ran perfect then....

8 replies to this topic
  • 4fatty

Posted July 02, 2011 - 03:38 PM


I was riding around my yard the other day on my 05 yz450. it was running perfect. The next day I pulled the bike out to go riding again, let it warm up and it stalled out from what I thought was just low idle. It would then fire up, idle fine, but giving it throttle would make it bog and die. I took the plug out, cleaned it up a little, didnt clean the carb spotless but did a quick clean. still, bogs and dies off of idle.

any ideas?

  • 4fatty

Posted July 02, 2011 - 03:39 PM


and i also made sure accel pump was tuned correctly

  • ttr250dude

Posted July 02, 2011 - 05:16 PM


Was the plug wet when you to

  • ttr250dude

Posted July 02, 2011 - 05:18 PM


Was the plug wet when you took it out? How long did you leave the choke on? It sounds like it was just flooded.

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  • 4fatty

Posted July 03, 2011 - 07:18 AM


it was wet, but im assuming after i cleaned the carb and plug it would run better? could the plug be smoked?

  • grayracer513

Posted July 03, 2011 - 08:12 AM


From your description, it sounds like something lodged in the main jet.

  • ttr250dude

Posted July 03, 2011 - 02:56 PM


How would a plugged main make a plug foul?

  • grayracer513

Posted July 03, 2011 - 03:17 PM


You said the plug was fouled. He said it would idle, but wouldn't take any throttle above/beyond that, which is pretty much exactly what happens when a main jet or main fuel circuit is wholly or partially clogged.

  • 4fatty

Posted July 05, 2011 - 07:16 PM


well i took apart the fuel spigot, and sure enough, the filters were filthy! cleaned those off, rinsed the tank out and fired it up and ripped around like it was new!

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