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04 crf450r hard starting hot
  • 04 crf450r
    Posts:7
    Joined:Thu Mar 23, 2017 10:02 am
    04 crf450r hard starting hot

    by 04 crf450r » Mon Mar 27, 2017 8:56 am

    Hello, this is my first time posting on CRF'S only. I have a 04 crf450r that is hard to start hot. It start 3rd kick everytime cold but hot is hard. If you start is cold worm it up on a ride then adjust the aftermarket fuel screw I got, then shut it off it will start first kick. Turn it off again and it goes to 4 kicks the 6-8 kicks. I have true running it rich and lean and non work. When the bike is hot it still has all the power, I shut it off hot and I still get gas, spark and compression. So I realy don't know what's wrong with it.
    If anyone can help it would be very appreciated!!
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    crfsonly
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    Re: 04 crf450r hard starting hot

    by crfsonly » Wed Apr 05, 2017 12:44 pm

    Check the valve clearances. This is a typical early sign of one or more valves tightening.

    Ken
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  • aaron5s
    Posts:15
    Joined:Tue Jul 22, 2014 9:14 pm

    Re: 04 crf450r hard starting hot

    by aaron5s » Wed May 24, 2017 2:42 am

    Aside from checking the valve clearances, I would do a compression test.
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