Just wondering at what speeds or RPM's you guys are noticing the 103B buzz start to be felt?
I am finding at around 70 mph and up in 6th is when I start to notice the buzz.
I know this is because of the solid mount engine and the CB's.
Also I notice if I roll off the throttle at those speeds the buzz instantly subsides.
So I am thinking the buzz is coming from the power pulses of the engine through the solid mounts, and really doesn't have much to do with the counter balancers. The buzz I am feeling almost feels like as if you had solid tires and you are picking up all the feel of the pavement texture, if this makes any sense.
What has been your experience?

 

What, nobody feel the buzz ??????????????????

 

You use 6th?

 

Hell, I hardly ever get it to 5th. I noticed the buzz at 3600 rpms in any gear. Weird though because I swore I never got it up until last week.

 

What's all the buzz about?

 

everything you describe, i feel in my 07 96".

 

Yeah, it's largely related to the strength of the firing pulses. Higher speeds require more power, so each firing pulse needs to be stronger.

Lower the rpms by using a higher gear at cruising speed, and each power pulse needs to be stronger, because there are fewer of them to do the work. Up around 90 mph, the engine is working hard enough that the vibration is always there. The rubber mount motors are a little better vibration wise for cruising at high speeds like that. But they vibrate quite a bit below 2500 rpm, even at low speeds and low throttle openings. Actually, that rubbermount vibration under 2500 rpm bothers me (and passengers) more than the high-load vibration on the softail.

 

What I am finding is that once I start to get above 2650 rpm or so I start to feel the vibrations. In fact at 2650 RPM my left mirror starts to slightly blur which equates to about 73 mph in 6th. Below 2650 rpm mirror is clear. So basically what I am saying is that this buzz/vibration is starting to set up around 2650 rpm and continues as I go up in rpm no matter what gear I am in. Also at 3150 rpm I can hear my licence plate buzz so this acts as and audible shift indicator.
All I am asking is if other 103B softail owners are experiencing this same type of buzz/vibration at these same rpm's? As I understand this is suppose to be normal for these 103B softails.

 

above and below 2800 it vibrates, for my 2011 96" 2800 is the sweet spot, after 3200 i cant see **** out the mirrors, tho it seems to calm down a little around 3800 (or im just gripping tighter)

 

Ya man, I feel the buzz. I start about 4pm and by 5 pm I have really got my buzz on.