Question about Harley Davidson FLHRCI Road King Classic Motorcycles

1 Answer

After riding my bike for a while, it cuts out, and chugs. (vapor-locking?) what can I do?

Posted by on

Ad

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Brigadier General:

    An expert that has over 10,000 points.

  • Master
  • 4,565 Answers

You didn't say what year or model the bike is. Your problem could be in the fuel cap. A stopped up cap vent will allow your bike to run about five or so miles then sputter to a stop. Try loosening your fuel cap and ride a ways to see if it does it again. I wouldn't do this with a full tank of fuel or you may have fuel in your lap. Also, if your bike is equipped with a vacuum operated petcock, the diaphragm may be bad. You'll have to take the fuel line and the small vacuum line off the back of the petcock. Drain the tanks but loosening the large nut and allowing the fuel to run out. Catch it with a large funnel and an empty gas can. Remove the petcock from the tank. Remove the four small screws on the backside of the petcock that holds the square plate on. Carefully remove the plate and notice how the parts come out. There's a spring, a needle, and a diaphragm in there. Hold the diaphragm up to the light and gently stretch it while looking for a hole. If you find one replace the diaphragm.

Good Luck
steve

Posted on May 30, 2011

Ad

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya Mechanic can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repair professionals here in the US.
click here to Talk to a Mechanic (only for users in the US for now) and get all the help you need.
Goodluck!

Posted on Jan 02, 2017

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Fan not coming on


Vapor lock or coil problem

Jul 07, 2014 | 2002 Honda VT 600 CD Shadow

1 Answer

Harley troubleshooting


bike is overheating check temperatur of oil make sure right oil level is in it maybe rear piston need replaceing maybe vapor lock remove fuel cap and start bike did this`remove campa if steel runs replace gas cap or bad valves might do it happen over

May 25, 2014 | 2004 Harley Davidson Road King Custom

1 Answer

How do I cure vapor lock?


If you're getting vapor lock, the bike will die after a few miles, and not restart for several minutes.
If the bike dies, immediately remove the gas cap and see if the bike will restart right away.
You could also ride it without the gas cap (try it on a tank that's 1/4-1/2 full, NOT fully full, because of gas splash) and see if it doesn't die after a few miles.

May 07, 2014 | 2001 Harley Davidson FLSTC - FLSTCI...

1 Answer

When I'm riding, the bike starts to studder and ****, when the temperature gage reading is above 205 degrees.It wants to stall out like its not getting gas.


Sounds like a fuel vapor lock problem. The gas is trying to boil in the lines and it creates a vapor. Check your fuel line routing, reroute and insulate as needed.I hope this helps.

Jul 03, 2011 | 2002 Suzuki GSX 750

1 Answer

Trophy 900


Sounds more to me like you are boiling your fuel and vapor locking. I don't know how that bike is set up, but many bikes have one way vent to prevent fuel from spilling in an accident. Has the bike been apart lately? There is insulation on most bikes to protect the tank from excess heat. If it is removed the fuel actually begin to vaporize in the tank and won feed the carb properly.

Mar 07, 2010 | 1993 Triumph Trophy 900

2 Answers

What is a Vapor Lock? How to fix it?


Google " vapor lock " and read the wikipedia definition. Your problem could be vapor lock but I think it is a vacuum problem. If no air can get into the gas tank then fuel can't get out. Most gas caps have a vent aspect built into the cap. Ride your bike with the cap loose. If the problem disappears you now know the source.

Can I get a “very helpful” rating on this answer?

Aug 19, 2009 | 2005 Kymco Venox 250

1 Answer

Cub Cadet 2165 with a Briggs & Stratton shuts off when hot. Appears to be vapor lock, as can see fuel filter emptying. After filter cools, it refills. Anyone have a solution?


It could be vapor lock. Vapor lock is a condition where the hot gasoline turns into vapor bubbles either in the fuel line or carb. When it happens, the vapors will cut off fuel flow thru the carb, essentially causing the engine to run out of fuel. You should re-route or isolate the fuel line away from the heat of the engine and install an inline fuel filter close to the carb. Also make sure that the cooling fins are not clogged up with trash or something that is causing the engine to overheat. I would also check the gas cap. Make sure the vent is clear and clean around the gasket in the cap. This can sometimes cause similar problems. Hope this helps and good luck.

Jun 28, 2009 | Cub Cadet Street Sign- tractor lawn riding...

Not finding what you are looking for?
Motorcycles Logo

Related Topics:

191 people viewed this question

Ask a Question

Usually answered in minutes!

Top Harley Davidson Experts

Arnie Burke
Arnie Burke

Level 3 Expert

4536 Answers

Mike

Level 3 Expert

4340 Answers

yadayada
yadayada

Level 3 Expert

77169 Answers

Are you a Harley Davidson Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...