Why does my Harley Davidson engine stall at idle?

If the battery will start the bike, it is not the reason the engine stalls at idle. You may have a dirty IAC (Intake Air Controller). They get gummed up and will cause stalliing, especially on a warm engine. There is self help tip on how to clean it. Sounds like intake leak if it wants to stall after warm up.

Why does my WD40 engine run rough at idle?

RevTech thought it was likely an intake leak, but before I start making a mess with WD40 to check it out, wanted to get some feedback. It seems like an intake leak would make the bike run rough at idle too.

What to do when your car backfires through intake?

Commence the process by starting your engine and letting it settle into a steady rev. Next, turn off the engine with your foot on the gas pedal. Keep the pressure on the gas pedal low so as to not burn more fuel than necessary. What this helps to achieve is an alteration of the air-fuel ratio prior to the next ignition of the engine.

When does a Harley Davidson engine misfire at low speeds?

However, when cruising along about 25-30 mph (in either 2nd or 3rd gear) it is always misfiring and sputtering pretty bad now (had a little hint originally and definitely getting worse now). After coming to a stop, the idle is a bit rough and sometimes the engine acts like it wants to cut out for a few seconds after which it seems to idle OK.

Why does my Harley Davidson engine pop when I idle?

After coming to a stop, the idle is a bit rough and sometimes the engine acts like it wants to cut out for a few seconds after which it seems to idle OK. The popping/backfire also continues about the same on decel as when I got it.

How often does a Harley Davidson engine fail?

This metal-to-metal contact promotes engine failures which can be dangerous to you and your bike. This problem can occur anywhere from 15,000 to 75,000 miles depending on the severity. The only way to truly avoid this problem is to completely swap out the chain system for a gear-driven system.

How to fix idle air control on a Harley Davidson?

Harley Davidson Idle Air Control Service..If your bike is having problem with its idle, The IAC needs to be cleaned..Will resolve your code issue and run like new. Tools needed 3/16 Allen wrench torx 27 bit and some CRC Throttle Body Cleaner..This will work on all fuel injected motorcycle. Loading…

What are the problems with a Harley Davidson starter?

Harley Davidson Common Starter Problems Summary and Fixes – YouTube There are a few very common HD Starter problems. It starts with pushing the start button on only hearing a There are a few very common HD Starter problems. It starts with pushing the start button on only hearing a Skip navigation Sign in Search Loading…

Why does my Harley Davidson run weird after a charge?

The reason its intermittent is the bike will start running weird in other words it would take a charge but if for some reason that charge did not hold for long the bike will start running weird again. So I went and change the battery and I’ve never had the problem since.

What causes a Harley Davidson to have a hard start?

When fuel injected Harley motorcycles begin to experience a rough or high idle, or a hard start condition, often this is a result of a faulty Idle Air Control ( IAC) or MAP sensor.

What’s the correct idle speed for a Harley Davidson?

Each time you make an adjustment, it is best to rev the bike a couple of times and let the idle settle. This will clear the manifold of un-burnt fuel and give you the correct idle for that adjustment. Most riders really dislike the 1,000 to 1,100 rpm idle speed on the later fuel injected (EFI) bikes.

What should I do if my Harley Davidson stall?

Also clean and check both ends of the cables to start with. Click to expand… yea it was runing good before and it start fine as usual just when riding that it stall. i am going to take the battery off and get it checked and clean the end as u said thank you , hopefully thats the issue Yea hopefully it something simple.

What are the most common problems with a Harley Davidson?

Fuel System Failures Vapor lock malfunctions, fuel injectors, and defective pressure gauges are among the most reported problems with a Harley’s fuel system. These problems can be costly and difficult to repair. Complete regular maintenance checks on the fuel system to guarantee that it’s running properly. 6. Accessories

Are there any problems with the Harley Davidson clutch?

This recall involved problems with the clutch system which won’t fully disengage. In the report, Harley-Davidson said this is the result of gas bubbles in the master cylinder clutch. If you’re considering these models, check with the dealer to make sure that the clutch got flushed or the master cylinder got rebuilt.

What are the signs of a bad Shift Solenoid?

One of the first symptoms of a bad or failing downshift solenoid is erratic shifting. If the downshift solenoid has any issues, it may cause the vehicle to behave erratically when downshifting. A bad or failing solenoid may cause the vehicle to experience hard or erratic shifting when slowing down or coming to a stop.

What happens when downshift solenoid does not work?

If the downshift solenoid fails or has an issue, the vehicle may experience late shifting when slowing down. The transmission may stay engaged in a higher gear for an extended period of time when it should be downshifting. This will cause the engine to over rev, and may put additional unnecessary strain on the engine and transmission.

Why does my Harley Davidson stall at a stop sign?

After I’ve been riding for awhile and the engine warms up it will idle stronger and is usually fine, but once in awhile when I start from a stop sign or light it will stall and I’ll have to give it some throttle to start and idle up. Of course it never does it when the dealer has it.

What to do when your Harley starts stalling?

Start the bike cold. Mist the intake flanges with brake cleaner. If your bike’s idle drops, or the engine stalls, you have an intake leak. If this is the case, replace the intake seals along with the front & rear intake flanges. If the bike passes the intake test; have the dealer or your mechanic scan the m/c for possible codes.

Why does my bike stall after a ride?

The bike starts fine when cold and runs perfect through all RPM ranges. After riding a while and it is hot it will stall at idle but starts back up with no problem. It just will not idle. It will also return to normal and idle fine after stopping for lunch. It sometimes is fine for the rest of the ride. Any Ideas? Check for trouble codes.

Why does my Harley Davidson engine keep cutting out?

Check air filter.You might have a nest in there. That too, from sitting a lot water can condense inside the carb especially if you live in a humid area….the float bowl could be poluted with water buildup….that messes up everything when it comes to running smooth… Thanks Badinfluence…

When to replace the idle air control motor on a Harley?

Direct replacement for Harley p/n 27658-06 on 2007+ EFI models except XL Sportster and 08+ TBW touring models.* When fuel injected Harley motorcycles begin to experience a rough or high idle, or a hard start condition, often this is a result of a faulty Idle Air Control ( IAC) or MAP sensor.

When fuel injected Harley motorcycles begin to experience a rough or high idle, or a hard start condition, often this is a result of a faulty Idle Air Control ( IAC) or MAP sensor.

Why does my idle air control keep sticking?

These faults will often produce a trouble code however, intermittent sticking of the Idle Air Control can sometimes only be identified by hard starting, rough idle, or idling high after warmed up. Fits the following models. May fit additional Harley models not listed that use p/n 27658-06 .*

Why is the RPM on my Harley Davidson so high?

(Could be you went through 50 key cycles with no engine issues) When you get off the interstate & the idle is high,,, if you were to power it off and restart the bike, does the idle calm down or does it resume the high idle. Would help to know how high the RPM was, but you have no tach. (?)

Is there a problem with my Harley Davidson?

Click to expand… yea it was runing good before and it start fine as usual just when riding that it stall. i am going to take the battery off and get it checked and clean the end as u said thank you , hopefully thats the issue Yea hopefully it something simple. Check plugs and wires also.

Why does my motorcycle engine stall when warm?

And the problem is often worse on a hot day. The dreaded stalling issue when the engine is warm is the most common idle problem and it is mostly related to the very lean air/fuel ratio on the modern fuel injected motorcycle engine. Why does my motorcycle stall at idle when the engine is warmed up and at operating temperature ? – Low compression.

Why does my bike stall when I put the clutch in?

Upon start up, I let the bike warm up, held clutch in and then put the bike into gear, and it immediately jumped and stalled. It keeps doing it and I can’t ride the bike. The clutch has been bled properly with 0 bubbles.

Why does my Harley Davidson stall when I idle?

It always starts easily when cold and idles well, but after a few minutes, if I’m idling awhile to get out of my driveway, the idle will fall and the engine will threaten to stall. If it does stall it’s hard to get started again, I have to give it a little throttle to get it to start and stay running.

What causes a motorcycle to run hot and stall?

Got hot very, very fast – not a “normal” warm up. Had a stuck needle, was getting pre-ignition (??) and the needle was causing fuel to flood the front cylinder – even got in the oil. (gas in the oil was causing the bike to run hot, running hot also made it stall.)

Why does my car stall when I start the engine?

The engine had too much air and not enough getting fuel is common cause the engine stalling. To start the cold engine, it requires enough a rich fuel mixture and while the engine warms up it will idle smoothly when enough fuel supply. Below is the might caused the engine stalling problem occurs:

What causes an engine to stall at a traffic light?

Problem: On Idle And Stop On Traffic Light The Engine Started Stall. When the engine isn’t fast enough (too low idle speed) it can caused the engine stalls (idle stall or stop light idle), or the alternator and/or the air conditioning compressor make engine being lugged down by a load on it.

What causes an engine to stall at idle?

If the ISC valve is gummed up with fuel varnish or dirt, it may stick, preventing the engine from maintaining the proper idle speed when the throttle closes. A faulty idle speed control circuit may also allow the engine to stall when idling if it fails to compensate for idle loads placed on the engine by the charging system or A/C compressor.

Is there check engine light for intermittent stalling?

Many times, there will be no check engine light and no fault codes to give you a clue as to what might be causing the engine to stall. So the trick to diagnosing an intermittent stalling problem is to catch the vehicle when it’s acting up — and that rarely happens when you have the vehicle in your shop.

Can a stalling engine be intermittent driveability?

Intermittent driveability problems of any kind are always a challenge to diagnose. When a customer brings you a vehicle and complains of a stalling problem, you may not have much to go on other than their description of what’s happening and when it happens.

Why does my car stall at highway speeds?

The engine may start and idle fine, but run out of power or even stall at highway speeds. If the engine starts right back up after stalling, the likely cause is low fuel volume delivery because of a weak pump. If the engine is running normally one minute, but suddenly quits, loss of ignition may be the problem.

What to do if your bike Idles but bogs with throttle?

I will look during tomorrow times. If it idles fine but it bogs down with throttle, your high speed gas jet is probably clogged. Clean your carb and spray carb cleaner in all small passages, make sure air can flow through all ports no matter how small. Put it back together and it should run great.

When does idle come back to normal on a Harley Davidson?

Just seems to happen when I’ve been running at a fairly wide open throttle maintaining higher speeds for a while (fwy) or longer stints (catching all green lights) on the streets at a speed of about 45 or more. It always seems to come back to a normal idle after getting back into first gear when stopped, or when I start going again in 1st.

What causes a bike to stall at idle?

The slightest air leak would upset idle mixture and cause stalling or high idle speed that cannot be adjusted with the throttle stop screw. I’d look at some simple stuff first, like the spark plug – which might fire OK at idle, but misfires under throttle?

What causes a car to stall at a stop light?

A stop light or idle stall often means the engine is not idling fast enough (idle speed too low), or the engine is being lugged down by a load on it created by the air conditioning compressor and/or alternator. It could also mean the fuel mixture is too rich or too lean, causing the engine to run poorly.

Why does my Volvo stall at idle RPM?

If the problem only occurs when the A/C is on, there is an issue with the compressor. If the battery is run down and the alternator is working hard to recharge it, the increases load on the engine may pull down the idle rpm to the point where it causes the engine to stall.

Why does my car idle but no check engine light?

This issue is normally caused by low fuel pressure or a faulty injector, but since you have just replaced the fuel pump, this may also be a sign of a failing idle air control (IAC) valve. This is a unit that is located on or near your intake manifold that monitors the air intake as it is mixed with fuel prior to being injected into the engine.

When does the idle air control valve stall?

However, when the engine RPM drops below the normal range of 800 RPM (for most cars), it is more than likely that you are dealing with an IAC valve problem. In cases where this valve is clogged or is nearing its replacement age, your vehicle will stall instead of idling after the release of the throttle.

What causes a car to rough idle and stall?

My car has an automatic transmission. This issue is normally caused by low fuel pressure or a faulty injector, but since you have just replaced the fuel pump, this may also be a sign of a failing idle air control (IAC) valve.

Why does my car feel like it is going to stall?

When you accelerate, the engine RPM increases, and as you let off the gas, the RPM slowly returns to the normal idling speed. However, when the engine RPM drops below the normal range of 800 RPM (for most cars), it is more than likely that you are dealing with an IAC valve problem.

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