1250 Vibration.

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Manic

Grumpy Mutt
Joined
May 24, 2007
Messages
22,574
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6,790
Location
ORANIA
Bike
BMW (all models)
Since day one I have a vibration on my 1250 that gets worse and worse.
Now with 4000km on the clock, my ass gets needles and pins because of it.

So here is the story.

Its revs dependent. While riding at 2500-3500revs it starts to vibrate. When I pull the clutch in at that speed, the vibration goes away. Did balance wheels yet again.

So this is what I did this afternoon.
Start her up. Idles smooth, no funny noises.
Rev her up to 2000, keep revs there, vibration starts.
Rev to 2500, mirrors starts to vibrate lightly.
Rev to 3000rpm, keep her there, mirrors, handles, freakin everything shakes. Even the crashbars you can see are moving.

So, is this a kak way to test? Will it vibrate anyway cause its not under load?
Or, what are the chances its the flywheel?
For some reason I want to put my money on the flywheel....

Any ideas or opinions?
 
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