Glow plug for YS-61 ST2 engine

[Billigan]

Which glow plug runs best in a YS-61 ST2 engine?
I'm using a OS#8 plug and Magnum 30% fuel.
I had a friend tell me that an Enya #3 would preform best.

[DavidH]

Bill,
The Enya 3 is slightly hotter than the OS 8.
I have used both in the YS 61 with good results.
When the temps were above 90 degs I would use the OS 8.
Temps in below 90 degs I would use the Enya 3. That system worked well for me is producing a smooth running motor. I also know pilots that use the Enya 4 when the temps are above 90 degs.

David