2013 YZ450F Idle Issue


13 replies to this topic
  • Calhoun117

Posted November 26, 2013 - 02:36 PM

#1

Hey fellas, just picked up a brand new 2013 450f yesterday. But the bike will not idle without the "choke" pulled out. Guys at the dealership yesterday said it just needed broke in a little. Well I rode it today for about 5 hours and the bike still will not idle without the "choke" plunger pulled out. Any ideas on why this is to save me a 35mile trip back to the dealership? Thanks again in advance!!

  • grayracer513

Posted November 26, 2013 - 03:14 PM

#2

The cold start button you're referring to is also the idle speed adjustment.  Back it out a little as if unscrewing it.  That will raise the idle speed.



  • Calhoun117

Posted November 26, 2013 - 04:29 PM

#3

Awesome bro thanks! That is most likely it, I will try when I get home. Thanks again brother

  • Calhoun117

Posted November 26, 2013 - 04:33 PM

#4

Once again sorry for asking such a dumb question, I am just so use to carburetors and wasn't even aware there was an idle adjustment on these throttle bodies, thanks again

  • WouldsAssassin

Posted November 26, 2013 - 06:08 PM

#5

That most likely is it. Please update when you get home and check it.



  • Calhoun117

Posted November 26, 2013 - 07:21 PM

#6

Will do, working night shift so it won't be until the morning

  • Calhoun117

Posted November 27, 2013 - 10:13 AM

#7

That was indeed it. As suspected.

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  • grayracer513

Posted November 27, 2013 - 12:03 PM

#8

So, what does that tell you about the "guys at the dealership" who you talked to?



  • Calhoun117

Posted November 28, 2013 - 09:48 PM

#9

It simply amazes me. Before this bike I came off a 450 quad and those throttle bodies don't have idle adjustments per say like this bike so I didn't even think that was a option. I can't believe they didn't mention the idle adjustment

  • shortburb

Posted December 01, 2013 - 05:43 PM

#10

New bike should have also came with the yamaha service book and small tool kit. It's pretty detailed.

  • Calhoun117

Posted December 03, 2013 - 05:04 AM

#11

Yeah I dig the service Manuel, not to often you buy something new with such a detailed Manuel anymore. I made this thread kind of out of frustration from only having the bike one day and wasnt idling. I read through the book, some good shit in there

  • grayracer513

Posted December 03, 2013 - 07:24 AM

#12

Be sure to look at page 1-11 regarding the quick fasteners.  Most people who haven't seen one of these can't figure them out.



  • Calhoun117

Posted December 03, 2013 - 07:35 AM

#13

I've seen quic fasteners before, but yes I did read through/skim basically the entire book. Especially the EFI system, everything else I'm fairly familiar with.

  • Calhoun117

Posted December 03, 2013 - 07:44 AM

#14

But thank you for your help and replies.





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