Question about 2004 Suzuki RM-Z 250

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Just bought an rmz 250 2004 hard to start but easy to bump how do i tell what the problem is heard it could be many things

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  • rotaman Mar 20, 2009

    have rmz 250 04 model hard to start when cold if dont get it right the first time it just wont start

  • Anonymous May 23, 2009

    just bought an rmz 250. 2004 model. it supposedly ran fine when parked 10 months ago, but now wont kickstart. pushstarts ok, but still wont idle.(dies when let off of throttle). i put in fresh gas, and cleaned the float bowl. blew out the jets too.

    im thinkin maybe the valve adjustment, or maybe the jetting???

    i would greatly appreciate some input. thank you!

    please shoot me a quick e-mail @



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I just had the same problem on my 04 its the valves they need to be adjusted

Posted on Mar 22, 2009

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Typical intake-valve. If the compression is low, there is no doubt

Posted on May 29, 2009

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Are u using the choke ,check compression may be low motor job needed

Posted on Jan 14, 2009

  • bmadd6065 Jan 23, 2009

    check compression, ??? using fresh gas ?? , tune up???


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04 suzuki rmz 250

Put in a new spark plug and check plug wire connections and ECM ground connections.

You probably have weak spark and when bump started the plug sparks strong enough to run the engine.

A weak battey can also cause this. Your ECM needs a minimum of 9V to work. (the ECM gives spark and timing) When kicking over, there is not enough volts to spark. When bumping over the alternator provides the extra volts to start the bike.

Hope this helps!

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