mid range miss!!!!!

4 replies to this topic
  • dodge03

Posted May 25, 2005 - 07:19 PM


i need help with my 03 450. the engine misses when i hold the throttle steady especially over whoop sections. i have tried adjusting the fuel air screw but it does not help. the bike is new to me i have another 03 that does not have this problem. any ideas

  • dodge03

Posted May 25, 2005 - 07:19 PM


please help!!

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  • yzf450jack

Posted May 25, 2005 - 07:30 PM


My bike was doing that :) When i repacked my fmfQ cuz all the packing was gone :) and now it runs smooth i don't know why but does :D

  • Fastest1

Posted May 25, 2005 - 09:11 PM


How does it run at mid throttle on smooth ground? Could be the float level. Is the screw/plug in the top of the slide that holds the needle down, in? Are all the carb/airbox boots fitted correctly and tight?

  • MotoGoalie

Posted May 26, 2005 - 08:51 AM


Im the search nazi you were warned about.

I had the same problem with a new/used bike. Try
1. adjust your AP timing. Make sure its correct
2. Find out what your jetting is by:
a. cleaning out the carb

3. put in new plug
4. you may be too rich. To rich can cause a midrange miss.

and check this link....


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