Hi Guys, This is the first issue I have encountered. Bike starts fine and idles fine. When I rev it up in neutral and also while riding in first gear or second gear there is a sudden hick up and pull back. Its quite dangerous and I have to apply the clutch to cut power etc.

Batter is a year old and has been on trickle charger and it reads fine when it is idling and charging well when I rev up.

Any idea where to start or someone seen this issue? This is FXDL 2008 Anniversary Edition.

 

Please explain - sudden hick up and pull back . . . apply clutch to cut power. What are you talking about????

 

Basically, when u start rolling in first gear as my revs reaches 3K rpm and i am about to enter 2nd there is a strong pull back/hiccup. Same thing can happen if I am in 2nd and going into 3rd at around 3k rpm.

Basically it is not safe to drive anymore. Can easily recreate the same issue when I am idling.

 

pull back/hiccup ? some kind of acceleration?

 

Well ya did give an explanation of what "sudden hick up and pull back" is. That was "sudden hick up and pull back" the same nonsense in the 1st post. THAT is NOT an explanation.

 

Well I am on the form for a possible explanation. If I can explain what this is I can probably fix it. Why don't u take a break and let someone else respond LOL

 

I can understand the hick up as a backfire or mis, but the pull back is really what needs to be explained. What does the bike do when it pulls back? Speed up, slow down or??

Help us help you,
Tom

 

Putting the descriptions aside for now, what steps have you taken to diagnose it? Checking for codes would be a good place to begin.
Is the bike stock or do you have a tuner? When was it last serviced, mileage, etc.
It's either electric or fuel. You should also check for intake and exhaust leaks.
A fuel pressure test would tell you if you have a leak inside the tank from a fuel line or the regulator, although sometimes you can hear or see it if you remove the cap and prime the pump. How many miles are on the fuel filter?
What is the condition of the spark plugs and wires, are the caps firmly seated on the plugs?

 

Your translation of situation is rather difficult to understand.
If someone asked for a clarification then perhaps you could pause, gather your thoughts and use different words to describe.

Lets see if we can break things down:
FXDL 2008 Anniversary Edition. Basically a Dyna? The mileage and history of ownership is not known. General condition prior to problem is unknown. There is also no mention of any changes from factory stock.
For example different grips, handlebars or any performance items.
Bike starts fine and idles fine.
You state : "Battery is a year old and has been on trickle charger and it reads fine when it is idling and charging well when I rev up." How was this measured? Did you use a digital voltage meter at battery posts?
You state "When I rev it up in neutral and also while riding in first gear or second gear there is a sudden hick up and pull back."
I will take a guess that it does not happen in the other gears because the throttle is not pulled to the same point as problem in neutral, 1st or 2nd gear.

What does a hick up mean to you??
What does a pull back mean to you??

I would need to take a wild guess that perhaps you mean that a sudden loss of power and then a sudden & unexpected acceleration takes place since you report having to apply clutch.
From a distance, based on a significant amount of guessing and on the limited information provided: The throttle response is not correct.
If you have a cable throttle then perhaps somebody changed grips or played with the cables and the push or pull throttle cable is binding.
It may be binding at grip or throttle body. With bike OFF.....Does the throttle snap back smoothly when you roll throttle and release.

Here is a parts link that may help you to better understand the different parts of the motorcycle..
https://partsfinder.onlinemicrofiche....asp?make=hdmc

 

sound like fuel to ignition cut. Check fuel pressure, and fuel filter. Also check spark plugs and send a pic of the spark plugs. Check the fuel injector jacks for integrity and the coil jacks as well