Radius jets and needles for spirit and petroleum

Last year I bought some strange looking jets with horizontal cuts (these are not threads). Now I have a Radius 119 spare kit and these jets are for Radius 119 Spirit – part no. 87S in paper envelope.
Needles for Radius 119 Spirit were included as well – part no. 28S in paper envelope.
Petroleum jet and needles were in plastic (no. 87 and 28).
Spirit and Petroleum jets are clearly different, but also needles can be recognized - petroleum have additional three cuts in the middle.

Piotrek

 

Thank you. That’s good information.


Tony

 

The outside threads, on the top side, on the alcohol jets are for the restrictor to screw on to

 

Thanks