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Calhoun117

2013 YZ450F Idle Issue

14 posts in this topic

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!!

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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.

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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

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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

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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

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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.

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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.

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