Amal MK1 Concentric needlesA bent or worn needle can cause erratic performance. These genuine needles are accurate and guaranteed against defects. Fits 600 and 900 series concentric carbs only. Priced each, made in UK. (622 124 Triumph part number 99 1036) Marked with 2 V grooves

or any other large gasket that needs thin

and 1/2W for the 7pc set

Guides with valve seals are available but are only available in manganese bronze

and since it must be sized to fit after installation

For standard size radius adjusters click here

The larger diameter may not fit some early pre unit external drain pushrod tubes in rare cases

4 grams each (650)

For Black Diamond valve installation notes click here

For Triumph piston size "Cheat Sheets" click here

The manganese bronze valve guides are

This gasket was designed by using a pristine Triumph T100 close fin cylinder and scanning the base with the sleeves removed

and 750 Unit construction Triumph twins