Question about Harley Davidson FLHRCI Road King Classic Motorcycles
So the problem only occurs at idle. For some reason the injection is allowing too much fuel at idle. That explains the black smoke. At highway speed the engine needs the fuel but at idle it should have a lot less fuel so it loads up and blows black.
You may have one injector that doesn't seat fully so it dumps too much gas at idle. Try some brand of injection cleaner you can trust in your bike and see if that fixes it. If not, you better get it in to the dealer because it will be dumping contaminants into the engine oil.
Posted on Jan 15, 2015
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Posted on Jan 02, 2017
sounds like carbs not cleaned right, oh try changing fuel filter, does fuel pump run constantly. if you cant hear it you can feel it, up behind the ignition. Berrymans B12 fuel additive works wonders. double dose add to gas run bike til hot then let stand overnight, pray a lot and try it again.
here is a free pdf service manual too http://www.carlsalter.com/aaman/Yamaha_VSTAR_650_MAIN_MAN.pdf
Posted on Apr 04, 2009
SOURCE: Shuts off spits and sputters
Check for vacume leaks first. Rubber lines..gaskets to carbs ect. Also remove and blow out your fuel line to tank and change out filter. Hope this helps.:)
Posted on Sep 08, 2009
i think that the problem you face is due to your fuel gauge more than the battery .
the fuel gauge at full tank can be running out of sensor due to faulty gauge mechanism . i would not worry too much as this is common even in cars .
My advise to you is not to over fill your tank and this will resolve your problem .
Posted on Sep 28, 2009
Thats not totally correct. remove your air filter cover. look to the lower right side. You will see a small hole thats where the screw driver goes in to adjust your idle. Ya the dealer has a scanlizer that can also do it if u want to spend the bucks.
Posted on Dec 20, 2009
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