2007 yz only runs good with choke on


3 replies to this topic
  • ssyz450fss

Posted January 19, 2012 - 01:15 PM

#1

The last time I rode my 2007yz450 i ran it out of gas. After that I had to work and never got a chance to put gas back in it. Finally 4 months later put gas back in it and now it will not run on the lower end unless its choked. Can some one give soem starting things to look at?

  • grayracer513

Posted January 19, 2012 - 02:02 PM

#2

The pilot jet has a drop of dried varnish stuck in it. That's my guess.

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  • ssyz450fss

Posted January 19, 2012 - 03:58 PM

#3

Thanks, swap the main amd pilot out readjusted everything runs like the yamahammer it is. there was green all over jets. your a life saver.

  • eflyguy

Posted January 20, 2012 - 02:42 PM

#4

You know they can be cleaned, you didn't need to replace them! :smirk:
..a





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