Silencer removal wrt flappy valve

[Dezi58]

I’ve had cause to remove the silencer and was testing the flappy valve and was wondering how far i should be able to move the valve manually, there’s 2 small tangs associated with the cable mechanism which act as stops and when i push the butterfly valve manually there’s about a 10mm gap between these 2 tangs so the valve itself hardly moves, is this correct? Also, looking inside the silencer from the inlet side there’s a round disc which blocks off the exhaust gases and forces (I assume) the gases into the perforated side walls and into the exit chamber (made up technology alert) Are there any advantages to putting any holes in this disc? My apologies if this is old ground

 

[G&T]

Unclip the cable ends at the butterfly end. Note which goes in which hole and the way round. Rotate the valve, it is on a spring so should return. Look inside the exhaust as you do this. The movement of the valve should be free and near 90 degrees.

This will help you

 

[TIJ650]

Why even fuck with it?! It’s there purely for emission control and doesn’t add anything to your overall enjoyment of life!! lol
I’d (and have) disconnect the cables and leave the fucker wide open
If you have the 1250, you’ll have to buy a servo buddy to get rid of the engine warning on dash though. The 1200 LC doesn’t need.

 

[Oldrat]

Unclip the cable ends at the butterfly end. Note which goes in which hole and the way round. Rotate the valve, it is on a spring so should return. Look inside the exhaust as you do this. The movement of the valve should be free and near 90 degrees.

This will help you

Useful vid, very comprehensive, thanks for sharing.