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!!

Visit the ThumperTalk Store for the lowest prices on motorcycle / ATV parts and accessories - Guaranteed
  • 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....


Related Content



Dirt Bike   Make / Model Specific   Yamaha   YZ 400/426/450
  • Hot  30 replies

Wilson the Blue Privateer by jetfuel

Dirt Bike   Special Interest Forums   Pro Racing
  • Hot  50 replies

Is it worth it? (Cam and High compression piston) by macgi77

Dirt Bike   Make / Model Specific   Honda   CRF 150/230 F/L
  • Hot  36 replies

2016 YZ450 by CaptainKnobby

Dirt Bike   Dirt Bike Technical Forums   Suspension
  • Hot  59 replies

Chubby dad, looking at bikes , First trip to the orange/black forum ! by Slow_ride

Dirt Bike   Make / Model Specific   KTM   250-530 EXC/MXC/SXC/XC-W/XCR-W (4-Strokes)
  • Hot  28 replies

Join Our Community!

Even if you don't want to post, registered members get access to tools that make finding & following the good stuff easier.

If you enjoyed reading about "" here in the ThumperTalk archive, you'll LOVE our community. Come join ThumperTalk today!

The views and opinions expressed on this page are strictly those of the author, and have not been reviewed or approved by ThumperTalk.