How lean does your 426 run at idle

3 replies to this topic
  • 02WR426

Posted June 16, 2004 - 02:47 PM


I have a "new to me" WR426 that turns the head pipe red at idle, my dealer says "they all do". I've had the carb off and can't find any problems, I thought the pilot was plugged or something.
Does anyone else agree or disagree that this is typical?
Thanks, Tim :excuseme:

  • Paewraul

Posted June 16, 2004 - 03:33 PM


That red glowing pipe is typical of the WR's. Depending on the mixture they can vary between red hot and warm orange. Dont sweat it.

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  • F6dood

Posted June 17, 2004 - 04:25 PM


How is the idle? If the engine races or revs higher than you like, richen the pilot jet by one or two sizes. I did that and the idle is fabulous. I got a bit less pipe glow afterwards. :thumbsup:

  • 02WR426

Posted June 18, 2004 - 05:42 AM


The bike would idle high for 15 - 30 seconds and then drop off to normal, 1/2 turn rich on the fuel screw fixed that up. Also went to a 45PJ and still have the red pipe. Might try a 48PJ just to see how it responds.
Sounds like it's not as big an issue as I first thought.
Thanks, TM


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