2012 Nightster - Vibration

[israguard]

Setup: SE Intake / Doebeck Gizmo / RC Comp Pipes (Stage 1)


Hi everyone,

Took the new toy out today for its second ride. The bike is new and so far I have had barely 20km on it.

As soon as I merged onto highway and started to pick up speed, I started to feel a vibration. I felt it through the handlebars, but it felt like it was coming from the engine. Within the city at usual low speeds there is nothing.

I was in 5th doing almost 100km (55mph) and the vibration was very evident. I downshifted to 4th and as soon as rpms went up, vibration dropped significantly. I gave it more gas in 4th, and then back to 5th and juiced it up again.

Its not the wheels/tires as when I engage the clutch at these speeds, there is zero vibration.

Any thoughts you may have would be greatly appreciated. I even thought that maybe I should switch around the plugs that lead to the injectors from the Doebeck unit.. But that shouldnt be any cause. I just have no clues as to what may be causing it.

Its not a full shake by the way.. A vibration that feels like an engine not working well combined with wheels that ar not balanced.. That type of thing.

Thanks for your time.

 

[Jack Klarich]

Check the chain and belt tension? Check for intake leak? Check engine light on? What kind of riser bushings on the handle bars?

 

[HDDon]

No vibration before stage 1?

 

[israguard]

Hi,
I dont know if there was a vibration before Stage 1 as pipes were installed at dealer prior to delivery. I then did the air intake / doebeck right after. This was first time on highway.

The SE air intake was a super easy install and fit with gasket is snug and perfect I feel.

I really dont want to undo the air intake and doebeck... Could it be a clutch issue? Or just let dealer take it for a spin?

 

[HDDon]

Since the vibes calm down when you shifted down and the revs went up I think you may just be feeling a new engine and drive train breaking in. Ride it for 5 or 600 more mile and see if it starts to smooth out. If not let the dealer take a look.

 

[israguard]

Thanks HD Don,

I called my Salesrep. He too suggested that A) Its brand new and yet to be properly broken in. B) Also, he did say.. "this is a Sportster.. not an FLHX... its normal to have more vibratioins on them".

I appreciate your time. I will ride it some more and whether positive/negative, I will revert back.

Rgds, Shawn

 

[BUBBIE]

Thanks HD Don,

I called my Salesrep. He too suggested that A) Its brand new and yet to be properly broken in. B) Also, he did say.. "this is a Sportster.. not an FLHX... its normal to have more vibratioins on them".

I appreciate your time. I will ride it some more and whether positive/negative, I will revert back.

Rgds, Shawn

**************************************************

MY BIKE

1200 Sporster 2006 Roadster.

These bikes ALL seem to vibrate when you get on it UNTIL you get it above/below 3000 RPM..Mine did it from new.
Going normal/easy thru the gears, you don't seem to feel it as much , getting on it you do.

Talk to other riders of the Sport and they will confirm my statement.

Yes I feel it , and it is normal and you Will feel it Even after break-in..

Just the nature of the beast:newsmile08:

signed....BUBBIE

 

[israguard]

Thank you Bubbie,

I suspect it is "normal"... and this after all isnt a highway bike. I was just fearful that something is wrong & when dealer sees the mods I made on my own... oh boy... there would be trouble.

I'm at the dealership Thursday and will ask them to take it for a spin. I'll report back.

Rgds, Shawn

 

[Jack Klarich]

Thank you Bubbie,

I suspect it is "normal"... and this after all isnt a highway bike. I was just fearful that something is wrong & when dealer sees the mods I made on my own... oh boy... there would be trouble.

I'm at the dealership Thursday and will ask them to take it for a spin. I'll report back.

Rgds, Shawn

Sporsters will vibrate nore than a big twin, you should have rode the older solid mount sporties if u wanted vibration:s

 

[fin_676]

Sporsters will vibrate nore than a big twin, you should have rode the older solid mount sporties if u wanted vibration:s

Yes the older solid mount sportsters vibrate a wee bit but they do smooth out a wee bit at higher revs

Brian