Question FB 2006 EFI
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Question FB 2006 EFI
Got my new ride june 2006... 970KMS so far... dealer said 1600kms for 1st service...
I m no wrench, so bare with me...
So in first gear no trottle move forward bike does some weird kicking hard to explain somewhat like when u start in second by mistake you know...
or when u r in third and your going to slow, sometimes it does it a little in 2nd gear too if not enough trottle but still moving foward fast enough, i crank the trottle and it stops... just wondering what is the cause if anyone has a clue what i m talking about...
it feels like it would be something to do with tranny, like the torque is not always there when u need it but not fuel related... lol i ll ask when i go ge tmy 1st service i was curious to know if it is something im doing. (it's my 1st harley was on metric before...)
I guess i could just say it feels a little like i m starting in 2nd gear but i m 1st...
Road Captain
Joined: Nov 2005
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From: Bothell, WA
RE: Question FB 2006 EFI
If it is what I'm thinking, the primary drive chain probably needs adjustment. This is an important component of the 1600km service. I use the stock manual primary adjuster, but have heard that installation of the automatic primary chain adjuster can smooth out the low speed jerk. My primary chain is adjusted properly, and I still have a little jerk at low speeds. I just use the clutch, give it some gas to get me rolling, and pull in the clutch to coast. I repeat this process unitl I'm able to accelerate up to speed.
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RE: Question FB 2006 EFI
"low speed jerk. "
ahh thats what it is... i m such a retard when it comes to nuts and bolts
but yeah man that's the best description of my litle problem... or what i think could be a problem...and for sure if u crank the trottle it 'll make the "jerkin' go away but shouldn't it just be comptly smooth from 0 km all the way to cruising speed? or is it just the way the bike is u just learn to deal with it?
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RE: Question FB 2006 EFI
i guess i could give an example of what i m talkign about....
Your about to turn left sitting at a red light, the light turn green u want to move up just a little at slow speed to get yoru feet on the boards and hope you can get through before you need to put your feet down again... sometime the jerking almost throw u off balance or it feels liek you have to wait for it to be done with the jerkin before you can get a smooth accelaration to process with the turn...
does that make sense? rofl...
Tourer
Joined: Jul 2005
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From: Brookville, Ohio
RE: Question FB 2006 EFI
I've got almost 12,000 miles on my 05 Heritage Classic. Lately, when the drive train is cold, I will hear a knocking sound comming from the primary area. Not a continious knock but seems to be co-incidental with the rough idle. I'm thinkin' maybe a primary chain adjustment??? I adjusted my chain at the 10,000 service, but maybe it needs a little tweaking or the new auto-adjuster. After everything gets heated up, the knocking goes away. Bikemeup, Do you hear any knocking when the drive train is cold?
Road Captain
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From: Bothell, WA
RE: Question FB 2006 EFI
Bikemeup - I'm certain what you are experiencing is the slack coming out of your primary chain under load. As stated before, adjustment or installation of a automatic tentioner will help correct, but in your case I think it is going to require a change in riding style. I'll bet this is your first bike with a chain primary and belt final drive, am I correct? Use the clutch as I suggested for low speeds feathering it in and out to maintain your speed.
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RE: Question FB 2006 EFI
"I'll bet this is your first bike with a chain primary and belt final drive, am I correct"
You are correct! my first real bike too
they others were just wannabe bikes... i love it! but i got to get use to the ride i suppose... about the clutch... am i they only one who does this? get the bike rolling let go of the clutch, no trottle while it's moving slowly with feet on the boards until i m ready to accelerate or stop again and put feet back on the ground... that's when i notice the "low speed jerk" the most...
And no i dont hear any weird noises ou tof the bike other than the odd miss fire when i start it once out of 10 fireup...
I ll keep an eye out on the warm and cold noises... i already noticed the difference between warm and cold engine it very obvious when its happy and when it's not
almost liek a littel pet 
txs for the help guys!
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Road Captain
Joined: Nov 2005
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From: Bothell, WA
RE: Question FB 2006 EFI
I don't think your the only one that does this, though the low speed jerk is characteristic of most big V-twin engines. Give it throttle as you ease out on the clutch. If you are going very slow, once the bike starts rolling, pull back in on the clutch. repeat this process until you can accelerate up to a speed where the jerkiness goes away. The big V-twins are "thumpy" at low RPM's. You have to get the rev's up to where the engine smooths out. If the speed you are traveling at is below that RPM for first gear, just pull in on the clutch an coast until you can accelerate above that RPM. Also, at low RPM's, the primary chain repeatedly slackens and tightens causing jerkiness. After your 1000 mile service and primary chain adjustment, you should notice an improvement. If you are still not happy with the response, install an automatic primary chain tensioner that will take up the slack on the chain at all RPM's and smooth out your low speed, off idle acceleration considerably. Personally, I don't mind it, and I don't think it's worth installing the auto chain tensioner. The primary chain is very easy to adjust and only takes a matter of minutes. Once adjusted, it can run for thousands of miles before you ever need to worry about adjusting it again.
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