speedometer repair

[bachus2001m900dark]

has Anyone dismantled an analog (with needle) cable driven speedometer.  bike fell when kick stand was not completely down.  naturally i threw myself between the ground and the bike and ended up saving it from droping but my hand crushed the Trip reset knob on the left side.  i took what was left of the knob off.  Some of the screw is still there becase it was always seized.  The problem i have is that the brass or brass colored knob (that goes up in the plastic knob was bent. and now the trip has a problem rolling past 100miles and then 200 miles and then 300 miles.   wouldnt be a big deal except the low fuel light is always on and i have been relying on the tripometer to save me from spending time on the shoulder of the road.
has anyone dismantled one of these.  it seams to be a sealed unit. 
bike is 2001 m900 I.e dark

[FrankenDuc]

Speedometer?  on my monster? Mine stopped working about 15Kmi ago.  I'd try to fix it, but it's just that it's the last gauge I look at, under any circumstance... 
I'm just not very concerned at all with knowing my speed 

[militar3rd]

Yeah mine stopped working as well. 100+miles ago Gonna try and tear it up apart later this week(if i have time), ill tell ya how it goes.

[zooom]

I took my GF's 05 M620 speedo apart to replace the lens due to it cracking...it wasn't terribly hard...

[bachus2001m900dark]

thanks guys.  i think i will be trying to "re"-straighten out the brass post (for the trip reset knob). I am thinking that when i straightened it the first time with needle nose pliers that i straightened the end that i can see but reduced clearence internally.

ill keep everyone posted