Yamaha Issue

9 replies to this topic
  • TheYamahaBloke

Posted August 20, 2012 - 01:13 AM


Hi folks,

Started having problems with my WR recently, cutting out while riding as if someone hit the kill switch and sometimes not starting at all. Other than that its running perfectly! I've checked the airbox for the sake of it and theres nothing wrong there, getting fuel, no water in the carby. Recently got a new sparky. It's a '00 WR400f. Thoughts?


Edited by TheYamahaBloke, August 20, 2012 - 01:14 AM.

  • Billy450

Posted August 20, 2012 - 02:17 AM


I would have a look at ur wiring harness. Check for any worn wires or dead shorts to the frame.

Does it just die? Or cough and splutter then die?

  • Bandit9

Posted August 20, 2012 - 03:46 AM


Clogged pilot? Does it cut out right when you let off the throttle?

  • bg10459

Posted August 20, 2012 - 04:12 AM



  • Taxgod4u

Posted August 20, 2012 - 07:50 AM


bypass the kill switch first, then the ingnition switch if that was not hte culprit. free and easy test.

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  • chatchie

Posted August 20, 2012 - 06:37 PM


^^ What he said. I was kicking and bump starting my bike for an hour last weekend trying to get it to start. Water got in the kill switch connector behind the headlight making it a closed circuit. Check the simple stuff first.

  • MANIAC998

Posted August 20, 2012 - 06:39 PM


Yeah, we're going to need more info.

  • TheYamahaBloke

Posted August 24, 2012 - 01:10 AM


Sorry for the late reply, It just cuts out and it is just after I let off the throttle.

  • Bandit9

Posted August 24, 2012 - 03:34 AM


Check the pilot jet. It is clogged.

  • TheYamahaBloke

Posted August 24, 2012 - 05:30 AM


Will do, thanks mate!


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