08 YZ450 Carb full of mud (topside)


2 replies to this topic
  • Wfomx463

Posted September 25, 2009 - 01:16 PM

#1

I was having a running problem with my yz so i took off the carb and replaced the accel pump diaphram and spring, cleaned jets and checked everything else, was ok till i took off top side of carb and found the whole slide area full of somekind of mud! ***! seen a little before but this was unaccptable! i say mud but it was a mixture of fuel reisidue and carbon and maybe teflon from slide, as it was worn? dunno anyone ever seen this before?

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  • sacfelix

Posted September 25, 2009 - 02:55 PM

#2

I had the same thing happen on my 06 YZ450 until I Teed off the carb vent lines and ran a filter in the air box. Now I dont even get the slightest amount of dust in there. You should also check the boots on the carb and your air filter to make sure they are fully sealed.

  • Wfomx463

Posted September 26, 2009 - 05:18 AM

#3

the filtered vent lines might help but they got to float bowl and not the slide chamber area. filters are perfect and clean air box eveytime i swap one out.





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