xr 600 in oz popping


5 replies to this topic
  • stiz001

Posted July 10, 2005 - 11:13 PM

#1

hi guys just a quick question. I have the opportunity to get a low km's xr 600 in good nick.hHad a run on it and it goes hard(fron end comes up easy of throttle).My question is taking the end cap of and having a fully opened stock exhaust will it lead to popping on deceleration regardless of the jetting setup.The owner tells me he has gone one size up on the pilot,main jet a few and needle is second from the top.There is also no leak in the exhaust as i checked this myself.Also the carb seems to be seated correctly.The bike pulls well mid range to top. Thanks for the advise.

  • XR6's_rule

Posted July 11, 2005 - 02:24 AM

#2

If its stock this is the best jetting to run. This is what is in my bike and it runs primo!

-#155 main jet (one size larger than stock)
-#62 pilot jet (stock)
-needle third (middle) clip position
-airscrew 2.5 turns out

*remember, bigger jets wont make the bike go faster, when the engine get the optimum fuel/air mix, it has the most power. Hope this helps, cheers.

Mark.

  • XR6's_rule

Posted July 11, 2005 - 02:25 AM

#3

I forgot to mention the correct float level is 14.5mm, this is the stock setting and works fine.

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  • stiz001

Posted July 11, 2005 - 04:13 AM

#4

Thanx for that ..i will hit him up for the exact settings he has.What about the popping on decel.The only reason i ask is that i dont wont to get the bike if i am going to have to spend ages working out the carb settings.I would rather go with stock...cheers

  • frankstr

Posted July 11, 2005 - 05:43 AM

#5

Check for vacum leaks, Air filter clean and not over oiled, whats the color of the spark plug......... :applause:

  • TimBrp

Posted July 11, 2005 - 06:53 AM

#6

Popping on decel typically means there is a lean condition on the pilot circuit. This may be attributed to an air leak. Check out the intake boot for the carb engine and airbox sides.





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