One of the velocity stacks on my carbs appears to have been beaten into place with a mallet. The rim is all smushed down and I'm worried it may significantly affect airflow into that throttle body. If anyone needs to see a picture in order to help me determine whether this stack is worth replacing, let me know and I'll post one.

 

It wouldn't hurt to post up the pic.

 

Yep, post up that pic.

 

 

ouch! I would replace it while you have the carbs out.

 

I'd replace it.

 

k thx

 

I'd replace while it's off, but I'd be very very doubtful whether that'd be affecting any performance though or running of the bike... so if you have the spare cash, go for it... however, if you're skint, don't think it's anything to worry about myself. Not sure how much they are to replace...

I remember I replaced the trumpets on my Twin Webber 45 Carbs on my car a few years ago as one was damaged when someone dropped something on it... however I never noticed any reduction in airflow or power loss...