Older Hynautic Engine Control Bleed Plugs

[davyjo314]

I have an 80's vintage Hynautic engine control system with three stations. I need to replace the bleeder screw plugs in most of the heads. They are the older plastic pointed plugs that let the fluid bleed from the top of the control body. Any idea where I could find some? Image attached...

 

[davyjo314]

I have a three station Hynautic engine control system, 80's vintage. I need shifter and throttle control bleeder plugs. These are plastic as seen in the attached image.