fire you would think.

    TB

    I’m basing my suggestion on experience with a loose ignition wire creating a weak spark.
    So I suspect an even looser wire might mean even weaker spark?

    January 1, 2010 at 10:35 am #166734

    Greg
    Member

    True enough Diddel

    TB

    January 1, 2010 at 10:39 am #166735

    Fez
    Member

    If it has a hot start on the carbi it may be stuck in. Could be wirth a look. What about the CDI?????

    January 3, 2010 at 12:09 pm #166718

    bruce
    Member

    gonna give the cdi the heave-ho. can get 1 from cairns for 180 bucks . if anyone else knows where there is a cdi for a kickstart only wr250f ??

    January 3, 2010 at 6:58 pm #166726

    Greg
    Member

    Maybe Bruce, there is a guy in Orange that has one, spoke to him last week, it destroyed the gearbox and was going to cost $3k + to fix he was talking about wrecking it. It is definitely a kick start only as I have ridden it, will ring him this morning for you ;)

    TB

    January 4, 2010 at 4:59 am #166727

    Greg
    Member

    Ol mate is having a think for 24hrs and will ring me back Bruce sorry for the delay

    TB

    January 4, 2010 at 5:26 am #166719

    Brendon Carre
    Member

    Check your kill switch is not earthing out on bar. Check gap on plug, try towing and see if it fires. Dan and I found out how spark gap can make a difference on the blue machines!! :huh:

    January 4, 2010 at 11:55 pm #166720

    jamie
    Member

    brucecul wrote:

    Quote:
    well the saga of the wr250 f that won’t go continues.
    i took it out of the shop it was in {they couldn’t be bothered ].got it home . now it only fires once when you jump on the kickstarter. had the shims, timing, stator tested ‘ carb cleaned.
    even if you give it a spray of aerostart if only fires once .
    if there are any gurus out there who have smoe kind of clue i would be greatful.
    :blush:

    G,Day Bruce,
    Maybe try another yami dealer,when my sons bike was originally busted they had trouble diagnosing the electrical fault’and only after swapping parts in the shop found it out. Which was lucky as i was just about to buy a part that wasn’t the culprit,so saved a few $ that way.
    Good luck any way mate.

    January 5, 2010 at 12:08 am #167078

    Anonymous

    +1 for checking the CDI and HT lead. Just because there is a spark visible doesn’t mean it’s good enough to go. I recently sorted an issue with my KTM200 that turned out to be a partial break in a wire from the CDI.

    If it’s getting a weak spark try running a reduced spark gap to see if that helps get it going. Other than that the CDI itself could be the cause. have you checked the reg/rectifier for correct operation?

    I found the intermittent wire thing by using a multimeter set to beep mode and moving the wire around. The beep wasn’t constant so I replaced.

    Failing that fuel could be an issue, does the plug look bone dry after you’ve been kicking it over for a while? You would expect that it looks wet after a lot of kicking and no starting. A dry plug under these conditions could insinuate there is a fuel blockage somewhere.

    Good luck with it, let us know how you get on.

    January 8, 2010 at 10:15 am #166721

    bruce
    Member

    thanks for all the ideas boys much apprecitaed i am goin to attack it with a multi meter see what i come up with . once again thanks one and all. B)

    January 8, 2010 at 10:19 am #166736

    bruce
    Member

    if he ever gets back to you if he wants to get rid of his bike or parts, give me a yell straight away.
    :silly:

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