Question about Harley Davidson Motorcycles

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Electronic throttle control

My 2013 Road King CVO has what I call a gummy throttle. The throttle does not operate smoothly when trying to make small speed adjustments like moving in heavy traffic, or even passing on the highway. When you roll on the throttle a small amount it feels like the throttle sticks, like a cable throttle that needs lubricating. As you slowly apply more and more pressure to the throttle it finally breaks lose, but gives you more speed than you intended and causes you to surge forward. The throttle has no problem returning to the staring point and does not stick when you roll off. Really rolling on hard to accelerate onto a ramp has no problem, only with the small speed changes you make a hundred times a day in traffic. It was a real problem in Daytona this weekend with all of the stop and go traffic. Sometimes the stickiness is at the start from a stop. When it breaks loose to jump forward with more power than you intended or revs higher before the clutch engages. Is this the way a ETC system suppose to work. I put 20K on my 2011 Street Glide and never had this problem

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  • Jim buccaroni Sep 18, 2015

    My 2008 street glide is doing this same thing, did you figure out what the problem was?



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  • Harley Davidson Master
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Hi Miafed, Electronic Throttle Control issues usually fall into two categories, contaminated throttle sleeve grip (sticky or slow response) or faulty grip sensor. For grip issues try loosening the control housing to see if that free's up sticky grip, if it does continue to remove screws and open housing wide enough to remove grip and clean any contamination that impedes function. Next inspect ETC sensor for binding contaminates and clean as necessary, then do a sensor test. For more information about your issue, please visit the websites below, and for specific information or questions, please feel free to contact me at Good luck and have a nice day.
BR talks about the throttle censor in the handlebar and what to look for...
Throttle by wire installation video
Harley Davidson Manuals Mark Workshop

Posted on Sep 19, 2015

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  • Harley Davidson Master
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I have a 2008 Road King Classic with (the first year) TBW (Throttle By Wire - replacing throttle cables) and have no problems with it, and it doesn't do as yours does, but acts smoothly like a cable system.

My first suggestion is to take the twist grip off (you have to remove the master cylinder and switch housing) and check it's bore, and the handlebar end it rides on, for any built up crud (rust, dried up lube, etc.).

Posted on Oct 20, 2013


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SOURCE: I have a 1997 Kawasaki Vulcan 1500 A, not the

Your bike has a hydraulic clutch with a master cylinder at the clutch lever. Remove the cap and I think you will see there is little or no fluid in the reservoir. You need to fill it up then bleed the system to remove air in the line. This is done the same a bleeding brakes on a car. If I recall correctly, the bolt that holds the hydraulic hose to the master cylinder acts as a bleeder for the cylinder and there will be a bleeder valve at the other end of the hose to bleed the hose and actuator. Many parts are available at the website below. Please rate my answer. Thanks.


Posted on Aug 13, 2010

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SOURCE: i have a 1986 yamaha virago 700 that wont run properly

2 things need to be done first start your bike get a can of wd40 after your bike is warm and running spray around the carb jointsall 4 of them if your engine changes rpms up or down you have a intake leak ether your carb joint gaskets or o-rings need replacing or your carb joints are old and need replacing. at this point wont hurt to have you carbs cleaned also

Posted on May 03, 2010

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SOURCE: Loss of power accelerating after the bikes warms up GSXR 600 K7

I think he meant to loosen the clutch cable so you have a small amount of free play before the clutch operates.

Posted on Mar 20, 2010

Testimonial: "Cheers! Yeah they did adjust the lever but it made no difference."

  • 3433 Answers

SOURCE: Hey I have a 1997 VT1100C (Honda Shadow Spirit

bEN; cHANGE THE OIL. uSE ONLY THE OIL THE BIKE PARTS STORES SELL. nO mOTOR oIL.! wET CLUTCHES HATE MOTOR OILLS. yOU CAN FLUSH THE ENGINE BUT i WOULD JUST CHANGE THE OIL again after a few hundred miles to get contaminants out of it. Don't forget to change the oil filter. It holds much of the componants of the old oil. Good Luck- Ned-

Posted on Sep 16, 2009

Testimonial: "Thanks man, really prompt and a great first step to fixing this problem. Makes me feel like a total noob, but I guess that's why I'm asking!"

  • 80 Answers

SOURCE: 2009 Street glide idles poorly, strong gas smell, stalls

The 09 models come with a "parade" mode which causes the rear cyclinder to quit firing when idling in traffic etc to combat over heating. You should be able to kick it on by rolling the throttle grip FORWARD for 5 to 10 seconds. Have you changed the pipes or air filter? If you have and never had the EFI adjusted (either factory download or fuel tuner installed) your bike could be running extra rich causing the over heating and eventual engine destruction. New Harleys run rich from the factory, any changes to the intake/exhaust system without proper fuel injection management will cause overheating. Try getting your bike into parade mode by rolling the throttle forward to the stops for a few seconds, that will cool things down.

Posted on Jun 29, 2009

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