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Ray Roberts

2001 Suzuki QuadRunner 500 High Idle

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Hey everyone im new here, i have a problem with my 2001 suzuki quadrunner 500. When i start the bike up it sounds fine but a few seconds later the idle speed just keeps rising to where you cant put it in gear, and if im lucky it will climb down to where i can put it in gear but when i press the gas it immediately want to die. Please help me!

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Check and see the choke, it may be stuck.  Double check that and the cable but look good because sometimes it’s the choke connector inside the carburetor. 

If that’s all clear it’s possible that the carburetor needs an adjustment. But you have to figure out why because if it was running good and just started acting up then you have to find out what.  So  if the bike was fine before then something changed that.  Maybe a piece of debris/dirt got into the carburetor somehow, maybe form dirt inside the tank, bad gas who knows. 

Also look at the air intake and make sure filters are all good and nothing got sucked into the carburetor like a piece of the air filter if it was crumbling. 

I would start there. 

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It did this when i got it but the starter went bad and had to wait for it to come in the mail, i got the bike a week and a half ago. I will check the choke and filter tomorrow, thank you very much

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Check  also  for a weak return  spring on the  main  jet needle diaphragm allowing the  carb to  creep  open  above idle ,  and make sure there is no air leak between the  cab and intake . There could be a partially  plugged  jet making the  carb run  lean. That will  make it rev  high at  idle  and die  when you open the throttle . Before digging deeper ,  check the idle air  adjustment.  Most  carbs  are set from about  3/4  to  1  1/2  turns out from gently  seated. Try turning yours in or  out about a 1/4  turn  at a time to  find the best  spot   for idle and no stall. It sounds like it is  burning  lean right now

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